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spatstat (version 1.30-0)

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

1.30-0

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

December 23rd, 2012

Functions in spatstat (1.30-0)

Emark

Diagnostics for random marking
Kmulti

Marked K-Function
Lest

L-function
affine.ppp

Apply Affine Transformation To Point Pattern
envelope.pp3

Simulation Envelopes of Summary Function for 3D Point Pattern
erosion

Morphological Erosion
Extract.tess

Extract or Replace Subset of Tessellation
fasp.object

Function Arrays for Spatial Patterns
latest.news

Print News About Latest Version of Package
Gdot

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

Distance for a Point Pattern Matching
Kest

K-function
Kmulti.inhom

Inhomogeneous Marked K-Function
methods.pp3

Methods for three-dimensional point patterns
Lcross.inhom

Inhomogeneous Cross Type L Function
miplot

Morishita Index Plot
MultiHard

The Multitype Hard Core Point Process Model
nearestsegment

Find Line Segment Nearest to Each Point
markconnect

Mark Connection Function
Softcore

The Soft Core Point Process Model
Gres

Residual G Function
Kcom

Model Compensator of K Function
Replace.im

Reset Values in Subset of Image
Lcross

Multitype L-function (cross-type)
OrdThresh

Ord's Interaction model
MultiStraussHard

The Multitype/Hard Core Strauss Point Process Model
MultiStrauss

The Multitype Strauss Point Process Model
intersect.tess

Intersection of Two Tessellations
by.ppp

Apply a Function to a Point Pattern Broken Down by Factor
bronzefilter

Bronze gradient filter data
adaptive.density

Intensity Estimate of Point Pattern Using Tessellation
AreaInter

The Area Interaction Point Process Model
coef.ppm

Coefficients of Fitted Point Process Model
ppm

Fit Point Process Model to Data
anova.lppm

ANOVA for Fitted Point Process Models on Linear Network
commonGrid

Determine A Common Spatial Domain And Pixel Resolution
as.ppm

Extract Fitted Point Process Model
blur

Apply Gaussian Blur to a Pixel Image
affine

Apply Affine Transformation
applynbd

Apply Function to Every Neighbourhood in a Point Pattern
closing

Morphological Closing
as.hyperframe

Convert Data to Hyperframe
BadGey

Hybrid Geyer Point Process Model
G3est

Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern
Kcross.inhom

Inhomogeneous Cross K Function
density.ppp

Kernel Smoothed Intensity of Point Pattern
concatxy

Concatenate x,y Coordinate Vectors
dummy.ppm

Extract Dummy Points Used to Fit a Point Process Model
as.ppp

Convert Data To Class ppp
rescale

Convert dataset to another unit of length
crossdist.pp3

Pairwise distances between two different three-dimensional point patterns
flu

Influenza Virus Proteins
clip.infline

Intersect Infinite Straight Lines with a Window
distcdf

Distribution Function of Interpoint Distance
identify.ppp

Identify Points in a Point Pattern
kaplan.meier

Kaplan-Meier Estimator using Histogram Data
matclust.estpcf

Fit the Matern Cluster Point Process by Minimum Contrast Using Pair Correlation
fitted.ppm

