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RandG function

In unit Math

Return gaussian distributed random number.

Declaration

pascal
function RandG(mean: Float; stddev: Float): Float

Description

randg returns a random number which - when produced in large quantities - has a Gaussian distribution with mean mean and standarddeviation stddev.

Errors

None.

See also

Example: ex40

pascal
Program Example40;

{ Program to demonstrate the randg function. }

Uses Math;

Var
  I : Integer;
  ExArray : Array[1..10000] of Float;
  Mean,stddev : Float;

begin
  Randomize;
  for I:=low(ExArray) to high(ExArray) do
    ExArray[i]:=Randg(1,0.2);
  MeanAndStdDev(ExArray,Mean,StdDev);
  Writeln('Mean       : ',Mean:8:4);
  Writeln('StdDev     : ',StdDev:8:4);
end.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.