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spatstat (version 1.25-4)

Spatial Point Pattern analysis, model-fitting, simulation, tests

Description

A package for analysing spatial data, mainly Spatial Point Patterns, including multitype/marked points and spatial covariates, in any two-dimensional spatial region. Also supports three-dimensional point patterns, and space-time point patterns in any number of dimensions. Contains over 1000 functions for plotting spatial data, exploratory data analysis, model-fitting, simulation, spatial sampling, model diagnostics, and formal inference. Data types include point patterns, line segment patterns, spatial windows, pixel images and tessellations. Exploratory methods include K-functions, nearest neighbour distance and empty space statistics, Fry plots, pair correlation function, kernel smoothed intensity, relative risk estimation with cross-validated bandwidth selection, mark correlation functions, segregation indices, mark dependence diagnostics etc. Point process models can be fitted to point pattern data using functions ppm, kppm, slrm similar to glm. Models may include dependence on covariates, interpoint interaction, cluster formation and dependence on marks. Fitted models can be simulated automatically. Also provides facilities for formal inference (such as chi-squared tests) and model diagnostics (including simulation envelopes, residuals, residual plots and Q-Q plots).

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Version

Install

install.packages('spatstat')

Monthly Downloads

22,386

Version

1.25-4

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

February 29th, 2012

Functions in spatstat (1.25-4)

Kdot.inhom

Inhomogeneous Multitype K Dot Function
Replace.im

Reset Values in Subset of Image
anova.lppm

ANOVA for Fitted Point Process Models on Linear Network
crossdist.psp

Pairwise distances between two different line segment patterns
discpartarea

Area of Part of Disc
harmonic

Basis for Harmonic Functions
lgcp.estK

Fit a Log-Gaussian Cox Point Process by Minimum Contrast
compatible.fv

Test Whether Function Objects Are Compatible
eval.fasp

Evaluate Expression Involving Function Arrays
distmap.owin

Distance Map of Window
nndist.ppx

Nearest Neighbour Distances in Any Dimensions
Poisson

Poisson Point Process Model
plot.psp

plot a Spatial Line Segment Pattern
areaGain

Difference of Disc Areas
plot.slrm

Plot a Fitted Spatial Logistic Regression
hyperframe

Hyper Data Frame
pcf.fv

Pair Correlation Function obtained from K Function
as.ppp

Convert Data To Class ppp
bind.fv

Combine Function Value Tables
Extract.ppp

Extract or Replace Subset of Point Pattern
envelope.pp3

Simulation Envelopes of Summary Function for 3D Point Pattern
Jcross

Multitype J Function (i-to-j)
StraussHard

The Strauss / Hard Core Point Process Model
infline

Infinite Straight Lines
Iest

Estimate the I-function
as.interact

Extract Interaction Structure
pcfcross

Multitype pair correlation function (cross-type)
plot.leverage.ppm

Plot Leverage Function
Kmodel

K function of a model
bdist.points

Distance to Boundary of Window
is.im

Test Whether An Object Is A Pixel Image
as.psp

Convert Data To Class psp
coef.ppm

Coefficients of Fitted Point Process Model
colourtools

Convert and Compare Colours in Different Formats
ants

Harkness-Isham ants' nests data
as.hyperframe

Convert Data to Hyperframe
as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame
compareFit

