Hi,
May be this helps.
list.files()
#[1] "file1.txt" "file2.txt" "file3.txt"
lapply(list.files(),function(x)
{x1<-read.table(x,header=TRUE);x2<-gsub("txt","png",x);png(x2);plot(col2~col1,data=x1,type="l");dev.off()})
A.K.
----- Original Message -----
From: David Lyon <david_ly...@yahoo.com>
To: "r-help@r-project.org" <r-help@r-project.org>
Cc:
Sent: Tuesday, April 2, 2013 12:13 AM
Subject: [R] please help, iteration through a list of files and plot each one
I have many files in 1 directory, file names end in .txt.
Each file has 2 columns
col1 col2
2 3
3 4
4 5
5 6
I want to make a list of the file names and iterate through each plotting them
in a separate file $filename\.png with the png swapped for txt.
So far I have this, can someone help fill in the blanks?
Thank You!
file_list <- list.files()
for (file in file_list){
if (!exists("dataset")){
dataset <- read.table(file, header=TRUE, sep="\t")
}
if (exists("dataset")){
temp_dataset <-read.table(file, header=TRUE, sep="\t")
######how to plot(temp_dataset) each file and save png(file\.png)
}
}
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______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
