On 15.09.2010 10:55, Suphajak Ngamlak wrote:
Dear All,
Could you please recommend how I can do this?
I have several text files in one folder. Let's name them A0801.RSK,
A0802.RSK, ....
I would like R to
1) Know all file names in this folder
?list.files
2) Update value in one column of these files
3) Write results in another text file with _xval in the file names
?paste
Uwe Ligges
Below is R code for read, update, and write one file
Import<-"C:/A0810.RSK"
Table<-read.table(file= Import, sep = ",", head=TRUE, na.strings = "NA")
Table$VALUE<-0
Export<-"C:/A_XVal0810.RSK"
write.table(Table, file= Export, sep = ",", col.names = TRUE)
Thank you
Best Regards,
Suphajak Ngamlak
Equity and Derivatives Trading
Phatra Securities Public Company Limited
Tel: +662-305-9179
Email: supha...@phatrasecurities.com
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and provide commented, minimal, self-contained, reproducible code.
