(I'm resending this, because there seemed to be a problem with my previous
attempt.)
I've been scratching my head over this one for too long. I'm hoping
someone out there can solve this riddle.
I have two vectors of characters, v1 and v2, both of length L, and two
matrices of logicals, m1 and
Here is a slight simplification:
nr <- nrow(m1); nc <- ncol(m1)
lapply(1:nr, function(i) cbind(v1, v2)[cbind(1:nc, (m1+2*m2)[i,])])
On Tue, Jul 28, 2009 at 1:36 PM, Gabor
Grothendieck wrote:
> Try this:
>
>> lapply(1:3, function(i) cbind(v1, v2)[cbind(col(m1)[i,], (m1+2*m2)[i,])])
> [[1]]
> [1]
Try this:
> lapply(1:3, function(i) cbind(v1, v2)[cbind(col(m1)[i,], (m1+2*m2)[i,])])
[[1]]
[1] "A" "b" "D" "f"
[[2]]
[1] "C" "E"
[[3]]
[1] "D" "e"
On Tue, Jul 28, 2009 at 12:48 PM, Jean V Adams wrote:
> I've been scratching my head over this one for too long. I'm hoping
> someone out there c
Hi,
On Jul 28, 2009, at 12:48 PM, Jean V Adams wrote:
I've been scratching my head over this one for too long. I'm hoping
someone out there can solve this riddle.
I have two vectors of characters, v1 and v2, both of length L, and two
matrices of logicals, m1 and m2, both of dimension N*L. Th
I've been scratching my head over this one for too long. I'm hoping
someone out there can solve this riddle.
I have two vectors of characters, v1 and v2, both of length L, and two
matrices of logicals, m1 and m2, both of dimension N*L. The first matrix
of logicals corresponds to the first vec
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