Fitted Conditional Intensity for Point Process Model
expand.owin

Apply Expansion Rule
rmhmodel.ppm

Interpret Fitted Model for Metropolis-Hastings Simulation.
bounding.box

Bounding Box of a Window or Point Pattern
bramblecanes

Hutchings' Bramble Canes data
gordon

People in Gordon Square
rotate.owin

Rotate a Window
logLik.ppm

Log Likelihood and AIC for Point Process Model
is.subset.owin

Determine Whether One Window is Contained In Another
methods.units

Methods for Units
midpoints.psp

Midpoints of Line Segment Pattern
crossdist.lpp

Pairwise distances between two point patterns on a linear network
nnwhich

Nearest neighbour
clickjoin

Interactively join vertices on a plot
scalardilate

Apply Scalar Dilation
npfun

Dummy Function Returns Number of Points
mincontrast

Method of Minimum Contrast
sumouter

Compute Quadratic Forms
nndist.psp

Nearest neighbour distances between line segments
Extract.im

Extract Subset of Image
longleaf

Longleaf Pines Point Pattern
periodify

Make Periodic Copies of a Spatial Pattern
methods.lpp

Methods for Point Patterns on a Linear Network
pcf.fasp

Pair Correlation Function obtained from array of K functions
summary.psp

Summary of a Line Segment Pattern Dataset
nncross

Nearest Neighbours Between Two Patterns
varblock

Estimate Variance of Summary Statistic by Subdivision
pcfdot

Multitype pair correlation function (i-to-any)
Extract.msr

Extract Subset of Signed or Vector Measure
simplenet

Simple Example of Linear Network
crossdist

Pairwise distances
Poisson

Poisson Point Process Model
LennardJones

The Lennard-Jones Potential
dfbetas.ppm

Parameter influence measure
envelope.lpp

Envelope for Point Patterns on Linear Network
StraussHard

The Strauss / Hard Core Point Process Model
plot.kstest

Plot a Spatial Kolmogorov-Smirnov Test
predict.slrm

Predicted or Fitted Values from Spatial Logistic Regression
dirichlet

Dirichlet Tessellation of Point Pattern
pixelquad

Quadrature Scheme Based on Pixel Grid
plot.pp3

Plot a three-dimensional point pattern
hybrid.family

Hybrid Interaction Family
plot.tess

Plot a tessellation
imcov

Spatial Covariance of a Pixel Image
bdist.points

Distance to Boundary of Window
istat

Point and Click Interface for Exploratory Analysis of Point Pattern
rMaternII

Simulate Matern Model II
perimeter

Perimeter Length of Window
runifpoint3

Generate N Uniform Random Points in Three Dimensions
ord.family

Ord Interaction Process Family
border

Border Region of a Window
bw.relrisk

Cross Validated Bandwidth Selection for Relative Risk Estimation
chop.tess

Subdivide a Window or Tessellation using a Set of Lines
data.ppm

Extract Original Data from a Fitted Point Process Model
is.ppp

Test Whether An Object Is A Point Pattern
shapley

Galaxies in the Shapley Supercluster
quadrat.test

Dispersion Test for Spatial Point Pattern Based on Quadrat Counts
smooth.fv

Apply Smoothing to Function Values
lengths.psp

Lengths of Line Segments
rMosaicSet

Mosaic Random Set
rescale.im

Convert Pixel Image to Another Unit of Length
levelset

Level Set of a Pixel Image
diameter

Diameter of an Object
Extract.fv

Extract Subset of Function Values
Fest

Estimate the empty space function F
rpoint

Generate N Random Points
compatible.fasp

Test Whether Function Arrays Are Compatible
nearest.raster.point

Find Pixel Nearest to a Given Point
fitted.slrm

Fitted Probabilities for Spatial Logistic Regression
areaLoss

Difference of Disc Areas
bw.scott

Scott's Rule for Bandwidth Selection for Kernel Density
is.marked.ppp

Test Whether A Point Pattern is Marked
chorley

Chorley-Ribble Cancer Data
markcorr

Mark Correlation Function
nncorr

Nearest-Neighbour Correlation Indices of Marked Point Pattern
profilepl

Profile Maximum Pseudolikelihood
rNeymanScott

Simulate Neyman-Scott Process
rpoispp

Generate Poisson Point Pattern
shift.im

Apply Vector Translation To Pixel Image
rgbim

Create Colour-Valued Pixel Image
tiles

Extract List of Tiles in a Tessellation
spatstat-package

The Spatstat Package
pairdist

Pairwise distances
pairdist.lpp

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

Connected components of an image or window
slrm

Spatial Logistic Regression
pool.envelope

Pool Data from Several Envelopes
stieltjes

Compute Integral of Function Against Cumulative Distribution
corners

Corners of a rectangle
append.psp

Combine Two Line Segment Patterns
crossdist.ppx

Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
with.fv

Evaluate an Expression in a Function Table
distmap

Distance Map
im.object

Class of Images
anova.ppm

ANOVA for Fitted Point Process Models
as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame
predict.ppm

