jsPro - Array
/**
* +-------------------------------------------------------------------------+
* | jsPro - Error |
* +-------------------------------------------------------------------------+
* | Copyright (C) 2001-2003 Stuart Wigley |
* +-------------------------------------------------------------------------+
* | This library is free software; you can redistribute it and/or modify it |
* | under the terms of the GNU Lesser General Public License as published by|
* | the Free Software Foundation; either version 2.1 of the License, or (at |
* | your option) any later version. |
* | |
* | This library is distributed in the hope that it will be useful, but |
* | WITHOUT ANY WARRANTY; without even the implied warranty of |
* | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
* | General Public License for more details. |
* | |
* | You should have received a copy of the GNU Lesser General Public License|
* | along with this library; if not, write to the Free Software Foundation, |
* | Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* +-------------------------------------------------------------------------+
* | Authors: Stuart Wigley |
* | Randolph Fielding |
* +-------------------------------------------------------------------------+
* $Id: error.js,v 1.15 2003/09/22 04:41:10 gator4life Exp $
*/
/**
* Property used in Error.handleError to specify how errors are
* reported. Permissable values are:
*
* 0 No errors are reported.
* 1 Report the error name and error message using the status bar of the
* active browser window.
* 2 Report the error name and error message using an alert box.
* 3 Report the error name, error message and debug message using an alert
* box.
* 4 Report the error name, error message and debug message using a debug
* window. An instance of the Debug() class must be available.
*/
Error.prototype.debugLevel = 4;
/**
* Uses Error.debugLevel to control how errors are reported. If
* Error.debugLevel is set to 4, you must substitute the name of
* your Debug() instance for oDebug in the line
* var jsProDebugWindow = oDebug.
*
* @summary handles thrown exceptions
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 09/03/03
* @interface Error.handleError()
* @requires Debug.print(vMixedValue, sMessageType)
* @see Debug()
* @see Debug.print()
*/
Error.prototype.handleError = function() {
var sDebugMessage = this.debug;
var sErrorMessage = (sDebugMessage) ? sDebugMessage : '';
switch (this.debugLevel) {
case 0 :
break;
case 1 :
window.status = this.name + ': ' + this.message;
break;
case 2 :
window.alert(this.name + '\n\n' + this.message);
break;
case 3 :
window.alert(this.name + '\n\n' + this.message + '\n\n' + sErrorMessage);
break;
case 4 :
var jsProDebugWindow = oDebug;
if (jsProDebugWindow) {
var oDebugWindow = jsProDebugWindow.debugWindow;
if (oDebugWindow && !oDebugWindow.closed) {
jsProDebugWindow.print(this.name + ' ' + this.message + ' ' + sErrorMessage, 1);
}
}
}
}
/**
* Creates an object that is a subclass of Error for handling
* ArrayIndexOutOfBounds exceptions.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/27/03
* @interface new ArrayIndexOutOfBoundsException(sMethodName,
* iIndex, iArrayLength)
* @param sMethodName the name of the method where the exception was thrown
* @param iIndex the index of a hypothetical array member attempting to
* be accessed
* @param iArrayLength the length of the array
*/
function ArrayIndexOutOfBoundsException(sMethodName, iIndex, iArrayLength) {
this.name = 'ArrayIndexOutOfBoundsException';
this.message = sMethodName + ' has been accessed with an illegal index that is either negative or greater than the size of the array.';
this.debug = 'Attempting to access index ' + iIndex.toString() + ', but array has an index range of 0 to ' + (iArrayLength - 1).toString() + '.';
}
ArrayIndexOutOfBoundsException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling IllegalArgument
* exceptions.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 07/24/03
* @interface new IllegalArgumentException(sMethodName,
* vExpectedArgs, iActualArgs)
* @param sMethodName the name of the method where the exception was thrown
* @param vExpectedArgs the number of arguments expected
* @param iActualArgs the number of arguments received
*/
function IllegalArgumentException(sMethodName, vExpectedArgs, iActualArgs) {
this.name = 'IllegalArgumentException';
this.message = sMethodName + ' has been passed an illegal number of arguments.';
this.debug = 'Expected ' + vExpectedArgs.toString() + ' argument(s), but received ' + iActualArgs.toString() + ' argument(s).';
}
IllegalArgumentException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling IllegalValue
* exceptions.
