function Mean ( const DataArray : array of Double ) : Extended;
Description
The Mean function returns the average of a set of Double values in a DataArray.
Related commands
Max Gives the maximum of two integer values
Min Gives the minimum of two integer values
Example code : Calculate the mean of a set of 5 numbers
var
numbers : array[1..5] of Double;
aveVal, meanVal : Double;
begin
// Set up the array of 5 floating point numbers
numbers[1] := 1.0;
numbers[2] := 2.5;
numbers[3] := 3.0;
numbers[4] := 4.5;
numbers[5] := 25.0;
// Calculate the average of these numbers
aveVal := (numbers[1] + numbers[2] + numbers[3] +
numbers[4] + numbers[5]) / 5;
// Calculate the mean of these numbers
meanVal := Mean(numbers);
// Show these values
ShowMessage('Average = '+FloatToStr(aveVal));
ShowMessage('Mean = '+FloatToStr(meanVal));
end;
Show full unit code
Average = 7.2
Mean = 7.2