[R] Column names of a data frame

[michael watson (IAH-C)]

I'm coming out with all the classic problems today ;-)

Can anyone tell me how to change the column names of an already existing
data frame?  I've read the docs for ?data.frame and ?as.data.frame but
can't figure it out.

I want to make a new data.frame from some of the columns of an existing
data.frame, but when I do that, the new data.frame columns have the same
names as the old data.frame's columns, and I want them to be
different....

Sorry for the lame question....