Dear R-helpers,
I am very new to R and trying to run the conditional logit model using
"clogit " command.
I have more than 4000 observations in my dataset and try to predict the
dependent variable from 14 independent variables. My command is as follows
clmtest1 <-
clogit(Pin~Income+Bus+Pop+Urbpro+Health+Student+Grad+NE+NW+NCC+SCC+CH+SE+MRD+strata(IDD),data=clmdata)
However, it produces the following errors:
Error in fitter(X, Y, strats, offset, init, control, weights = weights, :
NA/NaN/Inf in foreign function call (arg 6)
In addition: Warning messages:
1: In Surv(rep(1, 4096L), Pinmig) : Invalid status value, converted to NA
2: In fitter(X, Y, strats, offset, init, control, weights = weights, :
Ran out of iterations and did not converge
I search the error message from R forums but it does not say anything
for Conditional Logit Model.
Please check for me what it says and what should I do to solve it.
Thanks a lot for your help
Hien Nguyen
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