[R] Reshape

Toby Gass tobygass at warnercnr.colostate.edu
Tue Sep 28 04:55:16 CEST 2010


That does work, thank you.  I didn't understand that the "fame" 
column would be the time varying column.

Toby

On 28 Sep 2010 at 12:47, Michael Bedward wrote:

> Hi Toby,
> 
> I think this should work...
> 
> reshape(dat, v.names=c("weight"), idvar=c("valley", "plot", "trt"),
> timevar="fame", direction="wide")
> 
> Michael
> 
> 
> On 28 September 2010 12:17, Toby Gass <tobygass at warnercnr.colostate.edu> wrote:
> > Hello, helpeRs,
> >
> > I've been trying, unsuccessfully, to change a dataframe from long to
> > wide format using reshape (the original).  I would appreciate it if
> > someone could demonstrate the correct syntax.  The script below will
> > create a toy example.  The new wide data should have a column name
> > for each unique entry in the "fame" column.   Under each column
> > should be either the appropriate weight or na, if there is no match.
> > Thus, the end product should have column names:
> >
> > valley  plot   trt   18w   16iso  12:0, etc.
> >
> > Here is the toy script for the starting data in long form:
> >
> > dat <- data.frame(fame =  gl(4,1,10, labels = c( "18w", "16iso",
> > "12:0", "16w")), valley = gl(2,6,10, labels = c("H", "M")), plot =
> > gl(5, 2, 10), trt = gl(2,1,10, labels = c("e", "g")), weight =
> > 1000*runif(10, 0, 1))
> >
> > Thank you for your assistance.
> >
> > Toby
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > 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.
> >
>



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