*
* @author Randolph Fielding
* @version 1.0, 09/22/03
* @interface new IllegalValueException(sMethodName,
* sVariableName, vExpectedVal, vActualVal)
* @param sMethodName the name of the method where the exception was thrown
* @param sVariableName the name of the variable containing the illegal value
* @param vExpectedVal the value expected in the variable containing the
* illegal value
* @param vActualVal the value currently in the variable containing the
* illegal value
*/
function IllegalValueException(sMethodName, sVariableName, vExpectedVal, vActualVal) {
this.name = 'IllegalValueException';
this.message = sMethodName + ' has encountered an illegal value in variable ' + sVariableName + '.'
this.debug = 'Expected a value of ' + vExpectedVal.toString() + ', but contains a value of ' + vActualVal.toString() + '.'
}
IllegalValueException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling
* MethodNotAvailable exceptions.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/27/03
* @interface new MethodNotAvailableException(sMethodName,
* sMethodNameNA)
* @param sMethodName the name of the method where the exception was thrown
* @param sMethodNameNA the name of the method that was not available
*/
function MethodNotAvailableException(sMethodName, sMethodNameNA) {
this.name = 'MethodNotAvailableException';
this.message = 'A method has been called that is not available.';
this.debug = sMethodName + ' attempted to call ' + sMethodNameNA + '.';
}
MethodNotAvailableException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling
* PropertyNotAvailable exceptions.
*
* @author Randolph Fielding
* @version 1.1, 08/01/03
* @interface new PropertyNotAvailableException(sMethodName,
* sPropNameNA)
* @param sMethodName the name of the method where the exception was thrown
* @param sPropNameNA the name of the property that was not available
*/
function PropertyNotAvailableException(sMethodName, sPropNameNA) {
this.name = 'PropertyNotAvailableException';
this.message = 'A property has been accessed that is not available.';
this.debug = sMethodName + ' attempted to access ' + sPropNameNA + '.';
}
PropertyNotAvailableException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling TypeMismatch
* exceptions.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 07/24/03
* @interface new TypeMismatchException(sMethodName,
* sExpectedType, sActualType)
* @param sMethodName the name of the method where the exception was thrown
* @param sExpectedType the name of the expected type of an argument
* @param sActualType the name of the actual type of an argument
*/
function TypeMismatchException(sMethodName, sExpectedType, sActualType) {
this.name = 'TypeMismatchException';
this.message = sMethodName + ' has been passed an argument with an illegal or inappropriate type.';
this.debug = 'Expected an argument with a type of ' + sExpectedType + ', but received an argument with a type of ' + sActualType + '.';
}
TypeMismatchException.prototype = new Error();
/**
* Creates an object that is a subclass of Error for handling Unknown
* exceptions.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/27/03
* @interface new UnknownException(sMethodName)
* @param sMethodName the name of the method where the exception was thrown
*/
function UnknownException(sMethodName) {
this.name = 'UnknownException';
this.message = 'An unknown error has occurred in ' + sMethodName + '.';
}
UnknownException.prototype = new Error();
/**
* +-------------------------------------------------------------------------+
* | jsPro - Debug |
* +-------------------------------------------------------------------------+
* | Copyright (C) 2001-2003 Stuart Wigley |
* +-------------------------------------------------------------------------+
* | This library is free software; you can redistribute it and/or modify it |
* | under the terms of the GNU Lesser General Public License as published by|
* | the Free Software Foundation; either version 2.1 of the License, or (at |
* | your option) any later version. |
* | |
* | This library is distributed in the hope that it will be useful, but |
* | WITHOUT ANY WARRANTY; without even the implied warranty of |
* | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
* | General Public License for more details. |
* | |
* | You should have received a copy of the GNU Lesser General Public License|
* | along with this library; if not, write to the Free Software Foundation, |
* | Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* +-------------------------------------------------------------------------+
* | Authors: Stuart Wigley |
* | Randolph Fielding |
* +-------------------------------------------------------------------------+
* $Id: debug.js,v 1.6 2003/09/22 05:07:41 gator4life Exp $
*/
/**
* Creates an object that opens a window for debugging.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 09/05/03
* @interface new Debug()
*/
function Debug() {
this.debugWindow = window.open('../debug/debug.html', 'debug', 'width=400,height=600,resizable=yes,scrollbars=yes');
