Learn R Programming

⚠️There's a newer version (3.3-1) of this package.Take me there.

spatstat (version 1.14-1)

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. Contains 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, and pixel images. Point process models can be fitted to point pattern data. Cluster type models are fitted by the method of minimum contrast. Very general Gibbs point process models can be fitted to point pattern data using a function ppm similar to lm or glm. Models may include dependence on covariates, interpoint interaction 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).

Copy Link

Version

Install

install.packages('spatstat')

Monthly Downloads

16,590

Version

1.14-1

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

March 22nd, 2025

Functions in spatstat (1.14-1)

Marked Nearest Neighbour Distance Function

Multitype J Function (i-to-any)

The Lennard-Jones Potential

The Soft Core Point Process Model

Poisson Point Process Model

ANOVA for Fitted Point Process Models

Calculate four standard summary functions of a point pattern.

Multitype J Function (i-to-j)

as.data.frame.ppp

Coerce Point Pattern to a Data Frame

The Spatstat Package

Inhomogeneous Multitype K Dot Function

Determine Duplicated Points in a Spatial Point Pattern

Geyer's Saturation Point Process Model

Diameter of a Window

Multitype K Function (Cross-type)

The Area Interaction Point Process Model

bounding.box.xy

Convex Hull of Points

Beadlet Anemones Data

Pairwise distances between two different point patterns

complement.owin

Take Complement of a Window

Saturated Pairwise Interaction model

Apply Affine Transformation To Window

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

Apply Function to Every Neighbourhood in a Point Pattern

Test whether Object is Multitype

Inhomogeneous K-function

Interactively Add Points

Pixel Image Approximation of a Window

Extract Dummy Points Used to Fit a Point Process Model

Diggle-Gratton model

Delaunay Triangulation of Point Pattern

density.splitppp

Kernel Smoothed Intensity of Split Point Pattern

K-function using FFT

Artificial Data Point Pattern

Hughes' Amacrine Cell Data

Hybrid Geyer Point Process Model

MultiStraussHard

The Multitype/Hard Core Strauss Point Process Model

Concatenate x,y Coordinate Vectors

Apply Affine Transformation

Marked J Function

Distance Map of Point Pattern

Distance to Boundary of Window

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

Kernel Smoothed Intensity of Point Pattern

Reduced Second Moment Measure

Combine Two Line Segment Patterns

Distance to Boundary of Window

Evaluate an Expression in Each Row of a Hyperframe

Ord's Interaction model

Multitype L-function (cross-type)

