On 08.02.2012 20:14, Ron Michael wrote:
Dear all, let say I want to write a vector to a CSV file. So I can have following syntax: write.csv(rnorm(10), "dat.csv") Now I want to add one more column into that existing file. If I use the same code then existing file will be destroyed. Is there any functionality to add without destroying the existing file? I have tries with 'append = TRUE' however it is not working! Any suggestion will be highly appreciated.
Since these text files are written line by line, you cannot add a column afterwards, you can just append rows.
Hence read the first column and write a two column data.frame afterwards. Uwe Ligges
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______________________________________________ R-help@r-project.org 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.