Residual Diagnostics for Multiple Fitted Models
gpc2owin

Convert Polygonal Region into Different Format
erosion

Morphological Erosion
bermantest

Berman's Tests for Point Process Model
cbind.hyperframe

Combine Hyperframes by Rows or by Columns
crossdist.default

Pairwise distances between two different sets of points
nndist.pp3

Nearest neighbour distances in three dimensions
Extract.psp

Extract Subset of Line Segment Pattern
nndist

Nearest neighbour distances
Extract.splitppp

Extract or Replace Sub-Patterns
pixellate.psp

Convert Line Segment Pattern to Pixel Image
owin.object

Class owin
AreaInter

The Area Interaction Point Process Model
gridcentres

Rectangular grid of points
km.rs

Kaplan-Meier and Reduced Sample Estimator using Histograms
Gcross

Multitype Nearest Neighbour Distance Function (i-to-j)
distmap

Distance Map
dummify

Convert Data to Numeric Values by Constructing Dummy Variables
dfbetas.ppm

Parameter influence measure
Hest

Spherical Contact Distribution Function
as.rectangle

Window Frame
boxx

Multi-Dimensional Box
midpoints.psp

Midpoints of Line Segment Pattern
circumradius

Circumradius and Diameter of a Linear Network
nsegments

Number of Line Segments in a Line Segment Pattern
dirichlet

Dirichlet Tessellation of Point Pattern
bdist.pixels

Distance to Boundary of Window
crossdist

Pairwise distances
project.ppm

Force Point Process Model to be Valid
diagnose.ppm

Diagnostic Plots for Fitted Point Process Model
effectfun

Compute Fitted Effect of a Spatial Covariate in a Point Process Model
anova.ppm

ANOVA for Fitted Point Process Models
Kmulti

Marked K-Function
diameter.box3

Geometrical Calculations for Three-Dimensional Box
linearKinhom

Inhomogeneous Linear K Function
perimeter

Perimeter Length of Window
methods.pp3

Methods for three-dimensional point patterns
Gest

Nearest Neighbour Distance Function G
eval.fv

Evaluate Expression Involving Functions
Lcross.inhom

Inhomogeneous Cross Type L Function
ppp

Create a Point Pattern
ewcdf

Weighted Empirical Cumulative Distribution Function
eval.im

Evaluate Expression Involving Pixel Images
marks.psp

Marks of a Line Segment Pattern
Ldot

Multitype L-function (i-to-any)
anemones

Beadlet Anemones Data
Extract.msr

Extract Subset of Signed or Vector Measure
Extract.im

Extract Subset of Image
print.im

Print Brief Details of an Image
as.matrix.im

Convert Pixel Image to Matrix or Array
affine.owin

Apply Affine Transformation To Window
nncross

Nearest Neighbours Between Two Patterns
as.data.frame.ppp

Coerce Point Pattern to a Data Frame
progressreport

Print Progress Reports
Extract.fasp

Extract Subset of Function Array
alltypes

Calculate Summary Statistic for All Types in a Multitype Point Pattern
endpoints.psp

Endpoints of Line Segment Pattern
print.ppm

Print a Fitted Point Process Model
fv

Create a Function Value Table
quad.object

Class of Quadrature Schemes
Kinhom

Inhomogeneous K-function
project2segment

Move Point To Nearest Line
model.matrix.ppm

Extract Design Matrix from Point Process Model
rDiggleGratton

Perfect Simulation of the Diggle-Gratton Process
is.multitype.ppm

Test Whether A Point Process Model is Multitype
leverage.ppm

Leverage Measure for Spatial Point Process Model
clickpoly

Interactively Define a Polygon
applynbd

Apply Function to Every Neighbourhood in a Point Pattern
colourmap

Colour Lookup Tables
as.owin

Convert Data To Class owin
box3

Three-Dimensional Box
nearest.raster.point

Find Pixel Nearest to a Given Point
bounding.box.xy

Convex Hull of Points
crossdist.ppx

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
plot.ppm

plot a Fitted Point Process Model
bronzefilter

Bronze gradient filter data
quadratcount

Quadrat counting for a point pattern
finpines

Pine saplings in Finland.
logLik.ppm

Log Likelihood and AIC for Point Process Model
concatxy

Concatenate x,y Coordinate Vectors
mean.im

Maximum, Minimum, Mean, Median, Range or Sum of Pixel Values in an Image
MultiHard

The Multitype Hard Core Point Process Model
crossing.psp

Crossing Points of Two Line Segment Patterns
rPoissonCluster

Simulate Poisson Cluster Process
integral.im

Integral of a Pixel Image
rMaternI

Simulate Matern Model I
lut

Lookup Tables
area.owin

Area of a Window
residuals.ppm

Residuals for Fitted Point Process Model
idw

Inverse-distance weighted smoothing of observations at irregular points
psstG

Pseudoscore Diagnostic For Fitted Model against Saturation Alternative
identify.psp

Identify Segments in a Line Segment Pattern
distfun

Distance Map as a Function
is.empty

Test Whether An Object Is Empty
append.psp

Combine Two Line Segment Patterns
layered

Create List of Plotting Layers
rNeymanScott

Simulate Neyman-Scott Process
fv.object

Function Value Table
adaptive.density

Intensity Estimate of Point Pattern Using Tessellation
plot.colourmap

Plot a Colour Map
logLik.slrm

Loglikelihood of Spatial Logistic Regression
chorley

Chorley-Ribble Cancer Data
as.tess

Convert Data To Tessellation
rVarGamma

Simulate Neyman-Scott Point Process with Variance Gamma cluster kernel
collapse.fv

