SO5032: Lab Materials

Load this BHPS excerpt:

use http://teaching.sociology.ul.ie/so5032/bhpsqual.dta

vote has four categories. Examine bivariate relationships between vote and some of the other variables, by cross-tabulating vote and any categorical variables, or looking at how the mean value of quantitative variables differ by vote.

Then search for a multinomial logistic regession that makes sense: mlogit vote indvars….

It is better to have a base category that is easily interpretable, and the default here will use the biggest category ("Other/nationalist"). To avoid this, use the baseoutcome(1) option, which will force category one as the base. Use the likelihood-ratio test for each variable, since there are three times as many parameters as usual.

Use predict to generate predicted values (note you have to supply one variable name to hold the prediction for each category). How often is the most probable predicted category the same as the observed one?