Re: [R] pivoting - summing up factors

From: jim holtman <jholtman_at_gmail.com>
Date: Wed, 07 May 2008 15:12:58 -0400

Is this what you want:

> x

  location plant

1        x     a
2        x     b
3        x     b
4        y     b
5        y     b
6        y     a
7        z     a
8        z     a

> table(x$plant,x$location)

    x y z
  a 1 1 2
  b 2 2 0
>

On Wed, May 7, 2008 at 2:56 PM, juanita choo <juanitachoo_at_gmail.com> wrote:
> Hi
> I would like to know how to pivot a table that will sum the number of plants
> (a or b) for each location (x,y,z)
> I have read on the listserve similar questions but which involve summing up
> numbers rather than factors. I have also read about the R package reshape
> on the listserve but wanted to know if there's a way to do it easily without
> the package
> Thanks for the help!
>
> location plant
> x a
> x b
> x b
> y b
> y b
> y a
> z a
> z a
>
> into a table like this
>
>
> x y z
> a 1 1 2
> b 2 2 0
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help_at_r-project.org mailing list
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> PLEASE do read the posting guide 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 you are trying to solve?

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Received on Wed 07 May 2008 - 19:57:27 GMT

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