Prediction from a Fitted Point Process Model
clarkevans.test

Clark and Evans Test
crossdist.default

Pairwise distances between two different sets of points
plot.ppm

plot a Fitted Point Process Model
rpoisline

Generate Poisson Random Line Process
as.rectangle

Window Frame
as.tess

Convert Data To Tessellation
lpp

Create Point Pattern on Linear Network
exactMPLEstrauss

Exact Maximum Pseudolikelihood Estimate for Stationary Strauss Process
fv.object

Function Value Table
density.psp

Kernel Smoothing of Line Segment Pattern
as.function.fv

Convert Function Value Table to Function
angles.psp

Orientation Angles of Line Segments
diagnose.ppm

Diagnostic Plots for Fitted Point Process Model
clickpoly

Interactively Define a Polygon
print.quad

Print a Quadrature Scheme
as.polygonal

Convert a Window to a Polygonal Window
allstats

Calculate four standard summary functions of a point pattern.
influence.ppm

Influence Measure for Spatial Point Process Model
bounding.box.xy

Convex Hull of Points
redwoodfull

California Redwoods Point Pattern (Entire Dataset)
residualspaper

Data and Code From JRSS Discussion Paper on Residuals
is.stationary

Recognise Stationary and Poisson Point Process Models
is.rectangle

Determine Type of Window
Extract.ppp

Extract or Replace Subset of Point Pattern
discpartarea

Area of Part of Disc
ippm

Optimise Irregular Trend Parameters in Point Process Model
finpines

Pine saplings in Finland.
quad.ppm

Extract Quadrature Scheme Used to Fit a Point Process Model
edges2triangles

List Triangles in a Graph
compareFit

Residual Diagnostics for Multiple Fitted Models
leverage.ppm

Leverage Measure for Spatial Point Process Model
by.im

Apply Function to Image Broken Down by Factor
envelope

Simulation Envelopes of Summary Function
compatible.im

Test Whether Pixel Images Are Compatible
DiggleGatesStibbard

Diggle-Gates-Stibbard Point Process Model
eval.fv

Evaluate Expression Involving Functions
intersect.owin

Intersection, Union or Set Subtraction of Two Windows
dirichlet.weights

Compute Quadrature Weights Based on Dirichlet Tessellation
rDGS

Perfect Simulation of the Diggle-Gates-Stibbard Process
disc

Circular Window
Jcross

Multitype J Function (i-to-j)
endpoints.psp

Endpoints of Line Segment Pattern
Extract.lpp

Extract Subset of Point Pattern on Linear Network
rmpoispp

Generate Multitype Poisson Point Pattern
Geyer

Geyer's Saturation Point Process Model
rpoislinetess

Poisson Line Tessellation
Kest.fft

K-function using FFT
iplot

Point and Click Interface for Displaying a Point Pattern
Kdot.inhom

Inhomogeneous Multitype K Dot Function
ganglia

Beta Ganglion Cells in Cat Retina, Old Version
Kmodel

K function of a model
hyperframe

Hyper Data Frame
hist.im

Histogram of Pixel Values in an Image
rmh

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

Perspective Plot of Pixel Image
gorillas

Gorilla Nesting Sites
mean.im

Maximum, Minimum, Mean, Median, Range or Sum of Pixel Values in an Image
is.im

Test Whether An Object Is A Pixel Image
harmonise.im

Make Pixel Images Compatible
fv

Create a Function Value Table
split.ppp

Divide Point Pattern into Sub-patterns
unmark

Remove Marks
pairdist.default

Pairwise distances
kppm

Fit Cluster or Cox Point Process Model
pairwise.family

Pairwise Interaction Process Family
is.marked.ppm

Test Whether A Point Process Model is Marked
incircle

Find Largest Circle Inside Window
rshift

Random Shift
km.rs

Kaplan-Meier and Reduced Sample Estimator using Histograms
linearK

Linear K Function
ants

Harkness-Isham ants' nests data
idw

Inverse-distance weighted smoothing of observations at irregular points
humberside

