To expand a little:
local num_vars r(varlist)
will just put the literal text "r(varlist)" in your macro. It won't put
the contents of r(varlist) in your macro.
Also
local num_vars r(varlist)
foreach var of local `num_vars' {
is equivalent to
foreach var of local r(varlist) {
which doesn't satisfy -foreach- because r(varlist) is not the name of a
local macro.
It is true that the error messages in each case are not illuminating!
Nick
[email protected]
Maarten buis
try:
foreach var of varlist `r(varlist)' {
That is: adding a "`" and a "'" around r(varlist)
Jennifer S. Earl
> In the middle of a program I am working on, I need to set a bunch of
> variables to missing, some of which are numeric and some of which are
>
> string. Since the replace command is sensitive to numeric or string,
> I need
> to do separate foreach loops.
>
> Here is what I have tried:
>
> ds , has(type numeric)
> local num_vars r(varlist)
> foreach var of local num_vars {
> replace `var'=. if `var'_error==1
> }
>
> ds , has(type string)
> local string_vars r(varlist)
> foreach var of local string_vars {
> replace `var'="" if `var'_error==1
> }
>
> Unfortunately, when I try this, I get the following error:
> time-series operators not allowed
> r(101);
>
> If I do instead (in case if is my foreach line that is giving me
> problems):
> ds , has(type numeric)
> local num_vars r(varlist)
> foreach var of local `num_vars' {
> replace `var'=. if `var'_error==1
> }
>
> I get the following error:
> { required
> r(100);
>
> But, the puzzling part is that I see the right list of numeric
> variables
> displayed if I do:
>
> ds , has(type numeric)
> local num_vars r(varlist)
> display `num_vars'
>
> So, I know I am fetching the right list, I am just not able to
> operate on
> it in the foreach loop.
>
> I have tried other ways of selecting off just the numeric variables
> and
> just the string and none are working.
>
> Any suggestions? Maybe it is late and I missing something obvious?
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