filterLocalMaxima: Local Maxima Filtering

In hansoleorka/myR: Collection of r functions for hansoleorka

Description

Find local maxima's in a local neighborhod

Usage

filterLocalMaxima(CHM, w = 3, ov = 2)

Arguments

CHM	a object of class SpatialGridDataFrame
w	matrix of weights e.g. a 3 by 3 matrix; see Details. The matrix can also be expressed as the number of cells in a single direction or in two directions from the focal cell, in which case the weights are all set to 1. I.e. w=3 refers to a 3 by 3 matrix: 2 cells at each side of the focal cell, queen's case, 9 cells in total. This is equivalent to w=c(3,3). You can also specify a rectangular neighborhood, e.g. w=c(3,5); but the sides must be odd numbers. If you need even sides, you can add a column or row with weights of zero.
ov	threshold of local maximas to consider

Value

object of class SpatialPointsDataFrame-class

Author(s)

Hans Ole Orka [e-mail]

hansoleorka/myR documentation built on May 17, 2019, 2:29 p.m.