}
/**
* Clears the contents of the debug window.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 09/05/03
* @interface Debug.clear()
* @return true if no exceptions are encountered
* @return null if an exception is encountered
* @throws IllegalArgumentException
* @throws UnknownException
*/
Debug.prototype.clear = function() {
try {
var vError = null;
var iNumArguments = arguments.length;
if (iNumArguments != 0) {
throw vError = new IllegalArgumentException('Debug.clear', 0, iNumArguments);
}
var oMessageContainer = document.getElementById('messageContainer');
if (!oMessageContainer) {
throw vError = new UnknownException('Debug.clear');
}
while (oMessageContainer.hasChildNodes()) {
oMessageContainer.removeChild(oMessageContainer.firstChild);
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : true;
}
}
/**
* Displays content within the debug window.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 09/05/03
* @interface Debug.print(vMixedValue)
* @interface Debug.print(vMixedValue, iMessageType)
* @param vMixedValue content to be displayed within the debug window
* @param iMessageType an integer representing the type of content to display
* within the debug window (information: 0; error: 1)
* (optional)
* @return true if no exceptions are encountered
* @return null if an exception is encountered
* @throws IllegalArgumentException
* @throws IllegalValueException
* @throws TypeMismatchException
* @throws UnknownException
*/
Debug.prototype.print = function(vMixedValue) {
try {
var vError = null;
var iNumArguments = arguments.length;
var iMessageType = 0;
if ((iNumArguments < 1) || (iNumArguments > 2)) {
throw vError = new IllegalArgumentException('Debug.print', '1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iMessageType = arguments[1];
}
if ((typeof iMessageType != 'number') || (iMessageType.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Debug.print', 'integer', typeof iMessageType);
}
if ((iMessageType != 0) && (iMessageType != 1)) {
throw vError = new IllegalValueException('Debug.print', 'iMessageType', '0 or 1', iMessageType);
}
var oDebugWindow = this.debugWindow;
if (!oDebugWindow || oDebugWindow.closed) {
throw vError = new UnknownException('Debug.print');
}
var oDocument = oDebugWindow.document;
if (!oDocument) {
throw vError = new UnknownException('Debug.print');
}
var oMessageContainer = oDocument.getElementById('messageContainer');
if (!oMessageContainer) {
throw vError = new UnknownException('Debug.print');
}
var oTitleRow = oDocument.createElement('tr');
var oTitleCell = oDocument.createElement('td');
var oBodyRow = oDocument.createElement('tr');
var oBodyCell = oDocument.createElement('td');
if (!oTitleRow || !oTitleCell || !oBodyRow || !oBodyCell) {
throw vError = new UnknownException('Debug.print');
}
var oTitleRowStyle = oTitleRow.style;
if (oTitleRowStyle) {
oTitleRowStyle.backgroundColor = '#EEE';
oTitleRowStyle.fontWeight = 700;
}
var sOutputString = vMixedValue.toString();
var sTitle = 'info';
var sBody = sOutputString;
if (iMessageType == 1) {
sTitle = sOutputString.match(/\w+/);
sBody = sOutputString.replace(/\w+/, '');
var oBodyCellStyle = oBodyCell.style;
if (oBodyCellStyle) {
oBodyCell.style.backgroundColor = '#FCC';
}
}
oMessageContainer.appendChild(oTitleRow);
oTitleRow.appendChild(oTitleCell);
oTitleCell.appendChild(oDocument.createTextNode(sTitle));
oMessageContainer.appendChild(oBodyRow);
oBodyRow.appendChild(oBodyCell);
oBodyCell.appendChild(oDocument.createTextNode(sBody));
oDebugWindow.focus();
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : true;
}
}
/**
* +-------------------------------------------------------------------------+
* | jsPro - Test |
* +-------------------------------------------------------------------------+
* | Copyright (C) 2001-2003 Stuart Wigley |
* +-------------------------------------------------------------------------+
* | This library is free software; you can redistribute it and/or modify it |
* | under the terms of the GNU Lesser General Public License as published by|
* | the Free Software Foundation; either version 2.1 of the License, or (at |
* | your option) any later version. |
* | |
* | This library is distributed in the hope that it will be useful, but |
* | WITHOUT ANY WARRANTY; without even the implied warranty of |
* | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
* | General Public License for more details. |
* | |
* | You should have received a copy of the GNU Lesser General Public License|
* | along with this library; if not, write to the Free Software Foundation, |
* | Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* +-------------------------------------------------------------------------+
* | Authors: Stuart Wigley |
* | Randolph Fielding |
* +-------------------------------------------------------------------------+
* $Id: test.js,v 1.6 2003/09/15 05:07:09 gator4life Exp $
*/
/**
* Creates an object that provides methods for testing all jsPro libraries.
