[R] R: deleting rows
Clark Allan
Allan at STATS.uct.ac.za
Thu Sep 15 10:22:38 CEST 2005
hi all
hopefully some one can help.
assume that i imported the following data into R (say the data frame is
called a)
x1 x2 x3
1 NA 3
1 2 NA
1 2 3
3 NA 6
4 5 9
7 5 6
7 8 9
NA 7 9
How can i construct a new data frame that only contains those rows that
does not contain the NA's? is these a quick way?
ie
x1 x2 x3
1 2 3
4 5 9
7 5 6
7 8 9
in this example we can simple use a[c(-1,-2,-4,-8),] but happens if we
have a larger dataframe?
we need to construct some kind of row indicator telling R which rows
contains NA'S.
is there an easier method?
/
allan
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