Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: factor variables may not contain negative values
From
malay biswas <[email protected]>
To
[email protected]
Subject
st: factor variables may not contain negative values
Date
Fri, 16 Aug 2013 16:22:41 +0530
Dear All,
Could please tell meas to how stata operates in the following situation.
I have data set containing codes for missing data and other contingencies.
Yes= 1
No = 2
Do Not Know = -9 (Minus)
Still in Progress= -6(Minus)
When conducting interaction with other variables having similar coding
arrangements, I get stata notification that "factor variables may not
contain negative values."
Could you please tell me what is happening?
Thank you for your continued support.
Regards
Malay
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/