First off, terminology: not variables, but macros.
Let's play "you are Stata". What do you see?
You see
di display command
" open quote
$ global macro name coming
gooddaysY global macro name?
no such name, oh well show nothing
` local macro name coming
y local macroname?
yes, show it
' end of local macro name
etc.
OK, you're not Stata any more. (It's hard work, you have
to go so slowly....)
You need { } to tell Stata how your stuff is to be parsed.
forval y = 1980(1)2006 {
forval m = 1(1)12 {
di "${gooddaysY`y'M`m'} "
}
}
That way stuff is nested properly. This is in the manual
somewhere.
Nick
[email protected]
Danielle H. Ferry
> I want to define a global variable whose name contains 2
> local variables (b/c
> I am creating it w/in nested loops over year & month):
>
> forval y = 1980(1)2006 {
> forval m = 1(1)12 {
> global gooddaysY`y'M`m' = "stuff"
> di "$gooddaysY`y'M`m'"
> }
> }
>
> Suppose we are in the y = 1980 & m = 1 loop. Then the result
> of the -display-
> is: 1980M1. I am guessing this has something to do w/ the
> quotes. But I don't
> know how to fix it. Any ideas?
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
