R help - Nov 2006 - correlation argument for lmer?

Dear r-help members,

Can lmer() in the lme4 package fit models that have a specified within-group
correlation structure, as provided, for example, by the correlation argument
to lme() in the nlme package?

Thanks,
 John

--------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox

Not currently. 
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of John Fox
> Sent: Thursday, November 02, 2006 9:51 AM
> To: 'R-help'
> Subject: [R] correlation argument for lmer?
> 
> Dear r-help members,
> 
> Can lmer() in the lme4 package fit models that have a 
> specified within-group correlation structure, as provided, 
> for example, by the correlation argument to lme() in the nlme package?
> 
> Thanks,
>  John
> 
> --------------------------------
> John Fox
> Department of Sociology
> McMaster University
> Hamilton, Ontario
> Canada L8S 4M4
> 905-525-9140x23604
> http://socserv.mcmaster.ca/jfox
> 
> ______________________________________________
> 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.
>

Dear r-helpers:

Any ideas how to avoid problem described below?
I am having the same problem when I run R remotly (not from cgi script);
somehow png device wants to talk to X11 and X11 complains...

Best regards,
Ryszard

error msg from batch R process (Linux/R-2.4.0) (executed on Apache server 
from cgi script):

Error in X11(paste("png::", filename, sep = ""), width,
height, pointsize,
 :
        unable to start device PNG
In addition: Warning message:
unable to open connection to X11 display ''
Execution halted
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