The reason this fails is that
`x1' `x2' `x3'
is not a varlist at the time
you invoke the loop. They are
just names you have set aside for
temporary variables. In fact,
you are not even obliged to make
use of them.
I would just define each variable
once round the loop:
forval i = 1/3 {
tempvar x`i'
gen `x`i'' = uniform()
}
Nick
[email protected]
Mike Lacy
> 2) Next, I have occasion to use these tempvars in loops.
>
> As a simplifed,idealized code fragment to illustrate a confusion
> I have experienced, consider
>
> tempvar x1 x2 x3
> foreach x of varlist `x1'-`x3' {
> gen `x' = rand()
> }
>
> This generates an error message indicating that one of the
> temporary variables is "not found", unless I assign values
> to each of `x1'-`x3' by brute force prior to running the loop
> and then do a
> -replace- rather than -gen- in the loop.
>
> Clearly, I am missing some piece of understanding here as well.
> I guess the question would be:
> How to use a list of temporary variables in a loop if those temporary
> variable do not yet have assigned values?
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