[R] Singular information matrix in lrm.fit

[useR]

Hi R helpers,



I'm fitting large number of single factor logistic regression models
as a way to immediatly discard factor which are insignificant.
Everything works fine expect that for some factors I get error message
"Singular information matrix in lrm.fit" which breaks whole execution
loop... how to make LRM not to throw this error and simply skip
factors with singularity problem...


alternative solution also appreciated.


Thanks