[R] Break up a data frame

jim holtman jholtman at gmail.com
Thu Mar 20 10:45:58 CET 2008


Is this close to what you want?

> x <- read.table('clipboard')

> x
   V1         V2    V3  V4
1 xyz 01/03/2007 15.25 USD
2 xyz 01/04/2007 15.32 USD
3 xyz 01/02/2008 23.22 USD
4 abc 01/03/2007 45.20 EUR
5 abc 01/04/2007 45.00 EUR
6 abc 01/02/2008 68.33 EUR
> x.m <- melt(x)
Using V1, V2, V4 as id variables
> x
   V1         V2    V3  V4
1 xyz 01/03/2007 15.25 USD
2 xyz 01/04/2007 15.32 USD
3 xyz 01/02/2008 23.22 USD
4 abc 01/03/2007 45.20 EUR
5 abc 01/04/2007 45.00 EUR
6 abc 01/02/2008 68.33 EUR
> cast(x.m, V2~V4)
          V2   EUR   USD
1 01/02/2008 68.33 23.22
2 01/03/2007 45.20 15.25
3 01/04/2007 45.00 15.32
>


On Thu, Mar 20, 2008 at 1:22 AM, Ravi S. Shankar <ravis at ambaresearch.com> wrote:
> Hi R users,
>
>
>
> I have a dataframe in the below format
>
>            xyz       01/03/2007        15.25                USD
>
>            xyz       01/04/2007        15.32                USD
>
>            xyz       01/02/2008        23.22                USD
>
>            abc       01/03/2007        45.2                  EUR
>
>            abc       01/04/2007        45.00                EUR
>
>            abc       01/02/2008        68.33                EUR
>
>
>
> I want to change the above data into the below format
>
>
>
>
>
>            xyz       01/03/2007        15.25                USD     abc
> 01/03/2007        45.2                  EUR
>
>            xyz       01/04/2007        15.32                USD     abc
> 01/04/2007        45.00                EUR
>
>            xyz       01/02/2008        23.22                USD     abc
> 01/02/2008        68.33                EUR
>
>
>
> Any help would be welcome
>
>
>
> Thank you
>
>
>
> Ravi
>
>
>
>
>
> This e-mail may contain confidential and/or privileged i...{{dropped:13}}
>
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>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?



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