R help - Mar 2007 - ols Error : missing value where TRUE/FALSE needed

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)

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]]

I think that inc2 should be eco$inc2 in your call.

If not let me know and I will dig deeper.

----- Original Message ----- 
From: "Charles Evans" <cevans at freecurricula.org>
To: <r-help at stat.math.ethz.ch>
Sent: Wednesday, March 14, 2007 12:48 PM
Subject: [R] ols Error : missing value where TRUE/FALSE needed

>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)
>
> 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.
>

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