Displaying 1 result from an estimated 1 matches for "tp3454646p3454646".
2011 Apr 16
3
if else statements in data frame
...g value(NA) for the corresponding row. So my result data frame
should be like below:
x y Z
------------------
A A NA
A B B
B B B
A B B
How can I do this with if else statements in R. Thanks a lot.
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