Humberside Data on Childhood Leukaemia and Lymphoma
inforder.family

Infinite Order Interaction Family
localKinhom

Inhomogeneous Neighbourhood Density Function
plot.layered

Layered Plot
runifpointx

Generate N Uniform Random Points in Any Dimensions
area.owin

Area of a Window
methods.ppx

Methods for Multidimensional Space-Time Point Patterns
linnet

Create a Linear Network
localpcf

Local pair correlation function
lineardisc

Compute Disc of Given Radius in Linear Network
rmpoint

Generate N Random Multitype Points
marks

Marks of a Point Pattern
integral.im

Integral of a Pixel Image
lohboot

Bootstrap Confidence Bands for Summary Function
as.data.frame.ppp

Coerce Point Pattern to a Data Frame
methods.lppm

Methods for Fitted Point Process Models on a Linear Network
localK

Neighbourhood density function
model.matrix.ppm

Extract Design Matrix from Point Process Model
spatstat.options

Internal Options in Spatstat Package
linim

Create Pixel Image on Linear Network
colourmap

Colour Lookup Tables
clmfires

Castilla-La Mancha Forest Fires
methods.rho2hat

Methods for Intensity Functions of Two Spatial Covariates
logLik.slrm

Loglikelihood of Spatial Logistic Regression
owin

Create a Window
lppm

Fit Point Process Model to Point Pattern on Linear Network
coef.slrm

Coefficients of Fitted Spatial Logistic Regression Model
model.depends

Identify Covariates Involved in each Model Term
rStrauss

Perfect Simulation of the Strauss Process
methods.rhohat

Methods for Intensity Functions of Spatial Covariate
unitname

Name for Unit of Length
pcfcross.inhom

Inhomogeneous Multitype Pair Correlation Function (Cross-Type)
intensity

Intensity of a Dataset or a Model
unnormdensity

Weighted kernel smoother
density.splitppp

Kernel Smoothed Intensity of Split Point Pattern
pixellate.ppp

Convert Point Pattern to Pixel Image
osteo

Osteocyte Lacunae Data: Replicated Three-Dimensional Point Patterns
vargamma.estK

Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
raster.x

Cartesian Coordinates for a Pixel Raster
summary.ppp

Summary of a Point Pattern Dataset
ponderosa

Ponderosa Pine Tree Point Pattern
paracou

Kimboto trees at Paracou, French Guiana
zapsmall.im

Rounding of Pixel Values
pairdist.psp

Pairwise distances between line segments
ppx

Multidimensional Space-Time Point Pattern
pairdist.ppx

Pairwise Distances in Any Dimensions
dilated.areas

Areas of Morphological Dilations
pcf.ppp

Pair Correlation Function of Point Pattern
diameter.boxx

Geometrical Calculations for Multi-Dimensional Box
rmh.ppm

Simulate from a Fitted Point Process Model
delaunay

Delaunay Triangulation of Point Pattern
pool

Pool Data
nnwhich.ppx

Nearest Neighbours in Any Dimensions
simulate.kppm

Simulate a Fitted Cluster Point Process Model
relrisk

Nonparametric Estimate of Spatially-Varying Relative Risk
split.im

Divide Image Into Sub-images
quadscheme

Generate a Quadrature Scheme from a Point Pattern
eval.fasp

Evaluate Expression Involving Function Arrays
pixellate

Convert Spatial Object to Pixel Image
plot.listof

Plot a List of Things
rCauchy

Simulate Neyman-Scott Point Process with Cauchy cluster kernel
rStraussHard

Perfect Simulation of the Strauss-Hardcore Process
gpc2owin

Convert Polygonal Region into Different Format
rlinegrid

Generate grid of parallel lines with random displacement
pool.fasp

Pool Data from Several Function Arrays
summary.quad

Summarizing a Quadrature Scheme
setcov

Set Covariance of a Window
rpoislpp

Poisson Point Process on a Linear Network
pp3

Three Dimensional Point Pattern
simplify.owin

Approximate a Polygon by a Simpler Polygon
summary.splitppp

Summary of a Split Point Pattern
Extract.quad

Subset of Quadrature Scheme
pppdist

Distance Between Two Point Patterns
valid.ppm

Check Whether Point Process Model is Valid
ripras

Estimate window from points alone
quadrats

Divide Region into Quadrats
identify.psp

Identify Segments in a Line Segment Pattern
Finhom

Inhomogeneous Empty Space Function
print.psp

Print Brief Details of a Line Segment Pattern Dataset
Extract.psp

Extract Subset of Line Segment Pattern
intensity.ppm

Intensity of Fitted Point Process Model
rotate.psp

Rotate a Line Segment Pattern
as.mask.psp

Convert Line Segment Pattern to Binary Pixel Mask
volume

Volume of an Object
is.marked

Test Whether Marks Are Present
shift.ppp

Apply Vector Translation To Point Pattern
rmhmodel.list

Define Point Process Model for Metropolis-Hastings Simulation.
Tstat

Third order summary statistic
rmhcontrol

Set Control Parameters for Metropolis-Hastings Algorithm.
clusterset

Allard-Fraley Estimator of Cluster Feature
Fiksel

The Fiksel Interaction
distmap.owin

Distance Map of Window
linearpcfinhom

Inhomogeneous Linear Pair Correlation Function
simulate.slrm

Simulate a Fitted Spatial Logistic Regression Model
rshift.splitppp

Randomly Shift a List of Point Patterns
rshift.psp

Randomly Shift a Line Segment Pattern
duplicated.ppp

Determine Duplicated Points in a Spatial Point Pattern
unique.ppp

Extract Unique Points from a Spatial Point Pattern
marktable

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

Update a Fitted Point Process Model
update.kppm

Update a Fitted Cluster Point Process Model
reflect

Reflect In Origin
vertices

Vertices of a Window
smooth.msr

Smooth a Signed or Vector-Valued Measure
reach

Interaction Distance of a Point Process
Saturated

Saturated Pairwise Interaction model
owin.object

Class owin
superimpose

Superimpose Several Geometric Patterns
flipxy

Exchange X and Y Coordinates
whist

Weighted Histogram
psst

Pseudoscore Diagnostic For Fitted Model against General Alternative
anova.slrm

Analysis of Deviance for Spatial Logistic Regression Models
rknn

Theoretical Distribution of Nearest Neighbour Distance
