macro in excel

Hi
I m trying to compute simulate 500 lines, each line cosists of 260 random points( rand () ) So what I wanna do is generate a graph with 500 paths by using macro in Excel. Can you briefly show me how it works?
thats a graph with 100paths
Regards
Sijin
sijin wuAsked:
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xtermieConnect With a Mentor Commented:
You can use this macro to create the random numbers
Sub randomnums()
Dim nocols, norows As Integer
Dim ws As Worksheet

norows = 200    'you can change these
nocols = 500    'you can change these
Set ws = Application.ActiveSheet

Application.ScreenUpdating = False

For i = 1 To norows
    For j = 1 To nocols
        ws.Cells(i, j).Activate
        ws.Cells(i, j).Formula = "=Rand()"
    Next j
Next i

Application.ScreenUpdate = True
End Sub

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In your Excel file you can have the graph set up to use the random range.
If you want we can write a separate macro (or append the above) to create the line graph
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KimputerConnect With a Mentor Commented:
Above code obviously works, but please note the following:

- Excel usually only allows 255 lines, not the 500 you want
- Displaying random numbers, (graph/line/bars or otherwise) is usually of NO USE. IT will be ONE BIG BLOCK OF BLACK DOTS (if not, the random generator is defect). Or in Excel, it's grey, since all the colors fade into each other (lines visiable for around 15 lines, above 50, it's getting like a full block of grey).
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xtermieCommented:
Good comments, code and recommendations provided
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