Dear Statalist,
I am using -bssize- from SJ 11-4 in Stata 12.1. All is well with the following three lines of commands:
bssize initial, tau(0.01) pdb(5)
set seed 1
bootstrap, reps(1326) saving(one): sureg (`sequat1') (`sequat2')(`sequat3') (`sequat4'), c(1/`k')
I can see the coefficients and their bootstrapped standard errors for all the equations I estimate.
However, when I next type the command
bssize refine using one
I get the error message
no valid variables found
r(498);
I fail to understand why I get an error. I am following the example in the SJ paper I referred to above. The set of commands I use is identical to the ones in the paper (and also to the ones in the help file).
I searched the usual sources but I couldn't find the answer. I'll be grateful if someone can help.
Murat
Dr M Genç
Department of Economics
University of Otago
P O Box 56
Dunedin 9054, New Zealand
_______________________________________
E-Mail: murat.genc@otago.ac.nz
Phone: +64 3 479 8644
Fax: +64 3 479 8174
F Web: <www.otago.ac.nz/economics>
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