Test for difference between two pint patterns
Hi Paolo, see the help page of Kcross(), pcfcross() or any other crossed function in spatstat (and also that of envelope() for the tests). Best, Marcelino El 17/07/2017 a las 10:32, Paolo Piras escribi?:
Hi folks, I'm new in point pattern analysis; thus my question could appear trivial for experts; Given two ppp objects (spatstat package) [with different number of points] I'm looking for a way to assess the statistical difference in the distributions of points. studpermu.test() seems doing the job but for groups of point patterns while I have only two distributions. Kest() could be used to look for deviation from Poisson distribution but I should compare the two patterns. I think a hand-made permutation test where points are randomly re-assigned between the two distribution and K stat is computed at any run (and compared with the observed ones) could be ok but I'm not sure however. Thanks in advance for any advice Paolo [[alternative HTML version deleted]]
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Marcelino de la Cruz Rot Depto. de Biolog?a y Geolog?a F?sica y Qu?mica Inorg?nica Universidad Rey Juan Carlos M?stoles Espa?a