vcov.slrm

Variance-Covariance Matrix for a Fitted Spatial Logistic Regression
anemones

Beadlet Anemones Data
methods.boxx

Methods for Multi-Dimensional Box
is.convex

Test Whether a Window is Convex
summary.ppm

Summarizing a Fitted Point Process Model
nnfun

Nearest Neighbour Map as a Function
default.dummy

Generate a Default Pattern of Dummy Points
psp

Create a Line Segment Pattern
as.matrix.im

Convert Pixel Image to Matrix or Array
heather

Diggle's Heather Data
methods.kppm

Methods for Cluster Point Process Models
bw.stoyan

Stoyan's Rule of Thumb for Bandwidth Selection
shift.psp

Apply Vector Translation To Line Segment Pattern
as.matrix.owin

Convert Pixel Image to Matrix
opening

Morphological Opening
rVarGamma

Simulate Neyman-Scott Point Process with Variance Gamma cluster kernel
bw.smoothppp

Cross Validated Bandwidth Selection for Spatial Smoothing
collapse.fv

Collapse Several Function Tables into One
contour.im

Contour plot of pixel image
convexhull.xy

Convex Hull of Points
quad.object

Class of Quadrature Schemes
rMaternI

Simulate Matern Model I
default.expand

Default Expansion Rule for Simulation of Model
pppmatching

Create a Point Matching
rcell

Simulate Baddeley-Silverman Cell Process
diameter.box3

Geometrical Calculations for Three-Dimensional Box
diameter.owin

Diameter of a Window
gridweights

Compute Quadrature Weights Based on Grid Counts
rat

Ratio object
rSSI

Simulate Simple Sequential Inhibition
Jmulti

Marked J Function
spatstat-internal

Internal spatstat functions
letterR

Window in Shape of Letter R
runiflpp

Uniform Random Points on a Linear Network
murchison

Murchison gold deposits
vcov.kppm

Variance-Covariance Matrix for a Fitted Cluster Point Process Model
Hybrid

Hybrid Interaction Point Process Model
Strauss

The Strauss Point Process Model
thomas.estK

Fit the Thomas Point Process by Minimum Contrast
Triplets

The Triplet Point Process Model
funxy

Spatial Function Class
trim.rectangle

Cut margins from rectangle
clarkevans

Clark and Evans Aggregation Index
union.quad

Union of Data and Dummy Points
pcfcross

Multitype pair correlation function (cross-type)
will.expand

Test Expansion Rule
as.box3

Convert Data to Three-Dimensional Box
plot.kppm

Plot a fitted cluster point process
vcov.ppm

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

Convert Data To Class owin
plot.owin

Plot a Spatial Window
bdist.pixels

Distance to Boundary of Window
centroid.owin

Centroid of a window
bei

Tropical rain forest trees
ppm.object

Class of Fitted Point Process Models
print.im

Print Brief Details of an Image
bdist.tiles

Distance to Boundary of Window
boxx

Multi-Dimensional Box
print.ppp

Print Brief Details of a Point Pattern Dataset
cut.im

Convert Pixel Image from Numeric to Factor
eroded.areas

Areas of Morphological Erosions
rHardcore

Perfect Simulation of the Hardcore Process
layered

Create List of Plotting Layers
rmhmodel.default

Build Point Process Model for Metropolis-Hastings Simulation.
methods.linnet

Methods for Linear Networks
model.frame.ppm

Extract the Variables in a Point Process Model
rotate.ppp

Rotate a Point Pattern
rpoisppOnLines

Generate Poisson Point Pattern on Line Segments
rshift.ppp

Randomly Shift a Point Pattern
pairsat.family

Saturated Pairwise Interaction Point Process Family
pcf3est

Pair Correlation Function of a Three-Dimensional Point Pattern
Kdot

Multitype K Function (i-to-any)
Kscaled

Locally Scaled K-function
suffstat

Sufficient Statistic of Point Process Model
Linhom

L-function
ppp.object

Class of Point Patterns
selfcrossing.psp

Crossing Points in a Line Segment Pattern
Ldot

Multitype L-function (i-to-any)
predict.lppm

Predict Point Process Model on Linear Network
SatPiece

Piecewise Constant Saturated Pairwise Interaction Point Process Model
as.data.frame.im

