[R] Remove Indeterminate Level

Neil Leonard nleonard at tartarus.uwa.edu.au
Thu Oct 7 16:13:58 CEST 2004


I have imported some data to R from stata and my factor variables have 
an Indeterminate level which I don't really want. For example the 
variable sex has the levels Male, Female and Indeterminate. There are 
no 'Indeterminate' values in the data. Can somebody tell me how to get 
rid of this level as it restricting my cox ph model.


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