You might have used factor variables (for dummies, interactions, etc?).
Try again and use manually generated dummies or interactions.
HTH,
J.
__________________________________________
John Antonakis
Professor of Organizational Behavior
Director, Ph.D. Program in Management
Faculty of Business and Economics
University of Lausanne
Internef #618
CH-1015 Lausanne-Dorigny
Switzerland
Tel ++41 (0)21 692-3438
Fax ++41 (0)21 692-3305
http://www.hec.unil.ch/people/jantonakis
Associate Editor
The Leadership Quarterly
__________________________________________
On 18.04.2013 06:13, Qian Yu wrote:
Dear all
I encountered a problem of "xtoverid". After I input the command
"xtoverid2, noi robust", the error says that "o. operator not allowed". I
found this is very weird, since this command works for another bigger
sample, but it doesn't work for this small sample. Could anyone give me
some advice?
Many thanks in advance,
Qian
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