Collapse Several Function Tables into One
crossdist.pp3

Pairwise distances between two different three-dimensional point patterns
diameter.boxx

Geometrical Calculations for Multi-Dimensional Box
density.psp

Kernel Smoothing of Line Segment Pattern
rCauchy

Simulate Neyman-Scott Point Process with Cauchy cluster kernel
distmap.psp

Distance Map of Line Segment Pattern
linim

Create Pixel Image on Linear Network
envelope.envelope

Recompute Envelopes
lineardisc

Compute Disc of Given Radius in Linear Network
markstat

Summarise Marks in Every Neighbourhood in a Point Pattern
persp.im

Perspective Plot of Pixel Image
linearK

Linear K Function
rpoisline

Generate Poisson Random Line Process
nnclean

Nearest Neighbour Clutter Removal
methods.slrm

Methods for Spatial Logistic Regression Models
pairs.im

Scatterplot Matrix for Pixel Images
cut.ppp

Classify Points in a Point Pattern
is.multitype.ppp

Test Whether A Point Pattern is Multitype
methods.linnet

Methods for Linear Networks
pool.fasp

Pool Data from Several Function Arrays
intersect.owin

Intersection, Union or Set Subtraction of Two Windows
lurking

Lurking variable plot
model.frame.ppm

Extract the Environment of a Point Process Model
marks

Marks of a Point Pattern
rmhmodel

Define Point Process Model for Metropolis-Hastings Simulation.
methods.lpp

Methods for Point Patterns on a Linear Network
rpoispp

Generate Poisson Point Pattern
model.depends

Identify Covariates Involved in each Model Term
bei

Tropical rain forest trees
is.ppm

Test Whether An Object Is A Fitted Point Process Model
diameter

Diameter of an Object
fasp.object

Function Arrays for Spatial Patterns
nearestsegment

Find Line Segment Nearest to Each Point
is.marked.ppm

Test Whether A Point Process Model is Marked
rotate.ppp

Rotate a Point Pattern
is.marked

Test Whether Marks Are Present
is.subset.owin

Determine Whether One Window is Contained In Another
localKinhom

Inhomogeneous Neighbourhood Density Function
ppm.object

Class of Fitted Point Process Models
corners

Corners of a rectangle
nnwhich.ppx

Nearest Neighbours in Any Dimensions
methods.ppx

Methods for Multidimensional Space-Time Point Patterns
predict.ppm

Prediction from a Fitted Point Process Model
rMosaicField

Mosaic Random Field
npfun

Dummy Function Returns Number of Points
K3est

K-function of a Three-Dimensional Point Pattern
as.function.fv

Convert Function Value Table to Function
thomas.estK

Fit the Thomas Point Process by Minimum Contrast
rSSI

Simulate Simple Sequential Inhibition
pairdist.pp3

Pairwise distances in Three Dimensions
shift.owin

Apply Vector Translation To Window
localK

Neighbourhood density function
clickjoin

Interactively join vertices on a plot
as.mask

Pixel Image Approximation of a Window
lpp

Create Point Pattern on Linear Network
SatPiece

Piecewise Constant Saturated Pairwise Interaction Point Process Model
shapley

Galaxies in the Shapley Supercluster
nnwhich.pp3

Nearest neighbours in three dimensions
rmh.default

Simulate Point Process Models using the Metropolis-Hastings Algorithm.
update.ppm

