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spatstat (version 1.9-0)

Spatial Point Pattern analysis, model-fitting and simulation

Description

Spatial Point Pattern data analysis, modelling and simulation including multitype/marked points and spatial covariates

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Version

Install

install.packages('spatstat')

Monthly Downloads

16,590

Version

1.9-0

License

GPL version 2 or newer

Maintainer

Last Published

March 22nd, 2025

Functions in spatstat (1.9-0)

Gcross

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

Marked Nearest Neighbour Distance Function
Kmulti

Marked K-Function
bounding.box

Bounding Box of a Window
dirichlet.weights

Compute Quadrature Weights Based on Dirichlet Tessellation
PairPiece

The Piecewise Constant Pairwise Interaction Point Process Model
Kmeasure

Reduced Second Moment Measure
is.marked.ppm

Test Whether A Point Process Model is Marked
demopat

Artificial Data Point Pattern
is.marked

Test Whether Marks Are Present
plot.psp

plot a Spatial Line Segment Pattern
plot.splitppp

Plot a List of Point Patterns
Jest

Estimate the J-function
Ord

Generic Ord Interaction model
lansing

Lansing Woods Point Pattern
ppm.object

Class of Fitted Point Process Models
lurking

Lurking variable plot
Pairwise

Generic Pairwise Interaction model
bramblecanes

Hutchings' Bramble Canes data
print.quad

Print a Quadrature Scheme
plot.ppp

plot a Spatial Point Pattern
rMaternI

Simulate Matern Model I
bdist.points

Distance to Boundary of Window
rmpoint

Generate N Random Multitype Points
rescue.rectangle

Convert Window Back To Rectangle
rmh.default

Simulate Point Process Models using the Metropolis-Hastings Algorithm.
square

Square Window
Jmulti

Marked J Function
crossdist.psp

Pairwise distances between two different line segment patterns
crossdist

Pairwise distances
ants

Harkness-Isham ants' nests data
Saturated

Saturated Pairwise Interaction model
spatstat-deprecated

Deprecated spatstat functions
bdist.pixels

Distance to Boundary of Window
density.psp

Kernel Smoothing of Line Segment Pattern
distmap

Distance Map
longleaf

Longleaf Pines Point Pattern
im

Create a Pixel Image Object
pcf.fv

Pair Correlation Function obtained from K Function
amacrine

Hughes' Amacrine Cell Data
swedishpines

Swedish Pines Point Pattern
plot.im

Plot a Pixel Image
is.ppp

Test Whether An Object Is A Point Pattern
reduced.sample

Reduced Sample Estimator using Histogram Data
levelset

Level Set of a Pixel Image
pcf.ppp

Pair Correlation Function of Point Pattern
ord.family

Ord Interaction Process Family
rmhstart

Determine Initial State for Metropolis-Hastings Simulation.
default.dummy

Generate a Default Pattern of Dummy Points
as.ppp

Convert Data To Class ppp
rshift

Random Shift
diameter

Diameter of a Window Frame
Softcore

The Soft Core Point Process Model
rSSI

Simple Sequential Inhibition
affine.psp

Apply Affine Transformation To Line Segment Pattern
plot.ppm

plot a Fitted Point Process Model
shift.psp

Apply Vector Translation To Line Segment Pattern
rmhcontrol

Set Control Parameters for Metropolis-Hastings Algorithm.
rcell

Simulate Baddeley-Silverman Cell Process
residualspaper

Data and Code From JRSS Discussion Paper on Residuals
rshift.splitppp

Randomly Shift a List of Point Patterns
append.psp

Combine Two Line Segment Patterns
as.psp

Convert Data To Class psp
shift.owin

Apply Vector Translation To Window
rshift.ppp

Randomly Shift a Point Pattern
chorley

Chorley-Ribble Cancer Data
corners

Corners of a rectangle
dilate.owin

Dilate a Window
MultiStraussHard

The Multitype/Hard Core Strauss Point Process Model
owin.object

Class owin
betacells

Beta Ganglion Cells in Cat Retina
unmark

Remove Marks from a Marked Point Pattern
rMaternII

Simulate Matern Model II
shift.ppp

Apply Vector Translation To Point Pattern
coef.ppm

Coefficients of Fitted Point Process Model
copper

Berman-Huntington points and lines data
density.ppp

Kernel Smoothed Intensity of Point Pattern
im.object

Class of Images
Gdot

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

Ord's Interaction model
letterR

Window in Shape of Letter R
