Re: [R] Creating dataframes

From: Phil Spector <spector_at_stat.berkeley.edu>
Date: Fri, 13 May 2011 09:37:52 -0700 (PDT)

The way to do what you want is to use the split function, for example,

mydataframes = split(exmpl,exmpl$Site)

This will return a list with all the data frames.

If you don't understand why this is a better solution than creating many separate data frames, let us know what you plan to do with the data frames you're creating.

On Fri, 13 May 2011, Woida71 wrote:

> I would like to create a certain number of dataframes out of one dataframe
> where each of the dataframes
> is related to a factor. This should be possible with a loop or a function,
> as is very clumsy to do it manually
> when there are quite a lot factors.
>
> For example having a dataframe called "exmpl":
>
> Site Value
> 1 12
> 1 15
> 1 18
> 1 21
> 1 12
> 1 13
> 2 15
> 2 12
> 2 58
> 2 62
> 2 22
> 2 65
> 2 29
> 3 21
> 3 55
> 3 11
> 3 98
>
> I would like to create 3 dataframes, where
> "exmpl_01" equals:
> 1 12
> 1 15
> 1 18
> 1 21
> 1 12
> 1 13
>
> "exmpl_02" equals:
> 2 15
> 2 12
> 2 58
> 2 62
> 2 22
> 2 65
> 2 29
>
> "exmpl_03" equals:
> 3 21
> 3 55
> 3 11
> 3 98
>
> Thanks for any help.
> Walter
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Creating-dataframes-tp3520509p3520509.html
> Sent from the R help mailing list archive at Nabble.com.
>
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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.
>



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Fri 13 May 2011 - 16:42:03 GMT

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