*
* @author Stuart Wigley
* @version 1.0, 07/24/03
* @interface new Test()
*/
function Test() { }
/**
* Evaluates and returns the result of a jsPro method using assumptions about
* the structure and ids of HTML elements in the jsPro HTML test files.
*
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 08/20/03
* @interface Test.evaluateMethod(oButton, sClass)
* @param oButton the HTML input-button element that is clicked
* @param sClass the name of the jsPro class instance being tested
* @return the result of attempting to evaluate a jsPro method
* @return null if an exception is encountered
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Test.prototype.evaluateMethod = function(oButton, sClass) {
try {
var vError = null;
var iNumArguments = arguments.length;
if (iNumArguments != 2) {
throw vError = new IllegalArgumentException('Error.evaluateMethod', 2, iNumArguments);
}
if (typeof oButton != 'object') {
throw vError = new TypeMismatchException('Error.evaluateMethod', 'object', typeof oButton);
}
if (typeof sClass != 'string') {
throw vError = new TypeMismatchException('Error.evaluateMethod', 'string', typeof sClass);
}
var sMethodName = oButton.id;
var oInput1 = document.getElementById(sMethodName + '1');
var oInput2 = document.getElementById(sMethodName + '2');
var oInput3 = document.getElementById(sMethodName + '3');
var oOutput = document.getElementById(sMethodName + 'Result');
var sArguments = '';
if (oInput1) {
var sInput1Value = oInput1.value;
if (sInput1Value != '') {
var fInput1Value = parseFloat(sInput1Value);
sArguments += (isNaN(fInput1Value)) ? '\'' + sInput1Value + '\'' : fInput1Value;
}
}
if (oInput2) {
var sInput2Value = oInput2.value;
if (sInput2Value != '') {
var fInput2Value = parseFloat(sInput2Value);
sArguments += (isNaN(fInput2Value)) ? ', \'' + sInput2Value + '\'' : ', ' + fInput2Value;
}
}
if (oInput3) {
var sInput3Value = oInput3.value;
if (sInput3Value != '') {
var fInput3Value = parseFloat(sInput3Value);
sArguments += (isNaN(fInput3Value)) ? ', \'' + sInput3Value + '\'' : ', ' + fInput3Value;
}
}
var vResult = eval(sClass + '.' + sMethodName + '(' + sArguments + ')');
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
if (oOutput) {
oOutput.value = vResult;
}
}
}
/**
* +-------------------------------------------------------------------------+
* | jsPro - Array |
* +-------------------------------------------------------------------------+
* | Copyright (C) 2001-2003 Stuart Wigley |
* +-------------------------------------------------------------------------+
* | This library is free software; you can redistribute it and/or modify it |
* | under the terms of the GNU Lesser General Public License as published by|
* | the Free Software Foundation; either version 2.1 of the License, or (at |
* | your option) any later version. |
* | |
* | This library is distributed in the hope that it will be useful, but |
* | WITHOUT ANY WARRANTY; without even the implied warranty of |
* | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
* | General Public License for more details. |
* | |
* | You should have received a copy of the GNU Lesser General Public License|
* | along with this library; if not, write to the Free Software Foundation, |
* | Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* +-------------------------------------------------------------------------+
* | Authors: Stuart Wigley |
* | Randolph Fielding |
* +-------------------------------------------------------------------------+
* $Id: array.js,v 1.28 2003/09/22 06:02:21 gator4life Exp $
*/
/**
* Calculates and returns the average deviation of all array members or of a
* subset of array members (if the optional start and length arguments are
* specified).
