Re: [R] concatenate data frame

From: Don MacQueen <macq_at_llnl.gov>
Date: Fri 09 Dec 2005 - 03:17:00 EST

Having no idea what the object "no" is, or what the object "off_set" is, it is difficult to understand what you are trying to do. Perhaps if you substituted simple numbers in the example, such as

    tab[ 1:5, 15]

it would be easier to understand.

Perhaps what you really want is cbind() or rbind(), not c().

Probably, it would be better to use ncol(tab) rather than length(tab).

-Don

At 6:38 PM +0100 12/7/05, herodote@oreka.com wrote:
>hi all
>
>Here is a small part of my code:
>
>tab_tmp<-tab[1:(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])),length(tab)];
>
>tab_tmp1<-tab[(no[off_set[i-1]+1]+(no[off_set[i]+1]-no[off_set[i-1]+1])):length(TotalFillTimeHours),length(tab)];
>
>tab<-c(tab_tmp,tab_tmp1);
>attach(tab);
>
>Here is the output:
>Error in attach(tab) : attach only works for lists and data frames
>Execution halted
>
>
>How do i concatenate them in order to keep the data frame structure?
>
>
>thks for your help
>guillaume
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA

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Received on Fri Dec 09 03:25:20 2005

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