| subset.fasp {spatstat} | R Documentation |
Extract a subset of a function array (an object of class
"fasp").
## S3 method for class 'fasp': x[I, J, drop, ...]
x |
A function array. An object of class "fasp".
|
I |
any valid expression for a subset of the row indices of the array. |
J |
any valid expression for a subset of the column indices of the array. |
drop, ... |
Ignored. |
A function array can be regarded as a matrix whose entries
are functions. See fasp.object for an explanation of
function arrays.
This routine extracts a sub-array according to the usual conventions for matrix indexing.
A function array (of class "fasp").
Adrian Baddeley adrian@maths.uwa.edu.au http://www.maths.uwa.edu.au/~adrian/ and Rolf Turner rolf@math.unb.ca http://www.math.unb.ca/~rolf
# Lansing woods data - multitype points with 6 types data(lansing) # compute 6 x 6 array of all cross-type K functions a <- alltypes(lansing, "K") # extract first three marks only b <- a[1:3,1:3] ## Not run: plot(b) # subset pertaining to hickories h <- a[levels(lansing$marks) == "hickory", ] ## Not run: plot(h)