Hello,
Try the following.
complete.cases(f) & apply(f, 1, function(x) all(x == x[1]))
Hope this helps,
Rui Barradas
Em 18-01-2013 20:53, Sam Steingold escreveu:
I have a data frame with several columns.
I want to select the rows with no NAs (as with complete.cases)
and all columns identical.
E.g., for
--8<---------------cut here---------------start------------->8---
f <- data.frame(a=c(1,NA,NA,4),b=c(1,NA,3,40),c=c(1,NA,5,40))
f
a b c
1 1 1 1
2 NA NA NA
3 NA 3 5
4 4 40 40
--8<---------------cut here---------------end--------------->8---
I want the vector TRUE,FALSE,FALSE,FALSE selecting just the first
row because there all 3 columns are the same and none is NA.
thanks!
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