[R] Notes on R Objects

Hi all, Is there any way to add notes or comments to R objects? It can be hard for me to come up with a descriptive name that encapsulates all the differences between data sets, so it would be very helpful if I could add a note which described the object. I didn't find anything like this in the

[R] Regular Expressions in Column Headings

Hi all, I am hoping that someone can help me with a problem I am having with column headings. I have read a table into R using read.table: the rows are documents, and the columns are counts of regular expression matches (so that the column heading is the given regular expression). My problem is