*
* @summary average deviation
* @author Stuart Wigley
* @version 1.0, 09/19/03
* @interface Array.averageDev()
* @interface Array.averageDev(iStart)
* @interface Array.averageDev(iStart, iLength)
* @requires Array.mean(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the average deviation of all array members or of a
* subset of array members
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws MethodNotAvailableException
* @throws TypeMismatchException
* @throws UnknownException
* @see Array.mean()
*/
Array.prototype.averageDev = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (!('mean' in this)) {
throw vError = new MethodNotAvailableException('Array.averageDev', 'Array.mean');
}
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.averageDev', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.averageDev', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.averageDev', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.averageDev', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.averageDev', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.averageDev', iEnd, iArrayLength);
}
var fMean = this.mean(iStart, iEnd);
if (!fMean) {
throw vError = new UnknownException('Array.averageDev');
}
var aAbsoluteDevs = new Array();
var iCount = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
aAbsoluteDevs[iCount] = Math.abs(this[i] - fMean);
iCount++;
}
}
var fAverageDev = aAbsoluteDevs.mean();
if (!fAverageDev) {
throw vError = new UnknownException('Array.averageDev');
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fAverageDev;
}
}
/**
* Changes the case of all array keys to lowercase or uppercase.
*
* @summary change key case
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 09/14/03
* @interface Array.changeKeyCase(iCase)
* @param iCase an integer representing the case to change array keys
* to (lowercase: 0; uppercase: 1)
* @return an array with keys changed to lowercase or uppercase
* @return null if an exception is encountered
* @throws IllegalArgumentException
* @throws IllegalValueException
* @throws TypeMismatchException
*/
Array.prototype.changeKeyCase = function(iCase) {
try {
var vError = null;
var iNumArguments = arguments.length;
if (iNumArguments != 1) {
throw vError = new IllegalArgumentException('Array.changeKeyCase', 1, iNumArguments);
}
if ((typeof iCase != 'number') || (iCase.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.changeKeyCase', 'integer', typeof iCase);
}
if ((iCase != 0) && (iCase != 1)) {
throw vError = new IllegalValueException('Array.changeKeyCase', 'iCase', '0 or 1', iCase);
}
for (var sKey in this) {
if (this.hasOwnProperty(sKey)) {
var sKeyCase = (iCase == 1) ? sKey.toUpperCase() : sKey.toLowerCase();
if (sKeyCase != sKey) {
this[sKeyCase] = this[sKey];
delete this[sKey];
}
}
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : this;
}
}
/**
* Returns an array of 'chunks' where each 'chunk' is an array of
* iChunkSize formed from this array.
*
* @summary split into chunks
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 06/27/03
* @interface Array.chunk(iChunkSize)
* @param iChunkSize the size of a 'chunk' formed from this array
* @return an array of 'chunks' formed from this array
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.chunk = function(iChunkSize) {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
if (iNumArguments != 1) {
throw vError = new IllegalArgumentException('Array.chunk', 1, iNumArguments);
}
if ((typeof iChunkSize != 'number') || (iChunkSize.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.chunk', 'integer', typeof iChunkSize);
}
if ((iChunkSize <= 0) || (iChunkSize > iArrayLength)) {
throw vError = new ArrayIndexOutOfBoundsException('Array.chunk', iChunkSize, iArrayLength);
}
var iChunkedArrayLength = Math.ceil(iArrayLength / iChunkSize);
var aChunkedArray = new Array(iChunkedArrayLength);
var iSourceArrayIndex = 0;
for (var i = 0; i < iChunkedArrayLength; i++) {
aChunkedArray[i] = new Array(iChunkSize);
for (var j = 0; j < iChunkSize; j++) {
aChunkedArray[i][j] = this[iSourceArrayIndex++];
}
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : aChunkedArray;
}
}
/**
* Returns an associative array keyed on the values of this array. Each member
* of the associative array contains an integer value representing the number
* of occurrences of that member's key in this array.
*
* @summary count occurrence of values
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 06/29/03
* @interface Array.count()
* @return an associative array of counted values
* @return null if an exception is encountered
* @throws IllegalArgumentException
*/
Array.prototype.count = function() {
try {
var vError = null;
var iNumArguments = arguments.length;
if (iNumArguments > 0) {
throw vError = new IllegalArgumentException('Array.count', 0, iNumArguments);
}
var iArrayLength = this.length;
var aCountedArray = new Array();
for (var i = 0; i < iArrayLength; i++) {
var sValue = this[i].toString();
aCountedArray[sValue] = (aCountedArray[sValue] == undefined) ? 1 : ++aCountedArray[sValue];
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : aCountedArray;
}
}
/**
* Calculates and returns the coefficient of variation of all array members or
* of a subset of array members (if the optional start and length arguments are
* specified).
