thanks for that ista
actually i want to break this into maybe three different data sets with each
of the 3 kinds of sugarcane...
it would be better if i could have this in one data set but if someone could
tell me how i can run descriplitive statistics on each of the groups
separately..
i would need to melt and cast for that right?
On Thu, Mar 10, 2011 at 8:46 PM, Ista Zahn <iz...@psych.rochester.edu>wrote:
> Hi Muzna,
> If I understand your question, it's not really about melting or
> casting, but about re-ordering. Try this:
>
> canefile <- canefile[order(canefile$value), ]
>
> see ?"[" and ?order
>
> HTH,
> Ista
>
> On Thu, Mar 10, 2011 at 2:20 PM, Muzna Alvi <muzna.a...@gmail.com> wrote:
> > I have a dataset that is based on crop output for a single crop
> > *sugarcane*...but
> > each observation is further subdivided into 3 kinds of sugarcane
> > i have read the file and have also used melt it to sort it on the
> > basis of *crop
> > group* using
> >
> > melt(sugarcane, m=c("Crop_group")) -> canefile
> >
> > this is how it has cast the data
> >
> > variable value
> > 1 Crop_group Sugarcane (first ratoon)
> > 2 Crop_group Sugarcane (planted crop)
> > 3 Crop_group Sugarcane (planted crop)
> > 4 Crop_group Sugarcane (second ratoon)
> > 5 Crop_group Sugarcane (first ratoon)
> > 6 Crop_group Sugarcane (planted crop)
> >
> >
> > now i need to *cast *the data so that i can have each of the 20 odd
> > variables sorted according to the 3 subdivisions under *Crop_group *ie
> first
> > ratoon), second ratoon etc etc..
> >
> > i tried using
> >
> > cast (canefile, ~value) -> canefile
> >
> > but it said "Aggregation requires fun.aggregate: length used as default"
> >
> > i want to cast it on all the 20 variables and sort it on the basis of
> first
> > ratoon, second ratoon and planted crop
> >
> > How i do my CAST command?
> >
> > I hope my question is clear...thanks in advance
> >
> > *
> > *
> > *
> > *
> > --
> > --
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@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.
> >
>
>
>
> --
> Ista Zahn
> Graduate student
> University of Rochester
> Department of Clinical and Social Psychology
> http://yourpsyche.org
>
--
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