Update a Fitted Point Process Model
methods.units

Methods for Units
envelope.lpp

Envelope for Point Patterns on Linear Network
affine

Apply Affine Transformation
pairdist.ppp

Pairwise distances
plot.layered

Layered Plot
coords

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern
shift.psp

Apply Vector Translation To Line Segment Pattern
reduced.sample

Reduced Sample Estimator using Histogram Data
istat

Point and Click Interface for Exploratory Analysis of Point Pattern
rat

Ratio object
spatstat-deprecated

Deprecated spatstat functions
rmh

Simulate point patterns using the Metropolis-Hastings algorithm.
quantile.im

Sample Quantiles of Pixel Image
pixellate.ppp

Convert Point Pattern to Pixel Image
flipxy

Exchange X and Y Coordinates
rStraussHard

Perfect Simulation of the Strauss-Hardcore Process
triplet.family

Triplet Interaction Family
matchingdist

Distance for a Point Pattern Matching
nndist.psp

Nearest neighbour distances between line segments
plot.fv

Plot Function Values
delaunay

Delaunay Triangulation of Point Pattern
profilepl

Profile Maximum Pseudolikelihood
quadrat.test.splitppp

Chi-Squared Test of CSR for Split Point Pattern
im.object

Class of Images
summary.owin

Summary of a Spatial Window
rmpoispp

Generate Multitype Poisson Point Pattern
DiggleGatesStibbard

Diggle-Gates-Stibbard Point Process Model
with.fv

Evaluate an Expression in a Function Table
unique.ppp

Extract Unique Points from a Spatial Point Pattern
pool.envelope

Pool Data from Several Envelopes
summary.listof

Summary of a List of Things
latest.news

Print News About Latest Version of Package
fitin.ppm

Extract the Interaction from a Fitted Point Process Model
eem

Exponential Energy Marks
rescale.im

Convert Pixel Image to Another Unit of Length
linearpcfinhom

Inhomogeneous Linear Pair Correlation Function
pcf.fasp

Pair Correlation Function obtained from array of K functions
rStrauss

Perfect Simulation of the Strauss Process
smooth.ppp

Spatial smoothing of observations at irregular points
selfcrossing.psp

Crossing Points in a Line Segment Pattern
methods.rhohat

Methods for Intensity Functions of Spatial Covariate
plot.owin

Plot a Spatial Window
reach

Interaction Distance of a Point Process
spatstat-internal

Internal spatstat functions
as.im

Convert to Pixel Image
solutionset

Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True
LennardJones

The Lennard-Jones Potential
square

Square Window
cauchy.estK

Fit the Neyman-Scott cluster process with Cauchy kernel
G3est

Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern
rmhmodel.ppm

Interpret Fitted Model for Metropolis-Hastings Simulation.
pcf3est

Pair Correlation Function of a Three-Dimensional Point Pattern
nnwhich

Nearest neighbour
Kest.fft

K-function using FFT
opening

Morphological Opening
Linhom

L-function
quadratresample

Resample a Point Pattern by Resampling Quadrats
ord.family

Ord Interaction Process Family
summary.ppm

Summarizing a Fitted Point Process Model
gorillas

Gorilla Nesting Sites
chop.tess

Subdivide a Window or Tessellation using a Set of Lines
plot.influence.ppm

Plot Influence Measure
rpoislpp

Poisson Point Process on a Linear Network
clip.infline

Intersect Infinite Straight Lines with a Window
pairsat.family

Saturated Pairwise Interaction Point Process Family
rpoint

Generate N Random Points
rescale.psp

Convert Line Segment Pattern to Another Unit of Length
is.stationary

Recognise Stationary and Poisson Point Process Models
incircle

Find Largest Circle Inside Window
as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern
pairdist.lpp

