Thanks a lot for your hint
marco
2011/5/27 Erich Neuwirth erich.neuwi...@univie.ac.at
arr-1:72
dim(arr)-c(2,4,3,3)
apply(arr,1:2,sum)
[,1] [,2] [,3] [,4]
[1,] 297 315 333 351
[2,] 306 324 342 360
apply(arr,3:4,sum)
[,1] [,2] [,3]
[1,] 36 228 420
[2,] 100 292
Thanks a lot for your help
marco
2011/5/27 Thomas Lumley tlum...@uw.edu
On Fri, May 27, 2011 at 10:06 AM, marco milella vru...@gmail.com wrote:
Hi to everybody
I have an array with dimensions 2,4,3,3.
Wanting to sum the matrices in the first two dimensions, I'm trying to
use
the apply
Hi to everybody
I have an array with dimensions 2,4,3,3.
Wanting to sum the matrices in the first two dimensions, I'm trying to use
the apply function, but with no results. Have to say I'm quite new with R
syntax.
tx in advance
marco
[[alternative HTML version deleted]]
On Fri, May 27, 2011 at 10:06 AM, marco milella vru...@gmail.com wrote:
Hi to everybody
I have an array with dimensions 2,4,3,3.
Wanting to sum the matrices in the first two dimensions, I'm trying to use
the apply function, but with no results. Have to say I'm quite new with R
syntax.
Tell
arr-1:72
dim(arr)-c(2,4,3,3)
apply(arr,1:2,sum)
[,1] [,2] [,3] [,4]
[1,] 297 315 333 351
[2,] 306 324 342 360
apply(arr,3:4,sum)
[,1] [,2] [,3]
[1,] 36 228 420
[2,] 100 292 484
[3,] 164 356 548
apply(arr,1:2,sum)
will sum all elements arr(i1,i2,..)
for each single
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