[R] ols Error : missing value where TRUE/FALSE needed

Frank E Harrell Jr f.harrell at vanderbilt.edu
Thu Mar 15 01:58:08 CET 2007


Charles Evans wrote:
> I have installed Hmisc and Design.  When I use ols, I get the  
> following error message:
> 
> Error in if (!length(fname) || !any(fname == zname)) { :
> 	missing value where TRUE/FALSE needed
> 
> The model that I am running is:
> 
>  > ecools <- ols(eco$exp ~ eco$age + eco$own + eco$inc + inc2, x=TRUE)

ecools <- ols(exp ~ age + own + inc + inc2, data=eco, x=TRUE)

Watch out for variables named exp but probably OK.

Frank Harrell

> 
> I have tried several other combinations of arguments that take TRUE/ 
> FALSE values, but no luck.
> 
> Ultimately, I am trying to calculate robust standard errors.
> 
> Any help would be appreciated.
> 
> Charles Evans
> Executive Director
> Free Curricula Center
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 


-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University



More information about the R-help mailing list