On Tue, Dec 14, 2010 at 10:34 AM, Annalaura <annalaura.ru...@imaa.cnr.it> wrote:
>
> Thanks a lot Uwe Ligges, I've abandoned R for a few time but now I'm working
> with it, so I've a question about the last problem that you solved: instead
> to write
> cv_1994<- idw.cv("X01_1994")
> cv_1995<- idw.cv("X01_1995")
> cv_1996<- idw.cv("X01_1996")
> cv_1997<- idw.cv("X01_1997")
> .....
> cv_2006<- idw.cv("X01_2006")
> cv_2007<- idw.cv("X01_2007")
> cv_2008<- idw.cv("X01_2008")
> can I use a more compact expression????
>
Yes. There are nicer ways to formulate the problem (and the solution),
but without access to the object all I can is a shot in the dark.
##obtain a vector of variable names
vars <- names(Tmese[, -(1:2)])
##apply the function 'idw.cv' iteratively, each time
##using a 'vars' element as the functions first argument;
##store the results in a list
res <- lapply(vars, idw.cv)
resRegards Liviu PS For more on loops and the apply family check [1]. [1] http://promberger.info/files/rnews-vectorvsloops2008.pdf > Thanks > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Saving-iterative-components-tp2553676p3086697.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. > -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to write? http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail ______________________________________________ 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.