*
* @summary coefficient of variation
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.4, 08/08/03
* @interface Array.covar()
* @interface Array.covar(iStart)
* @interface Array.covar(iStart, iLength)
* @requires Array.mean(iStart, iLength)
* @requires Array.standardDev(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the coefficient of variation of all array members or of
* a subset of array members
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws MethodNotAvailableException
* @throws TypeMismatchException
* @throws UnknownException
* @see Array.mean()
* @see Array.standardDev()
*/
Array.prototype.covar = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (!('mean' in this)) {
throw vError = new MethodNotAvailableException('Array.covar', 'Array.mean');
}
if (!('standardDev' in this)) {
throw vError = new MethodNotAvailableException('Array.covar', 'Array.standardDev');
}
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.covar', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.covar', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.covar', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.covar', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.covar', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.covar', iEnd, iArrayLength);
}
var fMean = this.mean(iStart, iLength);
var fStandardDev = this.standardDev(iStart, iLength);
if (!fMean || !fStandardDev) {
throw vError = new UnknownException('Array.covar');
}
var fCovar = fStandardDev / fMean;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fCovar;
}
}
/**
* Fills this array or a subset of array members (if the optional start and
* length arguments are specified) with a value of any data type.
*
* @summary fill
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/28/03
* @interface Array.fill(vFill)
* @interface Array.fill(vFill, iStart)
* @interface Array.fill(vFill, iStart, iLength)
* @param vFill a value of any data type to fill this array or a
* subset of array members with
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to fill beginning at
* iStart (optional)
* @return a modified array
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.fill = function(vFill) {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if ((iNumArguments < 1) || (iNumArguments > 3)) {
throw vError = new IllegalArgumentException('Array.fill', '1, 2 or 3', iNumArguments);
} else if (iNumArguments == 3) {
iStart = arguments[1];
iLength = arguments[2];
} else if (iNumArguments == 2) {
iStart = arguments[1];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.fill', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.fill', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.fill', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.fill', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.fill', iEnd, iArrayLength);
}
for (var i = iStart; i < iEnd; i++) {
this[i] = vFill;
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : this;
}
}
/**
* Returns the maximum numerical value contained in this array or in a subset
* of array members (if the optional start and length arguments are specified).
*
* @summary maximum value
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/27/03
* @interface Array.max()
* @interface Array.max(iStart)
* @interface Array.max(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the maximum numerical value contained in this array or
* in a subset of array members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.max = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.max', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.max', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.max', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.max', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.max', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.max', iEnd, iArrayLength);
}
var fMax = null;
for (var i = iStart; i < iEnd; i++) {
if ((typeof this[i] == 'number') && ((fMax == null) || (this[i] > fMax))) {
fMax = this[i];
}
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fMax;
}
}
/**
* Calculates and returns the mean of all array members or of a subset of array
* members (if the optional start and length arguments are specified).
*
* @summary mean
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.5, 08/08/03
* @interface Array.mean()
* @interface Array.mean(iStart)
* @interface Array.mean(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the mean of all array members or of a subset of array
* members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.mean = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.mean', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.mean', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.mean', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.mean', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.mean', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.mean', iEnd, iArrayLength);
}
var fSum = 0;
var iCount = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
fSum += this[i];
iCount++;
}
}
var fMean = (iCount == 0) ? null : fSum / iCount;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fMean;
}
}
/**
* Calculates and returns the median of all array members or of a subset of
* array members (if the optional start and length arguments are specified).
*
* @summary median
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 08/08/03
* @interface Array.median()
* @interface Array.median(iStart)
* @interface Array.median(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the median of all array members or of a subset of array
* members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.median = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.median', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.median', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.median', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.median', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.median', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.median', iEnd, iArrayLength);
}
var aTempArray = new Array();
var iTempArrayIndex = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
aTempArray[iTempArrayIndex++] = this[i];
}
}
var iTempArrayLength = aTempArray.length;
var iModTempArrayLength = iTempArrayLength - 1;
for (var j = 0; j < iModTempArrayLength; j++) {
for (var k = j + 1; k < iTempArrayLength; k++) {
if (aTempArray[k] < aTempArray[j]) {
var fValue = aTempArray[j];
aTempArray[j] = aTempArray[k];
aTempArray[k] = fValue;
}
}
}
var fMedian = (iTempArrayLength == 0) ? null : (iTempArrayLength % 2 == 1) ? aTempArray[Math.floor(iTempArrayLength / 2)] : (aTempArray[iTempArrayLength / 2] + aTempArray[(iTempArrayLength / 2) - 1]) / 2;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fMedian;
}
}
/**
* Returns the minimum numerical value contained in this array or in a subset
* of array members (if the optional start and length arguments are specified).
