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spatstat (version 1.8-3)

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

18,534

Version

1.8-3

License

GPL version 2 or newer

Maintainer

Adrian Baddeley

Last Published

March 22nd, 2025

Functions in spatstat (1.8-3)

envelope

Simulation envelopes of summary function
Kinhom

Inhomogeneous K-function
default.dummy

Generate a Default Pattern of Dummy Points
Kest.fft

K-function using FFT
Poisson

Poisson Point Process Model
alltypes

Calculate Statistic for All Types in a Multitype Point Pattern
as.mask

Pixel Image Approximation of a Window
Kmulti

Marked K-Function
bramblecanes

Hutchings' Bramble Canes data
Jdot

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

Inhomogeneous Cross K Function
Saturated

Saturated Pairwise Interaction model
betacells

Beta Ganglion Cells in Cat Retina
complement.owin

Take Complement of a Window
cut.ppp

Convert Point Pattern Marks from Numeric to Factor
amacrine

Hughes' Amacrine Cell Data
Jcross

Multitype J Function (i-to-j)
Fest

Estimate the empty space function F
corners

Corners of a rectangle
eem

Exponential Energy Marks
angles.psp

Orientation Angles of Line Segments
Softcore

The Soft Core Point Process Model
compatible.im

Test Whether Two Pixel Images Are Compatible
distmap.ppp

Distance Map of Point Pattern
Kmeasure

Reduced Second Moment Measure
Jmulti

Marked J Function
compatible.fv

Test Whether Two Function Objects Are Compatible
MultiStrauss

The Multitype Strauss Point Process Model
affine.psp

Apply Affine Transformation To Line Segment Pattern
Gcross

Multitype Nearest Neighbour Distance Function (i-to-j)
is.marked.ppp

Test Whether A Point Pattern is Marked
PairPiece

The Piecewise Constant Pairwise Interaction Point Process Model
ants

Harkness-Isham ants' nests data
Ord

Generic Ord Interaction model
as.im

Convert to Pixel Image
DiggleGratton

Diggle-Gratton model
Iest

Estimate the I-function
chorley

Chorley-Ribble Cancer Data
centroid.owin

Centroid of a window
StraussHard

The Strauss / Hard Core Point Process Model
pcf.ppp

Pair Correlation Function of Point Pattern
Pairwise

Generic Pairwise Interaction model
is.marked

Test Whether Marks Are Present
is.ppp

Test Whether An Object Is A Point Pattern
Gdot

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

Nearest Neighbour Distance Function G
bounding.box

Bounding Box of a Window
gridcentres

Rectangular grid of points
dirichlet.weights

Compute Quadrature Weights Based on Dirichlet Tessellation
japanesepines

Japanese Pines Point Pattern
area.owin

Area of a Window
crossdist.psp

Pairwise distances between two different line segment patterns
lansing

Lansing Woods Point Pattern
OrdThresh

Ord's Interaction model
im.object

Class of Images
eval.im

Evaluate Expression Involving Pixel Images
eroded.areas

Areas of Morphological Erosions
crossdist.ppp

Pairwise distances between two different point patterns
bdist.points

Distance to Boundary of Window
density.psp

Kernel Smoothing of Line Segment Pattern
bdist.pixels

Distance to Boundary of Window
Strauss

The Strauss Point Process Model
erode.owin

Erode a Window
crossdist.default

Pairwise distances between two different sets of points
as.rectangle

Window Frame
concatxy

Concatenate x,y Coordinate Vectors
pcf.fasp

Pair Correlation Function obtained from array of K functions
intersect.owin

Intersection or Union of Two Windows
humberside

Humberside Data on Childhood Leukaemia and Lymphoma
Geyer

Geyer's Saturation Point Process Model
anova.ppm

ANOVA for Fitted Point Process Models
distmap.owin

Distance Map of Window
cells

Biological Cells Point Pattern
density.ppp

Kernel Smoothed Intensity of Point Pattern
is.ppm

Test Whether An Object Is A Fitted Point Process Model
fitted.ppm

Fitted Conditional Intensity for Point Process Model
Gmulti

Marked Nearest Neighbour Distance Function
as.psp

Convert Data To Class psp
lengths.psp

Lengths of Line Segments
affine

Apply Affine Transformation
Kdot

Multitype K Function (i-to-any)
pairdist.psp

Pairwise distances between line segments
affine.ppp

Apply Affine Transformation To Point Pattern
plot.ppm

plot a Fitted Point Process Model
diameter

Diameter of a Window Frame
allstats

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

Apply Affine Transformation To Window
as.ppp

Convert Data To Class ppp
data.ppm

Extract Original Data from a Fitted Point Process Model
lurking

Lurking variable plot
demopat

Artificial Data Point Pattern
rNeymanScott

Simulate Neyman-Scott Process
Jest

Estimate the J-function
rmhcontrol

Set Control Parameters for Metropolis-Hastings Algorithm.
midpoints.psp

Midpoints of Line Segment Pattern
pcf.fv

Pair Correlation Function obtained from K Function
inside.owin

Test Whether Points Are Inside A Window
predict.ppm

Prediction from a Fitted Point Process Model
rmpoint

Generate N Random Multitype Points
owin.object

Class owin
reduced.sample

Reduced Sample Estimator using Histogram Data
rmh.default

Simulate Point Process Models using the Metropolis-Hastings Algorithm.
Kdot.inhom