concatxy

Concatenate x,y Coordinate Vectors
raster.x

Cartesian Coordinates for a Pixel Raster
alltypes

Calculate Statistic for All Types in a Multitype Point Pattern
Jcross

Multitype J Function (i-to-j)
distmap.ppp

Distance Map of Point Pattern
rlabel

Random Re-Labelling of Point Pattern
affine.ppp

Apply Affine Transformation To Point Pattern
crossdist.ppp

Pairwise distances between two different point patterns
hamster

Aherne's hamster tumour data
hist.im

Histogram of Pixel Values in an Image
runifpoint

Generate N Uniform Random Points
erode.owin

Erode a Window
pcf.fasp

Pair Correlation Function obtained from array of K functions
as.im

Convert to Pixel Image
rotate.ppp

Rotate a Point Pattern
km.rs

Kaplan-Meier and Reduced Sample Estimator using Histograms
distmap.owin

Distance Map of Window
duplicated.ppp

Determine Duplicated Points in a Spatial Point Pattern
subset.fv

Extract Subset of Function Values
setmarks

Set or Reset the Marks in a Point Pattern
summary.im

Summarizing a Pixel Image
lengths.psp

Lengths of Line Segments
harmonic

Basis for Harmonic Functions
gridcentres

Rectangular grid of points
pairdist.default

Pairwise distances
pairsat.family

Saturated Pairwise Interaction Point Process Family
ppm

Fit Point Process Model to Data
Jdot

Multitype J Function (i-to-any)
spatstat

The Spatstat Package
plot.fv

Plot Function Valuesn
is.im

Test Whether An Object Is A Pixel Image
markstat

Summarise Marks in Every Neighbourhood in a Point Pattern
print.ppp

Print Brief Details of a Point Pattern Dataset
quad.ppm

Extract Quadrature Scheme Used to Fit a Point Process Model
pairwise.family

Pairwise Interaction Process Family
print.im

Print Brief Details of an Image
psp

Create a Line Segment Pattern
residuals.ppm

Residuals for Fitted Point Process Model
qqplot.ppm

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

Systematic random point pattern
quantile.im

Sample Quantiles of Pixel Image
redwoodfull

California Redwoods Point Pattern (Entire Dataset)
quadscheme

Generate a Quadrature Scheme from a Point Pattern
subset.fasp

Extract Subset of Function Array
subset.psp

Extract Subset of Line Segment Pattern
rmpoispp

Generate Multitype Poisson Point Pattern
spokes

Spokes pattern of dummy points
update.ppm

Update a Fitted Point Process Model
DiggleGratton

Diggle-Gratton model
Iest

Estimate the I-function
plot.fasp

Plot a Function Array
StraussHard

The Strauss / Hard Core Point Process Model
envelope

Simulation envelopes of summary function
kaplan.meier

Kaplan-Meier Estimator using Histogram Data
markcorr

Mark Correlation Function
rNeymanScott

Simulate Neyman-Scott Process
unique.ppp

Extract Unique Points from a Spatial Point Pattern
vcov.ppm

Variance-Covariance Matrix for a Fitted Point Process Model
LennardJones

The Lennard-Jones Potential
applynbd

Apply Function to Every Neighbourhood in a Point Pattern
centroid.owin

Centroid of a window
rmhmodel

Define Point Process Model for Metropolis-Hastings Simulation.
Kest

K-function
is.ppm

Test Whether An Object Is A Fitted Point Process Model
humberside

Humberside Data on Childhood Leukaemia and Lymphoma
shift

Apply Vector Translation
japanesepines

Japanese Pines Point Pattern
crossdist.default

Pairwise distances between two different sets of points
multiplicity.ppp

Count Multiplicity of Duplicate Points
eroded.areas

Areas of Morphological Erosions
expand.owin

Expand Window By Factor
gridweights

Compute Quadrature Weights Based on Grid Counts
Kinhom

Inhomogeneous K-function
as.mask

Pixel Image Approximation of a Window
identify.ppp

Identify Points in a Point Pattern
nncorr

Nearest-Neighbour Correlation of Marked Point Pattern
nnwhich

Nearest neighbour
shift.im

Apply Vector Translation To Pixel Image
is.marked.ppp

Test Whether A Point Pattern is Marked
rThomas

Simulate Thomas Process
spatstat-internal

Internal spatstat functions
pairdist.psp

Pairwise distances between line segments
midpoints.psp

Midpoints of Line Segment Pattern
plot.plotppm

Plot a plotppm Object Created by plot.ppm
plot.quad

plot a Spatial Quadrature Scheme
pairdist.ppp

Pairwise distances
plot.owin

Plot a Spatial Window
rotate.owin

