The point is that without the ` ' indicating a local macro, Stata looks
for a variable with the name (or abbreviation) varlist, but can't find
it. Indeed, that's precisely what it told you.
Nick
[email protected]
Nick Cox
Your claim is incorrect.
replace varlist
should be
replace `varlist'
In addition,
if
should be
[if]
although that's not biting you.
Nick
[email protected]
odongo kodongo
I am trying to run the following program, which in all respects, is
similar
to the illustration given in the "Help GMM" of Stata 11/SE.
program tryagain
version 11
syntax varlist if, at(name) rhsvar(varlist) lhsvar(varlist)
quietly {
tempvar xb
generate double `xb' = 0 `if'
local i = 1
foreach var of varlist `rhsvar' {
replace `xb' = `xb' + `at'[1,`i']*`var' `if' // coefficients
local `++i'
}
replace `xb' = `xb' + `at'[1,`i'] `if' // constant
term
replace varlist = `lhsvar' - `xb' `if' // model's
residuals
}
end
When I run it, I get the following error messages:
error calling tryagain at initial values
variable varlist not found
r(111);
end of do-file
r(111);
Going through the archives, I realized that another user, Laszlo Sandor,
had
a more or less similar problem on October 29, 2009. However, the
responses
he received do not seem useful in getting me out of my predicament.
Can someone help me discover the source of the error?
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