Convert Pixel Image to Data Frame
cauchy.estpcf

Fit the Neyman-Scott cluster process with Cauchy kernel
compatible.fv

Test Whether Function Objects Are Compatible
print.ppm

Print a Fitted Point Process Model
progressreport

Print Progress Reports
distmap.psp

Distance Map of Line Segment Pattern
rDiggleGratton

Perfect Simulation of the Diggle-Gratton Process
rescale.owin

Convert Window to Another Unit of Length
lansing

Lansing Woods Point Pattern
contour.listof

Plot a List of Things
Gcross

Multitype Nearest Neighbour Distance Function (i-to-j)
licence.polygons

Restricted Licence Conditions for Polygon Calculations
lut

Lookup Tables
Jinhom

Inhomogeneous J-function
PairPiece

The Piecewise Constant Pairwise Interaction Point Process Model
nnwhich.pp3

Nearest neighbours in three dimensions
scan.test

Spatial Scan Test
bind.fv

Combine Function Value Tables
spokes

Spokes pattern of dummy points
spatstat-deprecated

Deprecated spatstat functions
parres

Partial Residuals for Point Process Model
clickppp

Interactively Add Points
redwood

California Redwoods Point Pattern (Ripley's Subset)
convexhull

Convex Hull
deltametric

Delta Metric
demopat

Artificial Data Point Pattern
rlabel

Random Re-Labelling of Point Pattern
plot.bermantest

Plot Result of Berman Test
simulate.ppm

Simulate a Fitted Gibbs Point Process Model
envelope.envelope

Recompute Envelopes
plot.envelope

Plot a Simulation Envelope
split.ppx

Divide Multidimensional Point Pattern into Sub-patterns
pointsOnLines

Place Points Evenly Along Specified Lines
ewcdf

Weighted Empirical Cumulative Distribution Function
intensity.ppp

Empirical Intensity of Point Pattern
is.multitype

Test whether Object is Multitype
is.owin

Test Whether An Object Is A Window
project.ppm

Force Point Process Model to be Valid
markvario

Mark Variogram
rescale.ppp

Convert Point Pattern to Another Unit of Length
rotate

Rotate
Extract.listof

Extract or Replace Subset of a List of Things
Hest

Spherical Contact Distribution Function
Jdot

Multitype J Function (i-to-any)
nndist

Nearest neighbour distances
nztrees

New Zealand Trees Point Pattern
as.data.frame.hyperframe

Coerce Hyperframe to Data Frame
rmh.default

Simulate Point Process Models using the Metropolis-Hastings Algorithm.
as.im

Convert to Pixel Image
pcfinhom

Inhomogeneous Pair Correlation Function
tess

Create a Tessellation
rmhmodel

Define Point Process Model for Metropolis-Hastings Simulation.
bw.frac

Bandwidth Selection Based on Window Geometry
discretise

Safely Convert Point Pattern Window to Binary Mask
infline

Infinite Straight Lines
plot.linim

Plot Pixel Image on Linear Network
hamster

Aherne's hamster tumour data
Ldot.inhom

Inhomogeneous Multitype L Dot Function
eem

Exponential Energy Marks
plot.splitppp

Plot a List of Point Patterns
pool.quadrattest

Pool Several Quadrat Tests
square

Square Window
kstest.ppm

Kolmogorov-Smirnov Test for Point Process Model
methods.funxy

Methods for Spatial Functions
Kcross

Multitype K Function (Cross-type)
msr

Signed or Vector-Valued Measure
Kmeasure

Reduced Second Moment Measure
quadratcount

Quadrat counting for a point pattern
interp.im

Interpolate a Pixel Image
addvar

Added Variable Plot for Point Process Model
quadratresample

Resample a Point Pattern by Resampling Quadrats
affine.im

Apply Affine Transformation To Pixel Image
areaGain

Difference of Disc Areas
pairdist.pp3

Pairwise distances in Three Dimensions
rmhexpand

Specify Simulation Window or Expansion Rule
pairdist.ppp

Pairwise distances
as.linim

Convert to Pixel Image on Linear Network
rotate.im

Rotate a Pixel Image
cauchy.estK

Fit the Neyman-Scott cluster process with Cauchy kernel
colourtools

Convert and Compare Colours in Different Formats
shift.owin

Apply Vector Translation To Window
rMosaicField

Mosaic Random Field
complement.owin

Take Complement of a Window
delaunay.distance

Distance on Delaunay Triangulation
pixellate.psp

Convert Line Segment Pattern to Pixel Image
plot.im

Plot a Pixel Image
urkiola

Urkiola Woods Point Pattern
plot.msr

Plot a Signed or Vector-Valued Measure
predict.kppm

Prediction from a Fitted Cluster Point Process Model
dilation

Morphological Dilation
vargamma.estpcf

Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
print.owin

Print Brief Details of a Spatial Window
distfun

Distance Map as a Function
Ginhom

Inhomogeneous Nearest Neighbour Function
effectfun

Compute Fitted Effect of a Spatial Covariate in a Point Process Model
spruces

Spruces Point Pattern
distmap.ppp

Distance Map of Point Pattern
psp.object

Class of Line Segment Patterns
methods.slrm

Methods for Spatial Logistic Regression Models
formula.ppm

Model Formulae for Gibbs Point Process Models
quadrat.test.splitppp

Dispersion Test of CSR for Split Point Pattern Based on Quadrat Counts
reduced.sample

Reduced Sample Estimator using Histogram Data
npoints

Number of Points in a Point Pattern
im

Create a Pixel Image Object
hyytiala

Scots pines and other trees at Hyytiala
is.empty

Test Whether An Object Is Empty
rstrat

Simulate Stratified Random Point Pattern
is.ppm

Test Whether An Object Is A Fitted Point Process Model
linearpcf

Linear Pair Correlation Function
residuals.ppm

Residuals for Fitted Point Process Model
markcorrint

Mark Correlation Integral
rPoissonCluster

Simulate Poisson Cluster Process
scaletointerval

Rescale Data to Lie Between Specified Limits
mucosa

Cells in Gastric Mucosa
nndist.pp3

Nearest neighbour distances in three dimensions
fryplot

Fry Plot of Point Pattern
pcfdot.inhom

Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type)
plot.influence.ppm

Plot Influence Measure
tile.areas

Compute Areas of Tiles in a Tessellation
plot.linnet

Plot a linear network
plot.psp

plot a Spatial Line Segment Pattern
pool.rat

Pool Data from Several Ratio Objects
runifpointOnLines

Generate N Uniform Random Points On Line Segments
runifdisc

Generate N Uniform Random Points in a Disc
summary.listof

Summary of a List of Things
with.hyperframe

Evaluate an Expression in Each Row of a Hyperframe
Extract.ppx

Extract Subset of Multidimensional Point Pattern
plot.fasp

Plot a Function Array
pppmatching.object

Class of Point Matchings
Gcom

Model Compensator of Nearest Neighbour Function
Gmulti

Marked Nearest Neighbour Distance Function
affine.owin

Apply Affine Transformation To Window
Jest

Estimate the J-function
as.hyperframe.ppx

Extract coordinates and marks of multidimensional point pattern
crossdist.psp

Pairwise distances between two different line segment patterns
dclf.test

Diggle-Cressie-Loosmore-Ford and Maximum Absolute Deviation Tests
default.rmhcontrol

