Displaying 1 result from an estimated 1 matches for "tp4658405p4658508".
2013 Feb 13
3
match in dependence of 2 columns
Hello,
i want to match a column of one data.frame to another, my problem is, that i
only want to match the data, if 2 columns are equal.
i have a example:
data.frame1
cu.nr. name value
A 1 Evo 100
B 1 Mer 80
C 2 Ford