If I understand the sequence, you want the odd columns from the odd
rows and the even columns from the even rows to "a" and the
remainder go to "b". Once you have a transposed matrix, the recipe
looks straightforward.
Clint
--
Clint Bowman INTERNET: cl...@ecy.wa.gov
Air Quality Modeler INTERNET: cl...@math.utah.edu
Department of Ecology VOICE: (360) 407-6815
PO Box 47600 FAX: (360) 407-7534
Olympia, WA 98504-7600
On Thu, 25 Feb 2010, gianni lavaredo wrote:
dear Researcher
Sorry that I know this is not the right email-list and this is a basic help
but I am doing a remotesensing filter and I am honest, I have no idea how I
can do this.
I have a sequance form 1 to 16
> seq(1:16)
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
and I wish to select this combination in a vector
a <- c(1,3,6,8,9,11,14,16)
b <- c(2,4,5,7,10,12,13,15)
following the below example
t(matrix(data = seq(1:16), nrow = 4, ncol = 4))
[,1] [,2] [,3] [,4]
[1,] 1 2 3 4
[2,] 5 6 7 8
[3,] 9 10 11 12
[4,] 13 14 15 16
gianni
[[alternative HTML version deleted]]
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@stat.math.ethz.ch
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@stat.math.ethz.ch
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
