Autofill based on a cell reference

Is there a way to only fill equations in a specified number of rows? I have many columns of equations that analyze anywhere from 5 data points to several thousand depending on the user's desire for the current report. While the wait time isn't extremely long, it is longer than I prefer. Is there any way that I can have the user type in the number of data points it wants to look at and fill the equations down that number of rows? Removing the equations that are not needed for the specific data analysis significantly speeds up the calculations, but I don't want to have to have someone do drag the cells down manually anytime the analysis is changed (especially because some people using the sheet might not understand or know how to do that).

Sub Auto_Fill()
Dim lrow As Long
With ActiveSheet
lrow = InputBox("enter a number")
Range("C1:C" & lrow).FillDown
End With
End Sub

Assumes a formula in C1


Gord Dibben MS Excel MVP

On Fri, 11 Aug 2006 08:30:32 -0400, redstang423
<[email protected]> wrote:

>
>Is there a way to only fill equations in a specified number of rows? I
>have many columns of equations that analyze anywhere from 5 data points
>to several thousand depending on the user's desire for the current
>report. While the wait time isn't extremely long, it is longer than I
>prefer. Is there any way that I can have the user type in the number of
>data points it wants to look at and fill the equations down that number
>of rows? Removing the equations that are not needed for the specific
>data analysis significantly speeds up the calculations, but I don't
>want to have to have someone do drag the cells down manually anytime
>the analysis is changed (especially because some people using the sheet
>might not understand or know how to do that).