Pairwise shortest-path distances between points on a linear network
F3est

Empty Space Function of a Three-Dimensional Point Pattern
lengths.psp

Lengths of Line Segments
PairPiece

The Piecewise Constant Pairwise Interaction Point Process Model
rMatClust

Simulate Matern Cluster Process
rhohat

Smoothing Estimate of Covariate Transformation
plot.envelope

Plot a Simulation Envelope
pcf

Pair Correlation Function
markvario

Mark Variogram
plot.bermantest

Plot Result of Berman Test
bramblecanes

Hutchings' Bramble Canes data
data.ppm

Extract Original Data from a Fitted Point Process Model
rescue.rectangle

Convert Window Back To Rectangle
pppmatching.object

Class of Point Matchings
print.ppp

Print Brief Details of a Point Pattern Dataset
spatstat.options

Internal Options in Spatstat Package
scanpp

Read Point Pattern From Data File
unnormdensity

Weighted kernel smoother
bw.diggle

Cross Validated Bandwidth Selection for Kernel Density
compatible.fasp

Test Whether Function Arrays Are Compatible
bw.scott

Scott's Rule for Bandwidth Selection for Kernel Density
by.im

Apply Function to Image Broken Down by Factor
simplenet

Simple Example of Linear Network
fryplot

Fry Plot of Point Pattern
DiggleGratton

Diggle-Gratton model
density.ppp

Kernel Smoothed Intensity of Point Pattern
volume

Volume of an Object
pool

Pool Data
gridweights

Compute Quadrature Weights Based on Grid Counts
Strauss

The Strauss Point Process Model
pppmatching

Create a Point Matching
pool.rat

Pool Data from Several Ratio Objects
Extract.fv

Extract Subset of Function Values
bounding.box

Bounding Box of a Window or Point Pattern
betacells

Beta Ganglion Cells in Cat Retina
simulate.slrm

Simulate a Fitted Spatial Logistic Regression Model
rjitter

Random Perturbation of a Point Pattern
dummy.ppm

Extract Dummy Points Used to Fit a Point Process Model
MultiStrauss

The Multitype Strauss Point Process Model
convexhull.xy

Convex Hull of Points
psst

Pseudoscore Diagnostic For Fitted Model against General Alternative
tess

Create a Tessellation
Gres

Residual G Function
rmhmodel.default

Build Point Process Model for Metropolis-Hastings Simulation.
ripras

Estimate window from points alone
Lcross

Multitype L-function (cross-type)
rknn

Theoretical Distribution of Nearest Neighbour Distance
plot.ppp

plot a Spatial Point Pattern
shift.im

Apply Vector Translation To Pixel Image
suffstat

Sufficient Statistic of Point Process Model
as.data.frame.im

Convert Pixel Image to Data Frame
inside.owin

Test Whether Points Are Inside A Window
Extract.tess

Extract or Replace Subset of Tessellation
setcov

Set Covariance of a Window
rlinegrid

Generate grid of parallel lines with random displacement
is.convex

Test Whether a Window is Convex
rlabel

Random Re-Labelling of Point Pattern
japanesepines

Japanese Pines Point Pattern
Gdot

Multitype Nearest Neighbour Distance Function (i-to-any)
levelset

Level Set of a Pixel Image
raster.x

Cartesian Coordinates for a Pixel Raster
iplot

Point and Click Interface for Displaying a Point Pattern
markcorrint

Mark Correlation Integral
miplot

Morishita Index Plot
areaLoss

Difference of Disc Areas
pcfdot.inhom

Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type)
contour.listof

Plot a List of Things
bdist.tiles

Distance to Boundary of Window
interp.im

Interpolate a Pixel Image
rstrat

Simulate Stratified Random Point Pattern
plot.linnet

Plot a linear network
print.owin

Print Brief Details of a Spatial Window
Extract.listof

Extract or Replace Subset of a List of Things
im

Create a Pixel Image Object
with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe
Ldot.inhom

Inhomogeneous Multitype L Dot Function
union.quad

Union of Data and Dummy Points
Lest

L-function
smooth.fv

Apply Smoothing to Function Values
disc

Circular Window
matclust.estK

Fit the Matern Cluster Point Process by Minimum Contrast
envelope

Simulation Envelopes of Summary Function
summary.quad

Summarizing a Quadrature Scheme
Saturated

Saturated Pairwise Interaction model
rDGS

Perfect Simulation of the Diggle-Gates-Stibbard Process
split.ppp

Divide Point Pattern into Sub-patterns
runifpointx

Generate N Uniform Random Points in Any Dimensions
pairdist

Pairwise distances
pcfdot

Multitype pair correlation function (i-to-any)
distmap.ppp

Distance Map of Point Pattern
pcfcross.inhom

Inhomogeneous Multitype Pair Correlation Function (Cross-Type)
methods.lppm

Methods for Fitted Point Process Models on a Linear Network
plot.msr

Plot a Signed or Vector-Valued Measure
clickppp

Interactively Add Points
spatstat-package

The Spatstat Package
by.ppp

Apply a Function to a Point Pattern Broken Down by Factor
print.psp

Print Brief Details of a Line Segment Pattern Dataset
rmpoint

Generate N Random Multitype Points
pairdist.ppx

Pairwise Distances in Any Dimensions
diameter.owin

Diameter of a Window
simplify.owin

Approximate a Polygon by a Simpler Polygon
vertices

Vertices of a Window
summary.im

Summarizing a Pixel Image
vcov.ppm

Variance-Covariance Matrix for a Fitted Point Process Model
discretise

Safely Convert Point Pattern Window to Binary Mask
marktable

Tabulate Marks in Neighbourhood of Every Point in a Point Pattern
update.kppm

Update a Fitted Cluster Point Process Model
dilated.areas

Areas of Morphological Dilations
quadrats

Divide Region into Quadrats
expand.owin

Expand Window By Factor
Ord

Generic Ord Interaction model
complement.owin

Take Complement of a Window
ippm

Optimise Irregular Trend Parameters in Point Process Model
plot.kppm

Plot a fitted cluster point process
BadGey

Hybrid Geyer Point Process Model
methods.box3

Methods for Three-Dimensional Box
psstA

Pseudoscore Diagnostic For Fitted Model against Area-Interaction Alternative
kaplan.meier

