R help - Jan 2011 - data frame column name change

How do I change the name of one column in a data frame ? Suppose I have a
data frame x with 5 columns. If the names were date, col1, col2, col3, col4
and I wanted to simply change the name of date, what would the command be ?
I tried the following and it didn't seem to work :

names(x[1]) <- "newname"

Thanks in advance for the comments
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Hi eric,

Try

colnames(x)
colnames(x)[1] <- 'newname'
colnames(x)

HTH,
Jorge


On Sun, Jan 16, 2011 at 11:28 PM, eric <> wrote:
>
> How do I change the name of one column in a data frame ? Suppose I have a
> data frame x with 5 columns. If the names were date, col1, col2, col3, col4
> and I wanted to simply change the name of date, what would the command be ?
> I tried the following and it didn't seem to work :
>
> names(x[1]) <- "newname"
>
> Thanks in advance for the comments
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/data-frame-column-name-change-tp3220684p3220684.html
> Sent from the R help mailing list archive at Nabble.com.
>
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or ....

d = data.frame(Col1=c(1,2,3),Col2=c(2,3,4),Col3=c(3,4,5))
names(d)

names(d)[1] = "NewName1"
names(d)

HTH

Pete
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