[R] Stacking data

David Winsemius dwinsemius at comcast.net
Thu Jan 29 18:33:36 CET 2009


What does str(zz) tell you?

-- 
David Winsemius
On Jan 29, 2009, at 10:31 AM, Amit Patel wrote:

> Hi
>
> I have data in the format below
>
>      Age            V1       V2      V3       V4
>    23646         45190 50333 55166 56271
>    26174         35535 38227 37911 41184
>    27723          25691 25712 26144 26398
>
> and would like to sort it as follows
>
>                  Age      values     ind
>                 23646    45190    V1
>                26174   35535      V1
>                27723    25691     V2
>               27193    30949      V2
>
> But i have 41 columns (age column  +  40 individuals)
> I have the following script but an error is thrown up
> can anyone help, where am i going wrong
>
> zz <- read.csv("Filename.csv",strip.white = TRUE)
> zzz <- cbind(zz[gl(nrow(zz), 1, 40*nrow(zz)), 1], stack(zz[, 2:41]))
>
> ERROR MESSAGE
> Error in data.frame(..., check.names = FALSE) :
>   arguments imply differing number of rows: 3789080, 0
>
>
>
>
>
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>
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