Kaplan-Meier Estimator using Histogram Data
longleaf

Longleaf Pines Point Pattern
plot.linim

Plot Pixel Image on Linear Network
Kcross

Multitype K Function (Cross-type)
runifpoint3

Generate N Uniform Random Points in Three Dimensions
Kest

K-function
Kcom

Model Compensator of K Function
relrisk

Nonparametric Estimate of Spatially-Varying Relative Risk
Tstat

Third order summary statistic
markcorr

Mark Correlation Function
rpoisppOnLines

Generate Poisson Point Pattern on Line Segments
vargamma.estpcf

Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
summary.splitppp

Summary of a Split Point Pattern
murchison

Murchison gold deposits
kppm

Fit Cluster or Cox Point Process Model
owin

Create a Window
psp

Create a Line Segment Pattern
density.splitppp

Kernel Smoothed Intensity of Split Point Pattern
pairwise.family

Pairwise Interaction Process Family
trim.rectangle

Cut margins from rectangle
is.multitype

Test whether Object is Multitype
Softcore

The Soft Core Point Process Model
ppp.object

Class of Point Patterns
connected

Connected components of an image or window
simulate.ppm

Simulate a Fitted Gibbs Point Process Model
default.dummy

Generate a Default Pattern of Dummy Points
compatible.im

Test Whether Pixel Images Are Compatible
quadrat.test

Chi-Squared Dispersion Test for Spatial Point Pattern Based on Quadrat Counts
pairdist.psp

Pairwise distances between line segments
plot.splitppp

Plot a List of Point Patterns
deltametric

Delta Metric
copper

Berman-Huntington points and lines data
rpoisppx

Generate Poisson Point Pattern in Any Dimensions
hamster

Aherne's hamster tumour data
rescale.ppp

Convert Point Pattern to Another Unit of Length
Gfox

Foxall's Distance Functions
plot.fasp

Plot a Function Array
dilation

Morphological Dilation
thomas.estpcf

Fit the Thomas Point Process by Minimum Contrast
cells

Biological Cells Point Pattern
matclust.estpcf

Fit the Matern Cluster Point Process by Minimum Contrast Using Pair Correlation
harmonise.im

