[email protected]
>
> Can the -foreach- command be nested? Stata crashes if I
> try to put a foreach inside another foreach.
>
> for example:
>
> local N "0 5 10";
> local Y "y1 y2 y3";
> foreach n in `N'
> {foreach y in `Y'
> {reg `y' X if t>`n' } };
Yes indeed. The errors here lie mainly in the placing of the
left brace. Stata's not terribly rigid about where things
should go, but it's picky here. This should work:
local N "0 5 10"
local Y "y1 y2 y3"
foreach n in `N' {
foreach y in `Y' {
reg `y' X if t>`n'
}
}
Note that if you choose to use ; as a
delimiter you must abide by that decision.
Nick
[email protected]
P.S. we're now into pure style, but I
would recommend something more like
foreach n in 0 5 10 {
foreach y in y1 y2 y3 {
reg `y' X if t > `n'
}
}
In this example, the local macros N and Y add nothing
but indirection. If you revisit your code, the
version above will be easier to read and understand,
I suggest.
Of course, your real example may differ completely
in this respect.
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