Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
From | Mandy fu <mandy.fu1@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: why it worked so slowly to do multiple imputation on 204 ordinal variables |
Date | Mon, 8 Mar 2010 00:18:51 -0500 |
Dear all, I met some difficulty to conduct multiple imputation for 204 ordinal categorical variables. The computer worked unbelievably slowly. I would really appreciate if someone could give me some suggestion. The data set I have includes : *450 observations totally *204 ordinal variables (after imputation these 204 items are used to calculate 5 scales, which are the dependent variables in the following regressions) have missing values * 4 independent variables (dummy variables) no missing values at all I used --ice-- and included all the 208 variables in the variable list to be imputed using ologit. I set up imputing 5 times and 10 cycles for regressions( m(5) cycle(10)). The problem is, the computer works unbelievably slowly when conducting the MI. It has taken two whole days until now and the computer is still working on it now. I cannot figure out why this assignment causes the computer worked so slowly. I don't think the computer has problem, since I have tried on three computers at different locations and all of them worked very slowly. Thanks for your time! Sincerely, Mandy Fu * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/