What you are trying to do is possible,
I think, as shown by this toy
program dferry
version 9
sysuse auto, clear
count
if r(N)>50 {
local lagif "foreach l in 2 4"
}
else local lagif "forval l = 1(1)4"
`lagif' {
di `l'
}
end
or a similar one with semi-colons as delimiters.
But I'd pontificate that it is not especially good
style. In essence, you have to branch any way,
so what you want to do could well be set out more
transparently. So, I agree with Scott.
Here is a version. I don't understand all of what
you want, but I'd guess you want
L`l'.
rather than
L`l'
Note that repeated -tokenize-s are not needed
in the last section. You can just loop over the
contents of `restx'.
program get_yx
version 9
args y r
use time region using "$remach/data/regData" ///
if time>=q(1998-1) & region==`r', clear
count
local small = r(N) < 900
use using "$remach/pooledr/reg_unitroot" if region==`r', clear
levelsof diffvar if var=="`y'", local(y) c
levelsof diffvar if xy=="x", local(X) c
global y "`y'"
global X
tokenize `X'
local firstx `1'
mac shift
local restx `*'
if `small' {
foreach l in 2 4 {
global X "$X L`l'`firstx'"
}
else {
forval l = 1/4 {
global X "$X L`l'`firstx'"
}
}
foreach v in `restx' {
foreach l in 2 4 {
global X "$X L`l'`v'"
}
}
end
Nick
[email protected]
Scott Merryman
> I am not sure why Stata doesn't recognize the final closing
> bracket, but a
> simpler example returns:
>
> . sysuse auto,clear
> (1978 Automobile Data)
>
> . local lagif "foreach l in 2 4"
>
> . `lagif' {
> foreach command may not result from a macro expansion
> interactively or in do
> files
> r(198);
>
>
> Since -foreach- cannot result from a macro expansion one way
> around this
> would be to wrap the -foreach- and -forv- in -if- statements.
>
> For example:
>
> count
> if r(N) > 900 {
> local lagif "l in 2 4"
> local tag =1
> }
> else {
> local lagif "l = 1(1)4"
> local tag =2
> }
>
> if `tag' == 1 {
> foreach `lagif' {
> //global X...
> }
> }
>
> if `tag' == 2 {
> forv `lagif' {
> //global X...
> }
> }
dferry
> > I've pasted in a program I wrote, below. As shown, it works
> just fine.
> > However, if I change the lines that say:
> > foreach l in 2 4 {;
> >
> > to:
> > `lagif' {;
> >
> > then, I get an error in which Stata doesn't recognize the
> final closing
> > bracket in the program. I.e., I get the following error msg:
> > unrecognized command: } invalid command name
> > r(199);
> >
*
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