Inhomogeneous Multitype K Dot Function
LennardJones

The Lennard-Jones Potential
diagnose.ppm

Diagnostic Plots for Fitted Point Process Model
MultiStraussHard

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

Convert Data To Class owin
im

Create a Pixel Image Object
harmonic

Basis for Harmonic Functions
runifpoint

Generate N Uniform Random Points
letterR

Window in Shape of Letter R
residuals.ppm

Residuals for Fitted Point Process Model
is.marked.ppm

Test Whether A Point Process Model is Marked
dummy.ppm

Extract Dummy Points Used to Fit a Point Process Model
plot.quad

plot a Spatial Quadrature Scheme
scanpp

Read Point Pattern From Data File
ppm.object

Class of Fitted Point Process Models
is.subset.owin

Determine Whether One Window is Contained In Another
residualspaper

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

Test Whether An Object Is A Window
ord.family

Ord Interaction Process Family
ppp.object

Class of Point Patterns
rmh.ppm

Simulate from a Fitted Point Process Model
ppm

Fit Point Process Model to Data
plot.fv

Plot Function Valuesn
gridweights

Compute Quadrature Weights Based on Grid Counts
print.ppp

Print Brief Details of a Point Pattern Dataset
pairdist.default

Pairwise distances
quadratcount

Quadrat counting for a point pattern
psp.object

Class of Line Segment Patterns
rSSI

Simple Sequential Inhibition
ppp

Create a Point Pattern
hamster

Aherne's hamster tumour data
ganglia

Beta Ganglion Cells in Cat Retina, Old Version
plot.plotppm

Plot a plotppm Object Created by plot.ppm
rotate.owin

Rotate a Window
print.owin

Print Brief Details of a Spatial Window
rtoro

Random Toroidal Shift of Point Pattern
setcov

Set Covariance of a Window
pairdist

Pairwise distances
spokes

Spokes pattern of dummy points
kaplan.meier

Kaplan-Meier Estimator using Histogram Data
copper

Berman-Huntington points and lines data
spatstat

The Spatstat Package
pcf

Pair Correlation Function
spatstat.options

Internal Options in Spatstat Package
print.ppm

Print a Fitted Point Process Model
qqplot.ppm

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

Simulate Thomas Process
print.im

Print Brief Details of an Image
rmh

Simulate point patterns using the Metropolis-Hastings algorithm.
quadscheme

Generate a Quadrature Scheme from a Point Pattern
quad.object

Class of Quadrature Schemes
summary.im

Summarizing a Pixel Image
plot.im

Plot a Pixel Image
shift.ppp

Apply Vector Translation To Point Pattern
raster.x

Cartesian Coordinates for a Pixel Raster
spruces

Spruces Point Pattern
markcorr

Mark Correlation Function
simdat

Simulated Point Pattern
crossdist

Pairwise distances
split.ppp

Divide Point Pattern into Sub-patterns
nndist

Nearest neighbour distances
redwoodfull

California Redwoods Point Pattern (Entire Dataset)
setmarks

Set or Reset the Marks in a Point Pattern
longleaf

Longleaf Pines Point Pattern
expand.owin

Expand Window By Factor
nearest.raster.point

Find Pixel Nearest to a Given Point
rMaternII

Simulate Matern Model II
rlabel

Random Re-Labelling of Point Pattern
