You need to declare the variable 'variable' as being string in your postfile statement, eg
postfile `out' str20 variable case sd1 ...
(NB you may need to increase the 20 above to be as large as your longest variable name)
David
david@icnarc.org
-----Original Message-----
From: VISINTAINER PAUL [mailto:PAUL_VISINTAINER@nymc.edu]
Sent: 22 November 2004 12:59
To: statalist@hsphsun2.harvard.edu
Subject: st: postfile
In the following program, I write the output of several t-tests to a file. Is it possible to post the name of the variable being tested to such a file? When I include ("`var'"), I get the error below. If I post (`var'), I only get a number.
tempname out
. postfile `out' variable case sd1 n1 control sd2 n2 using outfile, replace
. foreach var of varlist igf bp3 {
. 2. qui ttest `var', by(case)
3. post `out' ("`var'") (r(mu_2)) (r(sd_2)) (r(N_2)) (r(mu_1)) (r(sd_1)) (r(N_1))
4. }
type mismatch
post: above message corresponds to expression 1, variable variable
r(109);
Any suggestions would be appreciated.
Thanks,
Paul Visintainer
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