Make Pixel Images Compatible
runiflpp

Uniform Random Points on a Linear Network
unmark

Remove Marks
pixellate.owin

Convert Window to Pixel Image
heather

Diggle's Heather Data
rshift

Random Shift
flu

Influenza Virus Proteins
rshift.psp

Randomly Shift a Line Segment Pattern
periodify

Make Periodic Copies of a Spatial Pattern
lgcp.estpcf

Fit a Log-Gaussian Cox Point Process by Minimum Contrast
rotate

Rotate
psp.object

Class of Line Segment Patterns
valid.ppm

Check Whether Point Process Model is Valid
runifpointOnLines

Generate N Uniform Random Points On Line Segments
spokes

Spokes pattern of dummy points
mincontrast

Method of Minimum Contrast
rLGCP

Simulate Log-Gaussian Cox Process
rescale

Convert dataset to another unit of length
simdat

Simulated Point Pattern
ganglia

Beta Ganglion Cells in Cat Retina, Old Version
pixelquad

Quadrature Scheme Based on Pixel Grid
predict.slrm

Predicted or Fitted Values from Spatial Logistic Regression
linearpcf

Linear Pair Correlation Function
Extract.quad

Subset of Quadrature Scheme
kstest.ppm

Kolmogorov-Smirnov Test for Point Process Model
Hardcore

The Hard Core Point Process Model
rmhmodel.list

Define Point Process Model for Metropolis-Hastings Simulation.
runifpoint

Generate N Uniform Random Points
lppm

Fit Point Process Model to Point Pattern on Linear Network
Triplets

The Triplet Point Process Model
Pairwise

Generic Pairwise Interaction model
Gcom

Model Compensator of Nearest Neighbour Function
anova.slrm

Analysis of Deviance for Spatial Logistic Regression Models
plot.plotppm

Plot a plotppm Object Created by plot.ppm
rpoislinetess

Poisson Line Tessellation
cauchy.estpcf

Fit the Neyman-Scott cluster process with Cauchy kernel
slrm

Spatial Logistic Regression
rshift.ppp

Randomly Shift a Point Pattern
quad.ppm

Extract Quadrature Scheme Used to Fit a Point Process Model
residualspaper

Data and Code From JRSS Discussion Paper on Residuals
as.matrix.owin

Convert Pixel Image to Matrix
pairdist.default

Pairwise distances
stieltjes

Compute Integral of Function Against Cumulative Distribution
clarkevans.test

Clark and Evans Test
allstats

Calculate four standard summary functions of a point pattern.
which.max.im

Identify Pixelwise Maximum of Several Pixel Images
plot.tess

Plot a tessellation
rescale.owin

Convert Window to Another Unit of Length
convexhull

Convex Hull
superimpose

Superimpose Several Geometric Patterns
Geyer

Geyer's Saturation Point Process Model
ponderosa

Ponderosa Pine Tree Point Pattern
identify.ppp

Identify Points in a Point Pattern
smooth.msr

Smooth a Signed or Vector-Valued Measure
is.ppp

Test Whether An Object Is A Point Pattern
is.owin

Test Whether An Object Is A Window
rshift.splitppp

Randomly Shift a List of Point Patterns
sharpen

Data Sharpening of Point Pattern
methods.distfun

Methods for Distance Functions
imcov

Spatial Covariance of a Pixel Image
methods.kppm

Methods for Cluster Point Process Models
pixellate

Convert Spatial Object to Pixel Image
npoints

Number of Points in a Point Pattern
sumouter

Compute Quadratic Forms
rsyst

Simulate systematic random point pattern
split.im

Divide Image Into Sub-images
varblock

Estimate Variance of Summary Statistic by Subdivision
vargamma.estK

Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
model.images

Compute Images of Constructed Covariates
qqplot.ppm

Q-Q Plot of Residuals from Fitted Point Process Model
Kres

Residual K Function
linnet

Create a Linear Network
markconnect

Mark Connection Function
lansing

Lansing Woods Point Pattern
eroded.areas

Areas of Morphological Erosions
predict.kppm

Prediction from a Fitted Cluster Point Process Model
cut.im

Convert Pixel Image from Numeric to Factor
vcov.kppm

Variance-Covariance Matrix for a Fitted Cluster Point Process Model
rotate.owin

Rotate a Window
Kscaled

Locally Scaled K-function
summary.ppp

Summary of a Point Pattern Dataset
summary.psp

Summary of a Line Segment Pattern Dataset
OrdThresh

Ord's Interaction model
angles.psp

Orientation Angles of Line Segments
dirichlet.weights

Compute Quadrature Weights Based on Dirichlet Tessellation
formula.ppm

Model Formulae for Gibbs Point Process Models
amacrine

Hughes' Amacrine Cell Data
methods.boxx

Methods for Multi-Dimensional Box
multiplicity.ppp

Count Multiplicity of Duplicate Points
pp3

Three Dimensional Point Pattern
nbfires

Point Patterns of New Brunswick Forest Fires
rThomas

Simulate Thomas Process
hist.im

Histogram of Pixel Values in an Image
redwoodfull

