R help - Jan 2011 - Extract Crawley´s datasets and pack them into a new package

Dear all,

I have a seemingly easy question but couldn?t find a solution so far:

I?d like to have all datasets from Crawley?s "R Book" in an own
package, so that I can easily access them.

Let?s assume they are all saved on C: in the following directory:

setwd("C:\\Crawleydata")

Now I am loading all datasets using lapply:

###

LL<-list.files("C:\\Crawleydata",pattern = "\\.txt$")
LL2<-as.list(LL)
names(LL2)<-LL

LL3<-lapply(LL2,function(x)try(read.table(x,header=T,sep="\t")))
###

So far, so good; now that I have all files in LL3, how do I move them out to the
"data" path in a newly created library?

I know that "package.skeleton()" should do the job, but somehow I got
stuck here...

Many thanks for your help!

Best wishes
Christoph

[using R 2.12.1 on Windows XP]





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Dr. rer.nat. Christoph Scherber
University of Goettingen
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Homepage http://www.gwdg.de/~cscherb1

More or less untested without using package.skeleton after preparing the 
package directories:

datapath <- "c:/packagename/data"
within(LL3,
for(i in ls()) save(list=i, file=file.path(datapath, paste(i,
".RData",
sep=""))))


or with package.skeleton:

package.skeleton("packagename", path="c:/",
environment=as.environment(LL3))

Best,
Uwe Ligges



On 14.01.2011 15:32, Christoph Scherber wrote:
> Dear all,
>
> I have a seemingly easy question but couldn?t find a solution so far:
>
> I?d like to have all datasets from Crawley?s "R Book" in an own
package, so that I can easily access them.
>
> Let?s assume they are all saved on C: in the following directory:
>
> setwd("C:\\Crawleydata")
>
> Now I am loading all datasets using lapply:
>
> ###
>
> LL<-list.files("C:\\Crawleydata",pattern =
"\\.txt$")
> LL2<-as.list(LL)
> names(LL2)<-LL
>
>
LL3<-lapply(LL2,function(x)try(read.table(x,header=T,sep="\t")))
> ###
>
> So far, so good; now that I have all files in LL3, how do I move them out
to the "data" path in a newly created library?
>
> I know that "package.skeleton()" should do the job, but somehow I
got stuck here...
>
> Many thanks for your help!
>
> Best wishes
> Christoph
>
> [using R 2.12.1 on Windows XP]
>
>
>
>
>
>
>
>
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