Hi!
I have a 3d array:
> dim(ib5km15.dbc)
[1] 190 241 19
and a set of positions to extract:
> ib5km.lincol.random[1:3,]
[,1] [,2]
[1,] 78 70
[2,] 29 213
[3,] 180 22
Geting the values of a 2D array
for that set of positions would
be:
> ima <- ib5km15.dbc[,,1]
> ima[ib5km.lincol.random[1:10,]]
but don't find the way for the case
of the 3D array:
> ib5km15.dbc[ib5km.lincol.random[1:10,],]
Error in ib5km15.dbc[ib5km.lincol.random[1:10, ], ] :
incorrect number of dimensions
Could anyone suggest the way of subseting
the 3D array to get a vector of z values
for each position recorded in ib5km.lincol.random?
(avoiding the use of for loops).
Thanks
Agus
Dr. Agustin Lobo
Instituto de Ciencias de la Tierra (CSIC)
Lluis Sole Sabaris s/n
08028 Barcelona SPAIN
tel 34 93409 5410
fax 34 93411 0012
[EMAIL PROTECTED]
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