Orientation Angles of Line Segments

Harkness-Isham ants' nests data

inforder.family

Infinite Order Interaction Family

Coefficients of Fitted Point Process Model

Evaluate Expression Involving Function Arrays

Estimate the J-function

Dirichlet Tessellation of Point Pattern

Tabulate Marks in Neighbourhood of Every Point in a Point Pattern

Apply Affine Transformation To Line Segment Pattern

Circular Window

Piecewise Constant Saturated Pairwise Interaction Point Process Model

Test Whether An Object Is A Point Pattern

The Strauss / Hard Core Point Process Model

Bounding Box of a Window or Point Pattern

Fitted Conditional Intensity for Point Process Model

Apply Affine Transformation To Point Pattern

Estimate the I-function

Interactively Define a Polygon

Convert to Pixel Image

Safely Convert Point Pattern Window to Binary Mask

Convert Data To Class owin

Centroid of a window

Identify Points in a Point Pattern

Test Whether Two Pixel Images Are Compatible

Kolmogorov-Smirnov Test for Point Process Model

Extract Original Data from a Fitted Point Process Model

Fit a Log-Gaussian Cox Point Process by Minimum Contrast

Test Whether An Object Is A Fitted Point Process Model

Convert Pixel Image to Matrix

spatstat-internal

Internal spatstat functions

Clark and Evans Aggregation Index

crossdist.default

Pairwise distances between two different sets of points

The Multitype Strauss Point Process Model

Difference of Disc Areas

Chorley-Ribble Cancer Data

Data Frames of Function Values

Evaluate Expression Involving Pixel Images

Expand Window By Factor

Weighted Empirical Cumulative Distribution Function

Plot a tessellation

Inhomogeneous Cross K Function

compatible.fasp

Test Whether Two Function Arrays Are Compatible

Log Likelihood for Poisson Point Process Model

Pairwise distances between two different line segment patterns

Simulate Neyman-Scott Process

Mark Correlation Function

Areas of Morphological Erosions

Pairwise distances

Pairwise distances between line segments

Nearest neighbour distances

Berman-Huntington points and lines data

Determine Whether One Window is Contained In Another

Convert dataset to another unit of length

Nearest-Neighbour Correlation of Marked Point Pattern

Interaction Distance of a Point Process

Rotate a Window

Endpoints of Line Segment Pattern

Beta Ganglion Cells in Cat Retina

Fit cluster point process model

Distance Map of Line Segment Pattern

Compute Quadrature Weights Based on Grid Counts

Quadrat counting for a point pattern

Rotate a Point Pattern

Multitype L-function (i-to-any)

Humberside Data on Childhood Leukaemia and Lymphoma

Create a Line Segment Pattern

model.matrix.ppm

Extract Design Matrix from Point Process Model

Sample Quantiles of Pixel Image

Longleaf Pines Point Pattern

Pairwise distances

Class of Images

Method of Minimum Contrast

Generate a Quadrature Scheme from a Point Pattern

Test Whether A Point Process Model is Marked

Saturated Pairwise Interaction Point Process Family

Distance Map of Window

Classify Points in a Point Pattern

rescue.rectangle

Convert Window Back To Rectangle

Diagnostic Plots for Fitted Point Process Model

Function Arrays for Spatial Patterns

Lengths of Line Segments

Update a Fitted Point Process Model

Biological Cells Point Pattern

Kaplan-Meier and Reduced Sample Estimator using Histograms

Plot a plotppm Object Created by plot.ppm

nearest.raster.point

Find Pixel Nearest to a Given Point

Simulate from a Fitted Point Process Model

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

Crossing Points of Two Line Segment Patterns

Prediction from a Fitted Point Process Model

Convert Pixel Image from Numeric to Factor

Class of Point Patterns

Rectangular grid of points

Point Patterns of New Brunswick Forest Fires

Generate N Uniform Random Points

Distance for a Point Pattern Matching

Pair Correlation Function

The Piecewise Constant Pairwise Interaction Point Process Model

Simulation envelopes of summary function

Print Brief Details of a Spatial Window

Simulate systematic random point pattern

Simulate Stratified Random Point Pattern

Print a Fitted Point Process Model

spatstat.options

Internal Options in Spatstat Package

pppmatching.object

Class of Point Matchings

Plot a Function Array

Plot a List of Point Patterns

Test Whether Marks Are Present

Kernel Smoothing of Line Segment Pattern

Fit the Matern Cluster Point Process by Minimum Contrast

plot.hyperframe

Plot Entries in a Hyperframe

Apply Vector Translation

Convert Data To Class ppp

Japanese Pines Point Pattern

California Redwoods Point Pattern (Entire Dataset)

Nearest Neighbour in Another Point Pattern

Midpoints of Line Segment Pattern

Create a Pixel Image Object

Residuals for Fitted Point Process Model

adaptive.density

Intensity Estimate of Point Pattern Using Tessellation

Convert Line Segment Pattern to Another Unit of Length

Ponderosa Pine Tree Point Pattern

Pine saplings in Finland.

Interpret Fitted Model for Metropolis-Hastings Simulation.

