[R] p values when using rlm

From: John Sorkin <jsorkin_at_grecc.umaryland.edu>
Date: Sun 27 Mar 2005 - 11:36:19 EST


R 2.0.1
Linux  

I am using rlm() to fit a model, e.g. fit1<-rlm(y~x). My model is more complex than the one shown.  

When I enter summary(fit1)
I get estimates for the model's coefficients along with their SEs, and t values, but no p values. The p value column is blank. Similarly, when I enter anova(fit1) I get DF, Sum Sq, Mean Sq, but the column for F value and Pr(>F) are blank.  

Any suggestions that will allow me to get the p values for summary, the F and p values for anova?
Thanks,
John    

John Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
Baltimore VA Medical Center GRECC and
University of Maryland School of Medicine Claude Pepper OAIC  

University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524  

410-605-7119
- NOTE NEW EMAIL ADDRESS:
jsorkin@grecc.umaryland.edu

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