*
* @summary minimum value
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 06/27/03
* @interface Array.min()
* @interface Array.min(iStart)
* @interface Array.min(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the minimum numerical value contained in this array or
* in a subset of array members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.min = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.min', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.min', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.min', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.min', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.min', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.min', iEnd, iArrayLength);
}
var fMin = null;
for (var i = iStart; i < iEnd; i++) {
if ((typeof this[i] == 'number') && ((fMin == null) || (this[i] < fMin))) {
fMin = this[i];
}
}
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fMin;
}
}
/**
* Calculates and returns the product of all array members or of a subset of
* array members (if the optional start and length arguments are specified).
*
* @summary product
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 08/08/03
* @interface Array.product()
* @interface Array.product(iStart)
* @interface Array.product(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the product of all array members or of a subset of
* array members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.product = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.product', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.product', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.product', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.product', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.product', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.product', iEnd, iArrayLength);
}
var fProduct = 1;
var iCount = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
fProduct *= this[i];
iCount++;
}
}
fProduct = (iCount == 0) ? null : fProduct;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fProduct;
}
}
/**
* Calculates and returns the range of all array members or of a subset of
* array members (if the optional start and length arguments are specified).
*
* @summary range
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 08/08/03
* @interface Array.range()
* @interface Array.range(iStart)
* @interface Array.range(iStart, iLength)
* @requires Array.max(iStart, iLength)
* @requires Array.min(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the range of all array members or of a subset of array
* members
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws MethodNotAvailableException
* @throws TypeMismatchException
* @throws UnknownException
* @see Array.max()
* @see Array.min()
*/
Array.prototype.range = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (!('max' in this)) {
throw vError = new MethodNotAvailableException('Array.range', 'Array.max');
}
if (!('min' in this)) {
throw vError = new MethodNotAvailableException('Array.range', 'Array.min');
}
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.range', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.range', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.range', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.range', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.range', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.range', iEnd, iArrayLength);
}
var fMax = this.max(iStart, iLength);
var fMin = this.min(iStart, iLength);
if (!fMax || !fMin) {
throw vError = new UnknownException('Array.range');
}
var fRange = fMax - fMin;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fRange;
}
}
/**
* Calculates and returns the standard deviation of all array members or of a
* subset of array members (if the optional start and length arguments are
* specified).
*
* @summary standard deviation
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.4, 08/08/03
* @interface Array.standardDev()
* @interface Array.standardDev(iStart)
* @interface Array.standardDev(iStart, iLength)
* @requires Array.variance(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the standard deviation of all array members or of a
* subset of array members
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws MethodNotAvailableException
* @throws TypeMismatchException
* @throws UnknownException
* @see Array.variance()
*/
Array.prototype.standardDev = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (!('variance' in this)) {
throw vError = new MethodNotAvailableException('Array.standardDev', 'Array.variance');
}
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.standardDev', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.standardDev', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.standardDev', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.standardDev', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.standardDev', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.standardDev', iEnd, iArrayLength);
}
var fVariance = this.variance(iStart, iLength);
if (!fVariance) {
throw vError = new UnknownException('Array.standardDev');
}
var fStandardDev = Math.sqrt(fVariance);
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fStandardDev;
}
}
/**
* Calculates and returns the sum of all array members or of a subset of array
* members (if the optional start and length arguments are specified).
*
* @summary sum
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.2, 08/08/03
* @interface Array.sum()
* @interface Array.sum(iStart)
* @interface Array.sum(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the sum of all array members or of a subset of array
* members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.sum = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.sum', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.sum', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.sum', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.sum', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.sum', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.sum', iEnd, iArrayLength);
}
var fSum = 0;
var iCount = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
fSum += this[i];
iCount++;
}
}
fSum = (iCount == 0) ? null : fSum;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fSum;
}
}
/**
* Swaps the values of two array members at the specified indices.