Plot a List of Things

Extract Subset of Line Segment Pattern

Print a Quadrature Scheme

Simulate Matern Cluster Process

Estimate the empty space function F

rshift.splitppp

Randomly Shift a List of Point Patterns

multiplicity.ppp

Count Multiplicity of Duplicate Points

Generic Ord Interaction model

as.data.frame.psp

Coerce Line Segment Pattern to a Data Frame

Create a Window

Cartesian Coordinates for a Pixel Raster

The Strauss Point Process Model

Convert Data To Class psp

pairwise.family

Pairwise Interaction Process Family

Reduced Sample Estimator using Histogram Data

Profile Maximum Pseudolikelihood

subset.splitppp

Extract or Replace Sub-Patterns

Hutchings' Bramble Canes data

Calculate Summary Statistic for All Types in a Multitype Point Pattern

Divide Point Pattern into Sub-patterns

Print Progress Reports

Test Whether Points Are Inside A Window

spatstat-deprecated

Deprecated spatstat functions

Rotate a Line Segment Pattern

Simulate Matern Model I

Generic Pairwise Interaction model

Apply Gaussian Blur to a Pixel Image

Test Whether An Object Is A Window

Kaplan-Meier Estimator using Histogram Data

Apply Vector Translation To Point Pattern

Spokes pattern of dummy points

Multitype K Function (i-to-any)

Extract Subset of Function Array

Define Point Process Model for Metropolis-Hastings Simulation.

Reset Values in Subset of Image

Update a Fitted Cluster Point Process Model

Interpolate a Pixel Image

Data and Code From JRSS Discussion Paper on Residuals

Compute Integral of Function Against Cumulative Distribution

Generate Multitype Poisson Point Pattern

is.multitype.ppp

Test Whether A Point Pattern is Multitype

Contour plot of pixel image

dirichlet.weights

Compute Quadrature Weights Based on Dirichlet Tessellation

Nearest Neighbour Distance Function G

Convert Window to Another Unit of Length

Histogram of Pixel Values in an Image

Convex Hull of Points

Plot a fitted cluster point process

Lurking variable plot

Summarizing a Quadrature Scheme

Set Covariance of a Window

Plot a Spatial Window

Neighbourhood density function

Test Whether Two Function Objects Are Compatible

Nearest neighbour

Basis for Harmonic Functions

selfcrossing.psp

Crossing Points in a Line Segment Pattern

Apply Vector Translation To Pixel Image

Apply Function to Image Broken Down by Factor

Extract Quadrature Scheme Used to Fit a Point Process Model

Lansing Woods Point Pattern

Generate N Uniform Random Points in a Disc

Pair Correlation Function obtained from K Function

Fit Point Process Model to Data

Estimate window from points alone

Print Brief Details of a Point Pattern Dataset

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

Name for Unit of Length

Superimpose Several Point Patterns

Extract Subset of Function Values

Apply Vector Translation To Window

Convert Polygonal Region into Different Format

Class of Quadrature Schemes

Dilate a Window

Summarizing a Pixel Image

Extract or Replace Subset of Tessellation

Morishita Index Plot

Variance-Covariance Matrix for a Fitted Point Process Model

Determine Initial State for Metropolis-Hastings Simulation.

Summarise Marks in Every Neighbourhood in a Point Pattern

Area of a Window

Perfect Simulation of the Strauss Process

Beta Ganglion Cells in Cat Retina, Old Version

Marked K-Function

Random Re-Labelling of Point Pattern

Tropical rain forest trees

Window in Shape of Letter R

Distance Between Two Point Patterns

Summary of a Point Pattern Dataset

Hyper Data Frame

Print Brief Details of a Line Segment Pattern Dataset

pairdist.default

Pairwise distances

Plot Function Valuesn

Create a Point Pattern

Summary of a Line Segment Pattern Dataset

Test Whether An Object Is A Pixel Image

Evaluate Expression Involving Functions

Generate a Default Pattern of Dummy Points

Swedish Pines Point Pattern

Generate Poisson Point Pattern

Subset of Quadrature Scheme

Define Point Process Model for Metropolis-Hastings Simulation.

