THX,

it's working now.

On Wed, May 12, 2010 at 13:54, jim holtman <jholt...@gmail.com> wrote:

> Have you tried:
>
> combined[,19] <- paste(combined[,19], combined[,20], sep=' ')
>
> On Wed, May 12, 2010 at 4:40 AM, Assa Yeroslaviz <fry...@gmail.com> wrote:
>
>> Hello,
>>
>> I'm trying to paste two columns of a matrix
>> GB_ACC    GENE    GENE_SYMBOL
>> NM_010657    NM_010657
>> NM_027162    NM_027162
>> NM_198863    NM_198863
>> NM_010727    NM_010727
>>
>> These two column are a part of a 41,000 x 26 matrix.
>>
>> I wanted these two column to be pasted into one (the firstone, GB_ACC). I
>> tried to do it with a for loop, but it takes ages to finish:
>> for( i in 1:length(combined[,15])){
>>    combined[i,19]<- paste(combined[i,19], combined[i,20], sep = " ")
>> }
>>
>> Does anyone has a better idea?
>> I tried to do it with the apply function, but I'm getting an error message
>> that paste(...) is not a function.
>>
>> THX
>>
>> Assa
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html<http://www.r-project.org/posting-guide.html>
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem that you are trying to solve?
>

        [[alternative HTML version deleted]]

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