Hi,
I need to subset different levels of vector in a dataset to create a new
dataframe that contains only these. These observations are not numerical, so I
can't use the subset() function (at least this is the response I get from R).
Suppose the dataframe looks like this:
ParticipID ERP Electrode
1 s1 0.0370 FP1
2 s2 35.0654 FP2
3 s3 -3.3852 F4
4 s4 2.6119 P3
5 s5 0.1224 P4
6 s6 -5.3153 O1
I want to create a subset of the dataframe with only the FP1, FP2, F4 levels of
Electrode, how do I do?
(actually the levels I have to filter are much more than these three, but this
is just to give an example).
I know this is a trivial question, but I am still getting familiar with R...
Thanks a lot,
s.
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