R help - Apr 2010 - as.environment Error

Dear R community,

I have a problem with assign:

<snip>
	      for ( iii in 1:dim(ref_df)[2] )
	      {
		    ret <<-
ref_df[,iii][names(single_string[ii])]*(single_count/sum(ref_df[,iii]))
		   
assign(paste("expected_sing_ref",iii,sep=""),c(get(paste("expected_single_ref",iii,sep=""))),
ret)
	      }
<snap>

The Error:
Error in as.environment(pos) : invalid argument

Has anybody an idea, how to solve this error ?

Thanks in advance,
Georg

I don't know what is specifically causing the error, but I think that you
will be happier in the long run (and probably short run) if you abandon the use
of assign and <<- and instead use lists.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of mailing-list at gmx.net
> Sent: Friday, April 30, 2010 11:21 AM
> To: r-help at r-project.org
> Subject: [R] as.environment Error
> 
> 
> Dear R community,
> 
> I have a problem with assign:
> 
> <snip>
> 	      for ( iii in 1:dim(ref_df)[2] )
> 	      {
> 		    ret <<-
> ref_df[,iii][names(single_string[ii])]*(single_count/sum(ref_df[,iii]))
> 
>
assign(paste("expected_sing_ref",iii,sep=""),c(get(paste("expected_sing
> le_ref",iii,sep=""))), ret)
> 	      }
> <snap>
> 
> The Error:
> Error in as.environment(pos) : invalid argument
> 
> Has anybody an idea, how to solve this error ?
> 
> Thanks in advance,
> Georg
> 
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