[BioC] comparing data frames

[Straubhaar, Juerg]

I have two data frames with a name column containing affy probeset ids. I would like to pull out the ids (just the ids) which are common in both data frames. (Actually, I could just have to character vectors and would like to print the common elements).

I tried this approach:

for (elx in x) {for (ely in y) {if (elx==ely) print(ely)}}

x, y : character vectors

This prints out the correct result but I am not able to assign the resulting probesets and it also seems quite an inelegant solution.

Thank you for your help.

Juerg Straubhaar
UMass Med School