[R] Reading multiple txt files into one data frame

From: Kartik Pappu <kartik.pappu_at_gmail.com>
Date: Sun 30 Jul 2006 - 11:16:51 EST


Hello All,

I have a device that spews out experimental data as a series of text files each of which contains one column with several rows of numeric data. My problem is that for each trial it gives me one text file (and I run between 30 to 50 trials at a time) and I would ideally like to merge all these text files into one large data frame with each column representing a single trial. It is not a problem if NA characters are added to make all the columna of eaqual length. Right now I am doing this by opening each file individually and cutting and pasting the data into an excel file. How can I do this in R assuming all my text files are in one directory.

Is it also possible to customize the column headers. For example if I have 32 trials and 16 are experimental and 16 are control and I want to name the columns "Expt1", Expt2",... "Expt16" and the control columns "Cntl1",...Cntl16".

Kartik



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. Received on Sun Jul 30 11:29:25 2006

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.1.8, at Mon 31 Jul 2006 - 18:17:09 EST.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.