On Apr 1, 2011, at 10:00 AM, hongsheng wu wrote:
Hi all,
I have a huge data set. All I want to do is to change the column
names of
the it. So if I use read.table, I can read the data in and change
colnames
and then write back, such as,
t <- read.table("a.txt", header = T, sep = "\t")
colnames(t)
colnames(t) <- c("....) # new column names
write.table(t, "a.txt", quote = F, sep = "\t", row.names = F,
col.names = T)
My question is that is there a better to do this without reading in
and
write out data entirely?
With an editor.
--
David Winsemius, MD
West Hartford, CT
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