Re: [R] append data

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Subject: Re: [R] append data
ben@zoo.ufl.edu
Date: Sat 27 Jan 2001 - 05:52:07 EST 

Message-ID: <Pine.LNX.4.30.0101261440420.8073-100000@bolker.zoo.ufl.edu>

rbind(as.matrix(rawlist),matrix(0,ncol=3,nrow=4))

 will do it, although depending on what you're doing next you may want to
turn the result back into a dataframe after attaching the zeros.

  I can't quite figure out the logic that says why

rbind(rawlist,matrix(0,ncol=3,nrow=4))

(i.e., leaving rawlist as a dataframe) leads to a data frame with only one
row of zeros appended.

  Ben Bolker

On Fri, 26 Jan 2001, Yu-Ling Wu wrote:

> Hi,
>
> I read a dataset into R. It looks like this:
>
> > rawlist
> x1 x2 x3
> 2 12 64
> 5 12 42
> 5 9 42
> 18 14 535
> 26 23 751
>
> Now I want to append some values of zero to let it
> look like this:
>
> x1 x2 x3
> 2 12 64
> 5 12 42
> 5 9 42
> 18 14 535
> 26 23 751
> 0 0 0
> 0 0 0
> 0 0 0
> 0 0 0
>
> How to do this?
>
> Thanks,
> Yu-Ling Wu
>
>
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