Hi
r-help-boun...@r-project.org napsal dne 21.07.2009 14:37:35:
>
>
> Graves, Gregory wrote:
> > I issued the following command to obtain the std dev for each month.
> >
> >
> >
> > psd<-numSummary(Sal, groups=month, statistics=c("sd"))
>
>
> numSummary is not in base R, is it? If not, which package? Please read
> the posting guide! Please provide reproducible code (we do not have Sal
> etc.).
>
>
>
>
> >
> >
> > which resulted in
> >
> >
> >
> >> psd
> >
> > sd n NA
> >
> > 1 6.930340 9367 2319
> >
> > 2 7.847003 10827 1008
> >
> > 3 5.962308 12988 404
> >
> > 4 3.632105 12576 384
> >
> > 5 3.328189 13030 362
> >
> > 6 10.101336 12955 5
> >
> > 7 11.759585 13071 321
> >
> > 8 10.277566 12286 1105
> >
> > 9 8.561922 12286 674
> >
> > 10 9.252890 13343 27
> >
> > 11 9.568852 12591 369
> >
> > 12 9.622851 12020 946
> >
> >
> >
> >> typeof(psd)
> >
> > [1] "list"
> >
>
>
> I guess it is a data.frame.
I too, with row names 1:12. See str(psd).
>
> Please read "An Introduction to R" or other introductory material in
> orde3r to learn how to extract vectors from data.frames or lists.
>
> In this case for both data.frames and lists:
>
> psd[[1]] for first vector etc.
>
> Uwe Ligges
>
>
>
>
>
> >
> > I want plot sd versus column 1 (month of year) of the list psd.
> >
If row.names(psd) give you character vector 1:12, you can transfer it to
numeric by as numeric. Than
plot(as.numeric(row.names(psd)), psd$sd)
can give you desired plot.
Regards
Petr
> >
> >
> > The only way I can figure out how to do this is to manually copy the
> > table into Excel, reformat, and then export that back out as a new
csv.
> > There has to be a better way?
> >
> >
> >
> >
> >
> > Gregory A. Graves
> >
> > Lead Scientist
> >
> > REstoration COoordination and VERification (RECOVER)
> >
> > Watershed Division
> >
> > South Florida Water Management District
> >
> > Phones: DESK: 561 / 682 - 2429
> >
> > CELL: 561 / 719 - 8157
> >
> >
> >
> >
> >
> >
> >
> >
> > [[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.
>
> ______________________________________________
> 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.
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