reading values from THistogramFunction

[philip]

I can't figure out how to read the calculated values from a histogram. The following would loop through each bin

Code: Select all

for( int j = 0; j < dynamic_cast< THistogramFunction * >( c -> Series[ 1 ] -> FunctionType ) -> NumBins; j ++ )
   ?????;

but how do i now read the function's values using index j? In ChartEditor, the desired column is headed 'Bar' when viewing the series.

[Narcís]

Hi philip,

You can retrieve function series values, for example:

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  for i:=0 to (Chart1[1].FunctionType as THistogramFunction).NumBins -1 do
  begin
    BinVal:=Chart1[1].YValue[i];
  end;

Code below does the same but is simpler:

Code: Select all

  for i:=0 to Chart1[1].Count -1 do
  begin
    BinVal:=Chart1[1].YValue[i];
  end;

Hope this helps!