On Mon, 19 Sep 2011, Rich Shepard wrote:
On Mon, 19 Sep 2011, Marc Schwartz wrote:
You can look at ?complete.cases for one approach, presuming that it will
work on zoo objects.
Marc,
That's the opposite of what I want. It returns only rows with no missing
data. I'm looking for something that will return rows with _only_ missing
data, and drop them in the bit bucket.
This should do what you want, I think:
R> z <- zoo(matrix(1:8, ncol = 2), Sys.Date() + 0:3)
R> z[2,2] <- NA
R> z[3,] <- NA
R> z
2011-09-19 1 5
2011-09-20 2 NA
2011-09-21 NA NA
2011-09-22 4 8
R> z[!apply(is.na(z), 1, all),]
2011-09-19 1 5
2011-09-20 2 NA
2011-09-22 4 8
hth,
Z
Thanks,
Rich
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