xptstats

xptstats

USAGE: xptstats infile [-t t_max] [-n ns_max] [-w file] [-L]

(null) constructs the distribution functions N(t)/N_0
and P(t) for a given point pattern

ARGUMENTS:
infile: input filename (.vin) (ASCII)
produced by spp or xah

OPTIONS:
   -t t_max: maximum radius (R/R0) at which to stop (default = 1)
-n ns_max: maximum # iteration steps (default = 20)
    -w file: write data to file
         -L: print Software License for this module

Example:
xptstats random.vin

random.vin:

2583 1.000000 510.000000 1.000000 510.000000
18.000000 1.000000
135.000000 1.000000
166.000000 1.000000
183.000000 1.000000
444.000000 1.000000
505.000000 1.000000
38.000000 2.000000
60.000000 2.000000
132.000000 2.000000
206.000000 2.000000
310.000000 2.000000
336.000000 2.000000
10.000000 3.000000
189.000000 3.000000
227.000000 3.000000
229.000000 3.000000
etc...

output:

Parameters are:
t_max = 1.000000
S0 = 259081, N0 = 2583, R0 = 10.015106, ns_max = 20, DelR = 0.500755

The distribution functions are:

T N(T)/N0 P(T)
0.050000 0.000000 0.000000
0.100000 0.930314 0.029408
0.150000 0.930314 0.029408
0.200000 0.699961 0.139288
0.250000 0.699961 0.139288
0.300000 0.491289 0.252195
0.350000 0.491289 0.252195
0.400000 0.270616 0.400064
0.450000 0.270616 0.400064
0.500000 0.088269 0.565109
0.550000 0.088269 0.565109
0.600000 0.022842 0.678425
0.650000 0.022842 0.678425
0.700000 0.003871 0.792702
0.750000 0.003871 0.792702
0.800000 0.001161 0.863263
0.850000 0.001161 0.863263
0.900000 0.000774 0.918705
0.950000 0.000774 0.918705
1.000000 0.000387 0.959742

random.tif: