I'm not sure why this is happening:
tmp <- data.frame(
a = letters[1:2],
b=c(TRUE, FALSE),
stringsAsFactors = FALSE
)
idx <- matrix(c(1, 2, 2, 2), 2, byrow = TRUE)
tmp[idx]
[1] " TRUE" "FALSE"
Notice there is a space before the TRUE: " TRUE".
This space isn't happening purely because of coercion:
c("blah", TRUE, FALSE)
[1] "blah" "TRUE" "FALSE"
No space.
Obviously:
as.logical(tmp[idx])
[1] NA FALSE
which is why I think this might be a bug.
David
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