California Redwoods Point Pattern (Entire Dataset)
pppdist

Distance Between Two Point Patterns
Kmeasure

Reduced Second Moment Measure
rcell

Simulate Baddeley-Silverman Cell Process
Emark

Diagnostics for random marking
rHardcore

Perfect Simulation of the Hardcore Process
clarkevans

Clark and Evans Aggregation Index
quadscheme

Generate a Quadrature Scheme from a Point Pattern
plot.quad

plot a Spatial Quadrature Scheme
as.data.frame.hyperframe

Coerce Hyperframe to Data Frame
chicago

Chicago Street Crime Data
nncorr

Nearest-Neighbour Correlation Indices of Marked Point Pattern
simulate.kppm

Simulate a Fitted Cluster Point Process Model
tiles

Extract List of Tiles in a Tessellation
rthin

Random Thinning
Fiksel

The Fiksel Interaction
Gmulti

Marked Nearest Neighbour Distance Function
Jdot

Multitype J Function (i-to-any)
Kcross.inhom

Inhomogeneous Cross K Function
MultiStraussHard

The Multitype/Hard Core Strauss Point Process Model
contour.im

Contour plot of pixel image
demopat

Artificial Data Point Pattern
intersect.tess

Intersection of Two Tessellations
localpcf

Local pair correlation function
affine.ppp

Apply Affine Transformation To Point Pattern
inforder.family

Infinite Order Interaction Family
as.box3

Convert Data to Three-Dimensional Box
bw.smoothppp

Cross Validated Bandwidth Selection for Spatial Smoothing
compatible

Test Whether Objects Are Compatible
nztrees

New Zealand Trees Point Pattern
ppx

Multidimensional Space-Time Point Pattern
commonGrid

Determine A Common Spatial Domain And Pixel Resolution
default.rmhcontrol

Set Default Control Parameters for Metropolis-Hastings Algorithm.
pcf.ppp

Pair Correlation Function of Point Pattern
rMaternII

Simulate Matern Model II
msr

Signed or Vector-Valued Measure
scaletointerval

Rescale Data to Lie Between Specified Limits
shift

Apply Vector Translation
tile.areas

Compute Areas of Tiles in a Tessellation
spruces

Spruces Point Pattern
runifdisc

Generate N Uniform Random Points in a Disc
plot.pp3

Plot a three-dimensional point pattern
plot.kstest

Plot a Spatial Kolmogorov-Smirnov Test
ppm

Fit Point Process Model to Data
pcfinhom

Inhomogeneous Pair Correlation Function
rgbim

Create Colour-Valued Pixel Image
redwood

California Redwoods Point Pattern (Ripley's Subset)
print.quad

Print a Quadrature Scheme
shift.ppp

Apply Vector Translation To Point Pattern
scan.test

Spatial Scan Test
urkiola

Urkiola Woods Point Pattern
pointsOnLines

Place Points Evenly Along Specified Lines
osteo

Osteocyte Lacunae Data: Replicated Three-Dimensional Point Patterns
rMosaicSet

Mosaic Random Set
rmhcontrol

Set Control Parameters for Metropolis-Hastings Algorithm.
zapsmall.im

Rounding of Pixel Values
rmhstart

Determine Initial State for Metropolis-Hastings Simulation.
whist

Weighted Histogram
rmh.ppm

Simulate from a Fitted Point Process Model
predict.lppm

Predict Point Process Model on Linear Network
plot.im

Plot a Pixel Image
rGaussPoisson

Simulate Gauss-Poisson Process
plot.listof

Plot a List of Things
rpoispp3

Generate Poisson Point Pattern in Three Dimensions
plot.hyperframe

Plot Entries in a Hyperframe
border

Border Region of a Window
swedishpines

Swedish Pines Point Pattern
duplicated.ppp

Determine Duplicated Points in a Spatial Point Pattern
Jmulti

Marked J Function
affine.psp

Apply Affine Transformation To Line Segment Pattern
blur

Apply Gaussian Blur to a Pixel Image
as.polygonal

Convert a Window to a Polygonal Window
influence.ppm

Influence Measure for Spatial Point Process Model
fitted.slrm

Fitted Probabilities for Spatial Logistic Regression
rotate.psp

Rotate a Line Segment Pattern
Fest

Estimate the empty space function F
closing

Morphological Closing
edges2triangles

List Triangles in a Graph
is.marked.ppp

Test Whether A Point Pattern is Marked
as.mask.psp

Convert Line Segment Pattern to Binary Pixel Mask
crossdist.ppp

Pairwise distances between two different point patterns
default.expand

Compute Expansion Window for Simulation
Jest

Estimate the J-function
centroid.owin

Centroid of a window
letterR

Window in Shape of Letter R
bw.relrisk

Cross Validated Bandwidth Selection for Relative Risk Estimation
bw.stoyan

Stoyan's Rule of Thumb for Bandwidth Selection
fitted.ppm

Fitted Conditional Intensity for Point Process Model
Kdot

Multitype K Function (i-to-any)
unitname

Name for Unit of Length
humberside

Humberside Data on Childhood Leukaemia and Lymphoma
coef.slrm

Coefficients of Fitted Spatial Logistic Regression Model