Rotate a Window
reach

Interaction Distance of a Point Process
summary.ppp

Summary of a Point Pattern Dataset
rstrat

Stratified random point pattern
summary.owin

Summary of a Spatial Window
summary.psp

Summary of a Line Segment Pattern Dataset
Kdot.inhom

Inhomogeneous Multitype K Dot Function
union.quad

Union of Data and Dummy Points
as.rectangle

Window Frame
complement.owin

Take Complement of a Window
finpines

Pine saplings in Finland.
diagnose.ppm

Diagnostic Plots for Fitted Point Process Model
fv.object

Data Frames of Function Values
quad.object

Class of Quadrature Schemes
Kest.fft

K-function using FFT
Kcross.inhom

Inhomogeneous Cross K Function
Fest

Estimate the empty space function F
Poisson

Poisson Point Process Model
Strauss

The Strauss Point Process Model
ppp.object

Class of Point Patterns
cut.im

Convert Pixel Image from Numeric to Factor
cut.ppp

Convert Point Pattern Marks from Numeric to Factor
quadrat.test

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

Rotate a Line Segment Pattern
Kcross

Multitype K Function (Cross-type)
affine.owin

Apply Affine Transformation To Window
allstats

Calculate four standard summary functions of a point pattern.
is.owin

Test Whether An Object Is A Window
eval.im

Evaluate Expression Involving Pixel Images
anova.ppm

ANOVA for Fitted Point Process Models
compatible.fv

Test Whether Two Function Objects Are Compatible
affine

Apply Affine Transformation
data.ppm

Extract Original Data from a Fitted Point Process Model
eval.fv

Evaluate Expression Involving Functions
predict.ppm

Prediction from a Fitted Point Process Model
subset.im

Extract Subset of Image
fasp.object

Function Arrays for Spatial Patterns
inside.owin

Test Whether Points Are Inside A Window
distmap.psp

Distance Map of Line Segment Pattern
as.matrix.im

Convert Pixel Image to Matrix
nndist

Nearest neighbour distances
print.owin

Print Brief Details of a Spatial Window
intersect.owin

Intersection or Union of Two Windows
nearest.raster.point

Find Pixel Nearest to a Given Point
summary.ppm

Summarizing a Fitted Point Process Model
pairdist

Pairwise distances
rMatClust

Simulate Matern Cluster Process
fitted.ppm

Fitted Conditional Intensity for Point Process Model
rpoint

Generate N Random Points
Kdot

Multitype K Function (i-to-any)
nztrees

New Zealand Trees Point Pattern
spatstat.options

Internal Options in Spatstat Package
psp.object

Class of Line Segment Patterns
ganglia

Beta Ganglion Cells in Cat Retina, Old Version
area.owin

Area of a Window
MultiStrauss

The Multitype Strauss Point Process Model
owin

Create a Window
ripras

Estimate window from points alone
spruces

Spruces Point Pattern
dummy.ppm

Extract Dummy Points Used to Fit a Point Process Model
endpoints.psp

Endpoints of Line Segment Pattern
subset.ppp

Extract or Replace Subset of Point Pattern
rpoispp

Generate Poisson Point Pattern
simdat

Simulated Point Pattern
rpoisline

Generate Poisson Random Line Process
redwood

California Redwoods Point Pattern (Ripley's Subset)
compatible.im

Test Whether Two Pixel Images Are Compatible
rmh

Simulate point patterns using the Metropolis-Hastings algorithm.
setcov

Set Covariance of a Window
cells

Biological Cells Point Pattern
quadratcount

Quadrat counting for a point pattern
is.subset.owin

Determine Whether One Window is Contained In Another
pcf

Pair Correlation Function
eem

Exponential Energy Marks
ppp

Create a Point Pattern
rotate

Rotate
rmh.ppm

Simulate from a Fitted Point Process Model
scanpp

Read Point Pattern From Data File
superimpose

Superimpose Several Point Patterns
split.ppp

Divide Point Pattern into Sub-patterns
print.ppm

Print a Fitted Point Process Model
angles.psp

Orientation Angles of Line Segments
as.owin

Convert Data To Class owin
print.psp

Print Brief Details of a Line Segment Pattern Dataset
Geyer

Geyer's Saturation Point Process Model
Gest

Nearest Neighbour Distance Function G
rshift.psp

Randomly Shift a Line Segment Pattern
mean.im

Mean Pixel Value in an Image
summary.quad

Summarizing a Quadrature Scheme
solutionset

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

Sufficient Statistic of Point Process Model