st: Question using macro in loop

[Tak-wai Chau <tchau@troi.cc.rochester.edu>]

Hi,

I would like to ask something about using macro in loops. I have tried 
to find it in the archive and FAQ for some time but I don't get it. 
Sorry if I have overlooked some obvious things.

I would like to update certain variables according to the value taking 
by a particular variable, and this value differs by observations. Then 
what I should do?

For example, if I want to transfer value of non-missing variables from 
V1-V10 to W1-W10. But I don't want to variables carrying missing value 
between. I use s to count the number of non-missing values I have 
covered at that point.

The following is what I think of but doesn't work.

s=1
forvalues i=1/10 {
	local s1=s
	replace w`s1'=v`i' if v`i'<.
	replace s=s+1 if v`i'<.
}

I know the problem is at the local statement.

What should I do?

Thank you very much!

Tak Wai Chau
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