plot.splitppp

Plot a List of Point Patterns
print.psp

Print Brief Details of a Line Segment Pattern Dataset
owin

Create a Window
pairdist.ppp

Pairwise distances
shift.psp

Apply Vector Translation To Line Segment Pattern
rmpoispp

Generate Multitype Poisson Point Pattern
plot.fasp

Plot a Function Array
pairwise.family

Pairwise Interaction Process Family
endpoints.psp

Endpoints of Line Segment Pattern
rotate.ppp

Rotate a Point Pattern
print.quad

Print a Quadrature Scheme
distmap.psp

Distance Map of Line Segment Pattern
coef.ppm

Coefficients of Fitted Point Process Model
fv.object

Data Frames of Function Values
eval.fv

Evaluate Expression Involving Functions
rmhstart

Determine Initial State for Metropolis-Hastings Simulation.
rpoispp

Generate Poisson Point Pattern
subset.ppp

Extract or Replace Subset of Point Pattern
rpoint

Generate N Random Points
is.im

Test Whether An Object Is A Pixel Image
plot.ppp

plot a Spatial Point Pattern
subset.psp

Extract Subset of Line Segment Pattern
Kcross

Multitype K Function (Cross-type)
rMaternI

Simulate Matern Model I
rmhmodel

Define Point Process Model for Metropolis-Hastings Simulation.
pairsat.family

Saturated Pairwise Interaction Point Process Family
identify.ppp

Identify Points in a Point Pattern
rotate.psp

Rotate a Line Segment Pattern
spatstat-internal

Internal spatstat functions
redwood

California Redwoods Point Pattern (Ripley's Subset)
rMatClust

Simulate Matern Cluster Process
suffstat

Sufficient Statistic of Point Process Model
Kest

K-function
km.rs

Kaplan-Meier and Reduced Sample Estimator using Histograms
rotate

Rotate
applynbd

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

Apply Vector Translation To Window
shift

Apply Vector Translation
summary.ppm

Summarizing a Fitted Point Process Model
plot.psp

plot a Spatial Line Segment Pattern
square

Square Window
spatstat-deprecated

Deprecated spatstat functions
markstat

Summarise Marks in Every Neighbourhood in a Point Pattern
nztrees

New Zealand Trees Point Pattern
quad.ppm

Extract Quadrature Scheme Used to Fit a Point Process Model
psp

Create a Line Segment Pattern
shift.im

Apply Vector Translation To Pixel Image
update.ppm

Update a Fitted Point Process Model
reach

Interaction Distance of a Point Process
swedishpines

Swedish Pines Point Pattern
distmap

Distance Map
ripras

Estimate window from points alone
summary.ppp

Summary of a Point Pattern Dataset
finpines

Pine saplings in Finland.
summary.quad

Summarizing a Quadrature Scheme
fasp.object

Function Arrays for Spatial Patterns
plot.owin

Plot a Spatial Window
union.quad

Union of Data and Dummy Points
subset.fasp

Extract Subset of Function Array
subset.fv

Extract Subset of Function Values
subset.im

Extract Subset of Image
summary.psp

Summary of a Line Segment Pattern Dataset
superimpose

Superimpose Several Point Patterns
unmark

Remove Marks from a Marked Point Pattern
rescue.rectangle

Convert Window Back To Rectangle
stratrand

Stratified random point pattern
summary.owin

Summary of a Spatial Window