Jon Wong wrote:
Hi,
I was wondering if I could get some help on importing data into a
three-dimensional array?
I am importing data from several text files:
dsdir<-"c:/documents and settings/desktop/07082008/" # path to files
dsfb1<-"07082008-DI4129b.dat" # file base name
firsthour<-13 # first hour of observation which changes from 6am to 1pm from
day to day
lasthour<-20 # last hour of observation which also changes from 6 - 8pm
for(i in firsthour:lasthour)
assign(paste("ds",i,"a",sep=""),read.delim(file=paste(dsdir,i,dsfb1,sep=""),
header=F, sep="\t", skip=5))
Always a bad idea to make such assignment, better assign into a list
"ds" with elements called a13...a20, for example.
You can easily make it 3D by unlist() it and assigning new dim()
attributes afterwards, for example.
Or perhaps even better, read each data.frame, coerce to a matrix which
you insert into the correct position of a pre-defined array().
Uwe Ligges
This code generates matrices from ds13a:ds20a containing data from the
respective text files, but I need this in a three-dimensional array for
further processing. The observation counts in the imported files vary from
one to another, and there is never a set number of files to be imported.
Any help is greatly appreciated. Thanks
Sincerely,
Jon
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