Hi,
I have a data set (data frame) describing some features of the students in
a high school in the following format:
Stu ID Year feature 1 feature 2 .............
1001 1990
1001 1991
1001 1992
1002 1990
1002 1991
1002 1992
Some features of a few of these students are missing, I would like to
ignore those students in my analysis, but
I really can' t figure out a neat way to do this in R. I need to remove all
the info. of a student (indicated by ID no.) if there
are NA's in his/her features.
Could someone give me a quick tutorial on this ?
I would really appreciate.
best
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