Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Library: spatial
See also: SPPPinit SPPPinitrandom SPPPsetregion SPPPgetregion SPPPkfn SPPPpsim SPPPstrauss SPPPssi SPPPkenvl

Quantlet: SPPPkaver
Description: computes average of simulations of K-fns

Reference(s):

Link:
Usage: res = SPPPkaver(fs, k, obj)
Input:
fs scalar, full scale of the plot
k scalar, number of regularly spaced distances in (0, fs)
obj list, consisting of xmat, ymat, and type, caculated by SPPPpsim, SPPPstrauss, or SPPPssi (list type is "PSIM", "STRAUSS", or "SSI")
Output:
res list, consisting of components hx and aver:
res.hx k x 1 vector, distances
res.aver k x 1 vector, averages of K-fn

Note:

Example:
; loads the spatial statistics library
library("spatial")
; reads a spatial data set
pines = read("pines.dat")
; initializes a point process
pinesobj = SPPPinit(pines, 0, 96, 0, 100, 10)
; resets random number generator
SPPPinitrandom(0)
; simulates 100 Binomial point processes, each consisting
; of 72 points, in the previously determined domain
ppsim = SPPPpsim(100, 72)
; calculates the average in interval(0, 5), split
; into 100 segments
ppkaver = SPPPkaver(5, 100, ppsim)
ppkaver

Result:
List, consisting of distances and averages of K-fn:

Contents of ppkaver.hx
[  1,]     0.05
[  2,]      0.1
[  3,]     0.15
[  4,]      0.2
[  5,]     0.25
...
[ 99,]     4.95
[100,]        5

Contents of ppkaver.aver
[  1,]  0.049757
[  2,]  0.096131
[  3,]  0.15146
[  4,]  0.20405
[  5,]  0.24841
...
[ 99,]   4.9111
[100,]   4.9623



Author: J. Symanzik, 20000725 license MD*Tech
(C) MD*TECH Method and Data Technologies, 05.02.2006