R help - Jul 2007 - array writing and their filenames

Hi,

I want to save a array (say, array[6,7,8]) write a cvs file. How can I do
that??? can I write in one file?

if I could not write in one file, i want to use a loop to save in different
files (in the matrix[6,7,8], should be 8 csv files), such as the filename
structure should be: file ="filename" +str(i) +"."
+"csv"

Many thanks.
Dong

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Dong GUO ?? wrote:
> Hi,
> 
> I want to save a array (say, array[6,7,8]) write a cvs file. How can I do
> that??? can I write in one file?
For array[6,7,8], you don't need a csv(!) file since it is only a 
scalar. If this is what you want, check
?write.table

But what you probably meant is how to write a three-dimensional array to 
disk. Have a look at this code:
##########
roland <- array(1:(6*7*8), dim=c(6,7,8))
roland
dump(list="roland", file = "H:\\dumpdata.R")

ls()
rm(list=ls())
ls()
source("H:\\dumpdata.R")
ls()
roland
##########

Does this help?
Roland

Many thanks to Edna and Roland.
I followed the suggestions, and it worked well.

Regards,
Dong

On 7/30/07, Edna Bell <edna.bell01@gmail.com>
wrote:
>
> > #Original 3x4x2 array
> > xb
> , , 1
>
>      [,1] [,2] [,3] [,4]
> [1,]  0.4  0.9  5.6  0.1
> [2,]  0.3  2.3  3.3  0.7
> [3,]  0.6  0.8  0.2  0.7
>
> , , 2
>
>      [,1] [,2] [,3] [,4]
> [1,]  0.4  0.9  5.6  0.1
> [2,]  0.3  2.3  3.3  0.7
> [3,]  0.6  0.8  0.2  0.7
>
> > for(i in 1:2) {
> + write(file="stuff4",t(xb[,,i]),ncol=4,append=T)
> + xx <- paste("end of array ",i,sep="")
> + write(file="stuff4",xx,append=T)
> + }
> > file.show("stuff4")
> > #All is well
> >
>
>
> On 7/29/07, Dong GUO ¹ù¶« <guo.dong99@gmail.com> wrote:
> > Hi,
> >
> > I want to save a array (say, array[6,7,8]) write a cvs file. How can I
> do
> > that??? can I write in one file?
> >
> > if I could not write in one file, i want to use a loop to save in
> different
> > files (in the matrix[6,7,8], should be 8 csv files), such as the
> filename
> > structure should be: file ="filename" +str(i) +"."
+"csv"
> >
> > Many thanks.
> > Dong
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@stat.math.ethz.ch 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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