internal: Internal DSpat functions

In DSpat: Spatial Modelling for Distance Sampling Data

Description

Miscellaneous set of functions used in the package.

Usage

## S3 method for class 'dspat'
AIC(object,...,k)

## S3 method for class 'dspat'
print(x,...)

## S3 method for class 'dspat'
summary(object,...)

## S3 method for class 'dspat'
coef(object,...)

## S3 method for class 'dspat'
vcov(object,...)

x.psp==y.psp

x.psp!=y.psp

rev_val(x,y,val)

im.clipped(x, window)

owin.gpc.poly(window)

Arguments

x	for generic functions: a dspat object output from dspat with class dspat, for rev_val: a vector of x coordinates, for im.clipped: a vector of image values in order defined by spatstat
object	a dspat object output from dspat with class dspat
k	penalty per parameter in AIC, default is 2
x.psp, y.psp	psp objects
y	vector of y coordinates
val	vector of image values
window	class owin polygonal window
...	additional arguments for generic functions

Details

Internal functions:

AIC	Computes AIC value
print.dspat	print various objects in dspat object
summary.dspat	shows summary of ppm model object
coef.dspat	provides coefficients of the intensity and detection function
vcov.dspat	provides var-cov matrix of coefficients
Ops.psp	provides == and != operators for psp objects
rev_val	reverses order of val such that y increases within increasing x as needed in im
im.clipped	creates image and fills values (val) into the clipped portion
	of the image as defined by window
owin.gpc.poly	creates a gpc class poly from first polygon of an owin class

Author(s)

Jeff Laake

DSpat documentation built on May 2, 2019, 11:10 a.m.