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From | "Laura R." <laura.roh@googlemail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: how to fill some gross wage missings if I have the net wage |
Date | Thu, 16 Dec 2010 17:25:31 +0100 |
One more question: > > In principle yes. you would need to make sure that the > imputations are done using information from your one > country that has missing nett (or gross I forgot) income, > but than afterwards include all the other countries. So how do I do that: I have a dataset with, let's say, 10 countries, and I would like to impute values for only 3 countries because in these, many gross wages are missing. Is there an option in -ice- like: if country==2? Or should I separate the 3 countries from the file, use ice, and then append all 3 again to the main dataset? It is probably easier to impute all missings (there are a few in the other countries aswell) of the gross income, so I would include country as an explanatory variable - but I think this would be less exact as doing it for each country separately. I am also not sure which dataset to use after -ice-. Let's say I specify the option m(5) of -ice- for generating 5 datasets, do I in the end use number 5 for my estimations? If I do ice for the 3 countries separately, I cannot append all, because the variables that are created in the ice proecedure will not be the same in all datasets, right? LR I > guess you'll need to look very carefully at the data- > structure that -ice- is supposed to leave behind, and > mimic that with the other countries. It is not impossible, > but be prepared to do a lot of reading, coding, > experimenting, and checking before that works. After that > you can use -mim- (see -findit mim-) which alows panel > data models. > > Hope this helps, > Maarten > > -------------------------- > Maarten L. Buis > Institut fuer Soziologie > Universitaet Tuebingen > Wilhelmstrasse 36 > 72074 Tuebingen > Germany > > http://www.maartenbuis.nl > -------------------------- > > > > > * > * 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/ > * * 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/