Hi
Best way is to put those files in one directory and start R from this directory or set this directory as working one.
?set.wd
Then you can use list.files() to get file names.
?list.files
myfiles<-list.files()
Than strip txt. E.g. by
filenames<-strsplit(list.files(), "\\."))
After that you can use for cycle to read all files, however I would prefer list structure.
files<-vector(mode="list", length(myfiles))
for (i in 1:length(myfiles)) {
files[[i]]<-read.table(myfiles[i])
names(files)[[i]]<-filenames[[i]][1]
}
Instead of 75 objects you will get one list object and you can easily use interactively or programmatically its parts.
Regards
Petr
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of ajaykumar
Sent: Thursday, March 20, 2014 6:15 AM
To: r-help at r-project.org
Subject: [R] Import multiple files into R
Hi I want to import around 75 files. Each file has a name and a time
and is comma separated.
For example some of my file names are
Asheville_Dec.txt
Asheville_Jan.txt
Asheville_Feb.txt
Charlotte_Dec.txt
Chapelhill_Jan.txt
The time months are only Dec Jan and Feb. The locations are different.
I have data for these 3 months at 25 cities which I want to import in R
I don't want to use read.table 75 times and keep changing names.
Is there any way I can keep all the city names in an object and the
three months in another object and then use a loop over read.table of
location_time.txt I would also like to view them as 75 different data
sets in R So the file Asheville_Dec must be in a dataset called
Asheville_Dec in R
Can this be done.
Please help
--
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multiple-files-into-R-tp4687178.html
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