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st: too many macros?!


From   Rufus Peabody <rufus.peabody@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: too many macros?!
Date   Wed, 27 Aug 2008 22:55:47 -0700

I ran the following code, but got the error message "too many macros". What I'm trying to do is create a macro that includes the regressors to use for that specific time through the loop. It includes a different number of regressors each time. For each "tm_gmid_yr" I'm looping through, I want the regressors to be all lags possible within that year (by week--so L`i'., L`i+7'.,..., where i is based on the remainder when dividing "tm_gmid_yr" by 7 ). Anybody have any idea how to get around this problem?

local mark=mark
forvalues year=2000/2007 {
forvalues tm_gmid_yr=7/156 {
foreach v of local ratevars {
cap gen `v'_norm_pred=.
cap gen `v'_norm_pred2=.
tempvar pred1 pred2
local regressors "lweek_`v'_norm"
local x=mod(`mark',`tm_gmid_yr')
local regressors "`"`regressors' L`x'.lweek_`v'_norm"'"
local y=floor(mark/7)
while(`y'>=1) {
local num=(7*`y')+`x'
local regressors "`"`regressors' L`num'.lweek_`v'_norm"'"
local y=`y'-1
}
regress nweek_`v'_norm `regressors' if tm_gmid_yr<=tm_gmid_yr+7 & tm_gmid_yr>=tm_gmid_yr-7 & year<=`year'
predict `pred1' if year==`year' & tm_gmid_yr==`tm_gmid_yr'
regress nweek_`v'_norm `regressors' if year<=`year'
predict `pred2' if year==`year' & tm_gmid_yr==`tm_gmid_yr'
replace `v'_norm_pred=`pred1' if year==`year' & tm_gmid_yr==`tm_gmid_yr'
replace `v'_norm_pred2=`pred2' if year==`year' & tm_gmid_yr==`tm_gmid_yr'
drop `pred1' `pred2'
}
}
}
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