Simulated Point Pattern

Simulate Baddeley-Silverman Cell Process

Simulate Simple Sequential Inhibition

Corners of a rectangle

Morphological Opening of a Window

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

Create a Point Matching

Simulate Matern Model II

Class of Fitted Point Process Models

Pair Correlation Function of Point Pattern

Extract or Replace Subset of a List of Things

Aherne's hamster tumour data

Compute Images of Constructed Covariates

Multitype pair correlation function

Find Largest Circle Inside Window

Intersection or Union of Two Windows

Exponential Energy Marks

Test Whether A Point Pattern is Marked

Spatial smoothing of observations at irregular points

Extract Subset of Image

Extract Unique Points from a Spatial Point Pattern

Simulate Thomas Process

Nearest neighbour distances between line segments

Summary of a List of Things

plot a Spatial Point Pattern

Set or Reset the Marks in a Point Pattern

Level Set of a Pixel Image

quadratresample

Resample a Point Pattern by Resampling Quadrats

Class of Line Segment Patterns

Sufficient Statistic of Point Process Model

project2segment

Move Point To Nearest Line

California Redwoods Point Pattern (Ripley's Subset)

Apply a Function to a Point Pattern Broken Down by Factor

Simulate Gauss-Poisson Process

Q-Q Plot of Residuals from Fitted Point Process Model

Quadrature Scheme Based on Pixel Grid

is.multitype.ppm

Test Whether A Point Process Model is Multitype

Random Perturbation of a Point Pattern

Generate Poisson Random Line Process

plot a Spatial Quadrature Scheme

Generate grid of parallel lines with random displacement

rmhmodel.default

Build Point Process Model for Metropolis-Hastings Simulation.

Mean Pixel Value in an Image

New Zealand Trees Point Pattern

Randomly Shift a Line Segment Pattern

Union of Data and Dummy Points

Prediction from a Fitted Cluster Point Process Model

Intersection of Two Tessellations

Apply Vector Translation To Line Segment Pattern

Generate N Random Points

Summary of a Spatial Window

Extract the Interaction from a Fitted Point Process Model

Plot a Pixel Image

Evaluate an Expression in a Function Table

Create a Tessellation

quadrat.test.splitppp

Chi-Squared Test of CSR for Split Point Pattern

Simulate Point Process Models using the Metropolis-Hastings Algorithm.

Perspective Plot of Pixel Image

plot a Spatial Line Segment Pattern

Set Control Parameters for Metropolis-Hastings Algorithm.

Place Points Evenly Along Specified Lines

plot a Fitted Point Process Model

Summarizing a Fitted Point Process Model

Convert Point Pattern to Another Unit of Length

Murchison gold deposits

Ord Interaction Process Family

Generate N Random Multitype Points

Pair Correlation Function obtained from array of K functions

Cut margins from rectangle

Print Brief Details of an Image

Urkiola Woods Point Pattern

Divide Region into Quadrats

Convert Pixel Image to Another Unit of Length

Simulate a fitted cluster point process model.

Convert Data To Tessellation

Random Thinning

Pairwise distances

Read Point Pattern From Data File

Simulate point patterns using the Metropolis-Hastings algorithm.

Randomly Shift a Point Pattern

Extract or Replace Subset of Point Pattern

Spruces Point Pattern

Generate Poisson Point Pattern on Line Segments

Extract List of Tiles in a Tessellation

Fry Plot of Point Pattern

summary.splitppp

Summary of a Split Point Pattern

Vertices of a Window

Find Line Segment Nearest to Each Point

runifpointOnLines

Generate N Uniform Random Points On Line Segments

Fit the Thomas Point Process by Minimum Contrast

Divide Image Into Sub-images

Superimpose Several Line Segment Patterns

Remove Marks from a Marked Point Pattern

Morphological Closing of a Window

Convert Point Pattern to Pixel Image