spatialsegregation-helpers: Functions for the aid of segregation measures

In spatialsegregation: Segregation Measures for Multitype Spatial Point Patterns

Description

Small functions included in package spatialsegregation, used for manipulation of forest datasets which have dbh-values (pp with an element $dbh).

Usage

 clean.up.data(pp, dbh = 10, atleast = 10)
 freqs(pp)
 minusID(pp, minusR, dbh, atleast=0)
 shake(pp, a = 0.001)

Arguments

pp	Multitype point pattern (see package 'spatstat')
atleast	Include specii with abundance atleast atleast.
dbh	Include only those points with dbh atleast dbh.
minusR	Range from the border withing which to exluce points (used for correction of estimates).
a	Size of displacement: x+Unif(-a,a), y+Unif(-a,a).

Details

Small functions to manipulate multitype point patterns.

clean.up.data: Returns a subsample fullfilling the given constrains.

freqs: Returns the abundance vector.

minusID: Returns a 0-1-vector indicating inclusion in a simple minus-correction.

shake: Shakes the pattern, i.e. adds a random displacement shift to each point.

Author(s)

Tuomas Rajala [e-mail]

spatialsegregation documentation built on May 2, 2019, 9:39 a.m.