Set Default Control Parameters for Metropolis-Hastings Algorithm.
eval.im

Evaluate Expression Involving Pixel Images
gridcentres

Rectangular grid of points
compatible

Test Whether Objects Are Compatible
nbfires

Point Patterns of New Brunswick Forest Fires
nndist.ppx

Nearest Neighbour Distances in Any Dimensions
pcf

Pair Correlation Function
plot.leverage.ppm

Plot Leverage Function
plot.slrm

Plot a Fitted Spatial Logistic Regression
project2segment

Move Point To Nearest Line
rLGCP

Simulate Log-Gaussian Cox Process
rhohat

Smoothing Estimate of Covariate Transformation
rho2hat

Smoothed Relative Density of Pairs of Covariate Values
rmhstart

Determine Initial State for Metropolis-Hastings Simulation.
rpoispp3

Generate Poisson Point Pattern in Three Dimensions
rsyst

Simulate systematic random point pattern
plot.ppp

plot a Spatial Point Pattern
sharpen

Data Sharpening of Point Pattern
shift

Apply Vector Translation
smooth.ppp

Spatial smoothing of observations at irregular points
solutionset

Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True
summary.owin

Summary of a Spatial Window
scanpp

Read Point Pattern From Data File
Hardcore

The Hard Core Point Process Model
DiggleGratton

Diggle-Gratton model
which.max.im

Identify Pixelwise Maximum of Several Pixel Images
K3est

K-function of a Three-Dimensional Point Pattern
Gest

Nearest Neighbour Distance Function G
alltypes

Calculate Summary Statistic for All Types in a Multitype Point Pattern
psstG

Pseudoscore Diagnostic For Fitted Model against Saturation Alternative
cells

Biological Cells Point Pattern
as.mask

Pixel Image Approximation of a Window
is.multitype.ppm

Test Whether A Point Process Model is Multitype
is.multitype.ppp

Test Whether A Point Pattern is Multitype
japanesepines

Japanese Pines Point Pattern
lgcp.estK

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

Plot Function Values
nsegments

Number of Line Segments in a Line Segment Pattern
ppp

Create a Point Pattern
psstA

Pseudoscore Diagnostic For Fitted Model against Area-Interaction Alternative
rescue.rectangle

Convert Window Back To Rectangle
box3

Three-Dimensional Box
rjitter

Random Perturbation of a Point Pattern
thomas.estpcf

Fit the Thomas Point Process by Minimum Contrast
runifpoint

Generate N Uniform Random Points
markstat

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

Pixel Values Along a Transect
Extract.fasp

Extract Subset of Function Array
Extract.splitppp

Extract or Replace Sub-Patterns
F3est

Empty Space Function of a Three-Dimensional Point Pattern
Gfox

Foxall's Distance Functions
LambertW

Lambert's W Function
Ord

Generic Ord Interaction model
affine.psp

Apply Affine Transformation To Line Segment Pattern
amacrine

Hughes' Amacrine Cell Data
cbind.hyperframe

Combine Hyperframes by Rows or by Columns
chicago

Chicago Street Crime Data
crossdist.ppp

Pairwise distances between two different point patterns
crossing.psp

Crossing Points of Two Line Segment Patterns
model.images

Compute Images of Constructed Covariates
multiplicity.ppp

Count Multiplicity of Duplicate Points
pairs.im

Scatterplot Matrix for Pixel Images
plot.hyperframe

Plot Entries in a Hyperframe
plot.quad

plot a Spatial Quadrature Scheme
rMatClust

Simulate Matern Cluster Process
sidelengths.owin

Side Lengths of Enclosing Rectangle of a Window
summary.im

Summarizing a Pixel Image
update.rmhcontrol

Update Control Parameters of Metropolis-Hastings Algorithm
waka

Trees in Waka national park
rthin

Random Thinning
as.interact

Extract Interaction Structure
rGaussPoisson

Simulate Gauss-Poisson Process
plot.plotppm

Plot a plotppm Object Created by plot.ppm
copper

Berman-Huntington points and lines data
linearKinhom

Inhomogeneous Linear K Function
rThomas

Simulate Thomas Process
Iest

Estimate the I-function
Kinhom

Inhomogeneous K-function
Kres

Residual K Function
Pairwise

Generic Pairwise Interaction model
betacells

Beta Ganglion Cells in Cat Retina
bw.diggle

Cross Validated Bandwidth Selection for Kernel Density
circumradius

Circumradius and Diameter of a Linear Network
coords

Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern
cut.ppp

Classify Points in a Point Pattern
convolve.im

Convolution of Pixel Images
dummify

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

Extract the Interaction from a Fitted Point Process Model
formula.fv

Extract or Change the Plot Formula for a Function Value Table
inside.owin

Test Whether Points Are Inside A Window
lgcp.estpcf

Fit a Log-Gaussian Cox Point Process by Minimum Contrast
methods.box3

Methods for Three-Dimensional Box
matclust.estK

Fit the Matern Cluster Point Process by Minimum Contrast
marks.psp

Marks of a Line Segment Pattern
lurking

Lurking variable plot
model.matrix.slrm

Extract Design Matrix from Spatial Logistic Regression Model
nnclean

Nearest Neighbour Clutter Removal
pcf.fv

Pair Correlation Function obtained from K Function
plot.colourmap

Plot a Colour Map
qqplot.ppm

Q-Q Plot of Residuals from Fitted Point Process Model
pixellate.owin

Convert Window to Pixel Image
quantile.im

Sample Quantiles of Pixel Image
rescale.psp

Convert Line Segment Pattern to Another Unit of Length
rpoisppx

Generate Poisson Point Pattern in Any Dimensions
simdat

Simulated Point Pattern
swedishpines

Swedish Pines Point Pattern
triplet.family

Triplet Interaction Family
as.psp

Convert Data To Class psp
is.hybrid

Test Whether Object is a Hybrid
harmonic

Basis for Harmonic Functions
bermantest

Berman's Tests for Point Process Model