*
* @summary swap two members
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.1, 06/27/03
* @interface Array.swap(iIndex1, iIndex2)
* @param iIndex1 the index of an array member
* @param iIndex2 the index of an array member
* @return a modified array
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws TypeMismatchException
*/
Array.prototype.swap = function(iIndex1, iIndex2) {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
if (iNumArguments != 2) {
throw vError = new IllegalArgumentException('Array.swap', 2, iNumArguments);
}
if ((typeof iIndex1 != 'number') || (iIndex1.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.swap', 'integer', typeof iIndex1);
}
if ((typeof iIndex2 != 'number') || (iIndex2.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.swap', 'integer', typeof iIndex2);
}
if ((iIndex1 < 0) || (iIndex1 >= iArrayLength)) {
throw vError = new ArrayIndexOutOfBoundsException('Array.swap', iIndex1, iArrayLength);
}
if ((iIndex2 < 0) || (iIndex2 >= iArrayLength)) {
throw vError = new ArrayIndexOutOfBoundsException('Array.swap', iIndex2, iArrayLength);
}
var vTempValue = this[iIndex1];
this[iIndex1] = this[iIndex2];
this[iIndex2] = vTempValue;
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : this;
}
}
/**
* Calculates and returns the unbiased variance of all array members or of a
* subset of array members (if the optional start and length arguments are
* specified).
*
* @summary unbiased variance
* @author Stuart Wigley
* @author Randolph Fielding
* @version 1.4, 08/08/03
* @interface Array.variance()
* @interface Array.variance(iStart)
* @interface Array.variance(iStart, iLength)
* @requires Array.mean(iStart, iLength)
* @param iStart the index of the array member to start at (optional)
* @param iLength the number of array members to evaluate beginning at
* iStart (optional)
* @return the unbiased variance of all array members or of a
* subset of array members
* @return null if no array members are numbers
* @return null if an exception is encountered
* @throws ArrayIndexOutOfBoundsException
* @throws IllegalArgumentException
* @throws MethodNotAvailableException
* @throws TypeMismatchException
* @throws UnknownException
* @see Array.mean()
*/
Array.prototype.variance = function() {
try {
var vError = null;
var iArrayLength = this.length;
var iNumArguments = arguments.length;
var iStart = 0;
var iLength = iArrayLength;
if (!('mean' in this)) {
throw vError = new MethodNotAvailableException('Array.variance', 'Array.mean');
}
if (iNumArguments > 2) {
throw vError = new IllegalArgumentException('Array.variance', '0, 1 or 2', iNumArguments);
} else if (iNumArguments == 2) {
iStart = arguments[0];
iLength = arguments[1];
} else if (iNumArguments == 1) {
iStart = arguments[0];
iLength -= iStart;
}
if ((typeof iStart != 'number') || (iStart.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.variance', 'integer', typeof iStart);
}
if ((typeof iLength != 'number') || (iLength.toString().indexOf('.') != -1)) {
throw vError = new TypeMismatchException('Array.variance', 'integer', typeof iLength);
}
var iEnd = iStart + iLength;
if (iStart < 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.variance', iStart, iArrayLength);
}
if (iLength <= 0) {
throw vError = new ArrayIndexOutOfBoundsException('Array.variance', iLength, iArrayLength);
}
if (iEnd > iArrayLength) {
throw vError = new ArrayIndexOutOfBoundsException('Array.variance', iEnd, iArrayLength);
}
var fMean = this.mean(iStart, iLength);
if (!fMean) {
throw vError = new UnknownException('Array.variance');
}
var fSum = 0;
var iCount = 0;
for (var i = iStart; i < iEnd; i++) {
if (typeof this[i] == 'number') {
fSum += Math.pow((this[i] - fMean), 2);
iCount++;
}
}
if (iCount == 1) {
throw vError = new UnknownException('Array.variance');
}
var fVariance = (iCount == 0) ? null : fSum / (iCount - 1);
}
catch (vError) {
if (vError instanceof Error) {
vError.handleError();
}
}
finally {
return vError ? null : fVariance;
}
}
var oTest = new Test();
var oDebug = new Debug();
var aSample = new Array(1, 2, 3, 4, 5, 'a', 'b', 'c', 'd', 'e');
aSample['hello'] = 'hesdllo';
Starting Array = [1, 2, 3, 4, 5, 'a', 'b', 'c', 'd', 'e']
Array.averageDev()
Array.changeKeyCase()
Array.chunk()
Array.count()
Array.covar()
Array.fill()
Array.max()
Array.mean()
Array.median()
Array.min()
Array.product()
Array.range()
Array.standardDev()
Array.sum()
Array.swap()
Array.variance()