Dear All,

 

I am doing a parametric survival analysis with:

fit <- survreg(Surv(xyz$start, xyz$stop, xyz$event, type="interval") ~
1, dist='loglogistic')

 

At this point I do not want to look into covariates, hence the '~1' as
model formulation. As event types I have exact, interval, and right
censored lifetime data. Everything works fine.

 

For reasons that are not important here now, I wanted to look for the
effects of 'randomly' re-allocating event types to the lifetime data.
However, when I did this (keeping everything else the same), R returned
this error message:

Error in survreg.fit(X, Y, weights, offset, init = init, controlvals =
control,  : NA/NaN/Inf in foreign function call (arg 9)

 

I am puzzled by this error message and can't find anything in the
archives etc.

 

Your input would be greatly appreciated.

 

Best regards, Michael

 

 

Michael Drescher

Ontario Forest Research Institute

Ontario Ministry of Natural Resources

1235 Queen St East

Sault Ste Marie, ON, P6A 2E3

Tel: (705) 946-7406

Fax: (705) 946-2030

 


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