Four comments:
1. Yes, it is being incremented by
local ++i
2. Each time round the loop, however, you are setting it
back to 1. Thus your macro goes 1, 2, 1, 2, ...
and you are repeatedly instructing a -save- of d1.dta,
but with different contents.
3. Thus for what you want, the initialisation should
be moved outside the loop.
local i = 1
foreach var of varlist I7-Q7 {
use edata, clear
keep if `var' == 1
bysort id (dov): gen etime = dov - dov[_n-1]
keep if etime > 14
drop etime
save d`i', replace
local ++i
}
4. But your dataset names might as well be more transparent.
Thus your macro -i- is dispensable.
foreach var of varlist I7-Q7 {
use edata, clear
keep if `var' == 1
bysort id (dov): gen etime = dov - dov[_n-1]
keep if etime > 14
drop etime
save d`var', replace
}
Nick
[email protected]
Raphael Fraser
> I have 12 variables I7-Q7. I would like to run the following code for
> each variable in the varlist and save the result d1, d2, ..., d12.
> However, it appears that the macro i is not being incremented. Does
> any body know why?
>
> My thought is each time foreach loops over a variable the macro i
> should be incremented.
>
> foreach var of varlist I7-Q7 {
> use edata, clear
> keep if `var' == 1
> bysort id (dov): gen etime = dov - dov[_n-1]
> keep if etime > 14
> drop etime
> local i = 1
> save d`i', replace
> local ++i
> }
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