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kelvin
2005 Feb 17
3
help on deleting NAs
Dear R friends
My goal is to eliminate this specific group(1) if the # of NAs in this
group greater than
50%(specifically say greater than 3). Would you please show me how to do
it.
I have a sample data as following:
Thanks a lot.
Kevin Lin
y group f1 f2 f3
30 NA 1 1 1 1
27 NA 1 1 2 2
48 NA 1 2 1 2
40 -0.6066416 1 2 2 1
24