Hello,
Currently, subset.data.frame() does
if (missing(subset))
r <- TRUE
else {
perhaps better might be:
if (missing(subset))
r <- rep(TRUE, nrow(x))
else {
The rationale being, if 'x' has zero rows and 'subset' is missing, we
don't want to end up with more rows than we started with:
> subset(head(iris, 0), select = -Species)
Sepal.Length Sepal.Width Petal.Length Petal.Width
NA NA NA NA NA
Thoughts?
-Ben
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