spatstat v1.34-1

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by Adrian Baddeley

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

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 quadrat counts, K-functions and their simulation envelopes, 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, and kernel estimates of covariate effects. Formal hypothesis tests of random pattern (chi-squared, Kolmogorov-Smirnov, Dao-Genton) are also supported. Point process models can be fitted to point pattern data using the functions ppm, kppm, slrm similar to glm. Models may involve dependence on covariates, interpoint interaction, cluster formation and dependence on marks. Models are fitted by maximum likelihood, logistic regression, minimum contrast, and various composite likelihood methods. Fitted point process models can be simulated, automatically. Formal hypothesis tests of a fitted model are supported. Tools for validating the fitted model include simulation envelopes, residuals, residual plots and Q-Q plots, and leverage and influence diagnostics.

Functions in spatstat

Name Description
Extract.tess Extract or Replace Subset of Tessellation
Hest Spherical Contact Distribution Function
Extract.splitppp Extract or Replace Sub-Patterns
Extract.fasp Extract Subset of Function Array
Gfox Foxall's Distance Functions
BadGey Hybrid Geyer Point Process Model
Kcross.inhom Inhomogeneous Cross K Function
Extract.fv Extract Subset of Function Values
Extract.im Extract Subset of Image
Extract.ppp Extract or Replace Subset of Point Pattern
Concom The Connected Component Process Model
Fest Estimate the empty space function F
Gcom Model Compensator of Nearest Neighbour Function
G3est Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern
Gmulti Marked Nearest Neighbour Distance Function
Gres Residual G Function
Extract.ppx Extract Subset of Multidimensional Point Pattern
DiggleGatesStibbard Diggle-Gates-Stibbard Point Process Model
Lcross.inhom Inhomogeneous Cross Type L Function
DiggleGratton Diggle-Gratton model
Ldot Multitype L-function (i-to-any)
PairPiece The Piecewise Constant Pairwise Interaction Point Process Model
Kcom Model Compensator of K Function
Pairwise Generic Pairwise Interaction model
StraussHard The Strauss / Hard Core Point Process Model
affine.im Apply Affine Transformation To Pixel Image
Fiksel The Fiksel Interaction
Emark Diagnostics for random marking
Gest Nearest Neighbour Distance Function G
LambertW Lambert's W Function
Lcross Multitype L-function (cross-type)
Ginhom Inhomogeneous Nearest Neighbour Function
allstats Calculate four standard summary functions of a point pattern.
angles.psp Orientation Angles of Line Segments
Kdot.inhom Inhomogeneous Multitype K Dot Function
Kcross Multitype K Function (Cross-type)
Kest.fft K-function using FFT
as.lpp Convert Data to a Point Pattern on a Linear Network
Iest Estimate the I-function
Kdot Multitype K Function (i-to-any)
Jinhom Inhomogeneous J-function
F3est Empty Space Function of a Three-Dimensional Point Pattern
bdist.pixels Distance to Boundary of Window
Kest K-function
crossdist.lpp Pairwise distances between two point patterns on a linear network
affine.owin Apply Affine Transformation To Window
as.box3 Convert Data to Three-Dimensional Box
Kres Residual K Function
Geyer Geyer's Saturation Point Process Model
Extract.layered Extract Subset of a Layered Object
Extract.quad Subset of Quadrature Scheme
beachcolours Create Colour Scheme for a Range of Numbers
areaGain Difference of Disc Areas
as.data.frame.psp Coerce Line Segment Pattern to a Data Frame
Kmulti Marked K-Function
crossdist.psp Pairwise distances between two different line segment patterns
Kscaled Locally Scaled K-function
Hybrid Hybrid Interaction Point Process Model
Tstat Third order summary statistic
anova.slrm Analysis of Deviance for Spatial Logistic Regression Models
Lest L-function
as.matrix.im Convert Pixel Image to Matrix or Array
Jmulti Marked J Function
Jdot Multitype J Function (i-to-any)
bw.smoothppp Cross Validated Bandwidth Selection for Spatial Smoothing
Kmodel K function of a model
Gcross Multitype Nearest Neighbour Distance Function (i-to-j)
as.owin Convert Data To Class owin
amacrine Hughes' Amacrine Cell Data
cells Biological Cells Point Pattern
bind.fv Combine Function Value Tables
Kinhom Inhomogeneous K-function
Strauss The Strauss Point Process Model
distfun Distance Map as a Function
ants Harkness-Isham ants' nests data
coef.slrm Coefficients of Fitted Spatial Logistic Regression Model
clarkevans Clark and Evans Aggregation Index
area.owin Area of a Window
distcdf Distribution Function of Interpoint Distance
as.mask Pixel Image Approximation of a Window
Saturated Saturated Pairwise Interaction model
as.mask.psp Convert Line Segment Pattern to Binary Pixel Mask
Poisson Poisson Point Process Model
as.function.fv Convert Function Value Table to Function
distmap.owin Distance Map of Window
Ldot.inhom Inhomogeneous Multitype L Dot Function
MultiStraussHard The Multitype/Hard Core Strauss Point Process Model
gordon People in Gordon Square
affine.lpp Apply Geometrical Transformations to Point Pattern on a Linear Network
Hardcore The Hard Core Point Process Model
as.polygonal Convert a Window to a Polygonal Window
as.hyperframe.ppx Extract coordinates and marks of multidimensional point pattern
Extract.linnet Extract Subset of Linear Network
K3est K-function of a Three-Dimensional Point Pattern
Replace.im Reset Values in Subset of Image
as.fv Convert Data To Class fv
box3 Three-Dimensional Box
contour.listof Plot a List of Things
clickpoly Interactively Define a Polygon
bei Tropical rain forest trees
bw.stoyan Stoyan's Rule of Thumb for Bandwidth Selection
as.ppm Extract Fitted Point Process Model
Ord Generic Ord Interaction model
crossdist.ppp Pairwise distances between two different point patterns
compatible Test Whether Objects Are Compatible
bw.diggle Cross Validated Bandwidth Selection for Kernel Density
compatible.fv Test Whether Function Objects Are Compatible
OrdThresh Ord's Interaction model
chop.tess Subdivide a Window or Tessellation using a Set of Lines
as.data.frame.ppp Coerce Point Pattern to a Data Frame
applynbd Apply Function to Every Neighbourhood in a Point Pattern
density.psp Kernel Smoothing of Line Segment Pattern
bermantest Berman's Tests for Point Process Model
as.linim Convert to Pixel Image on Linear Network
dclf.test Diggle-Cressie-Loosmore-Ford and Maximum Absolute Deviation Tests
blur Apply Gaussian Blur to a Pixel Image
diameter.box3 Geometrical Calculations for Three-Dimensional Box
betacells Beta Ganglion Cells in Cat Retina
bramblecanes Hutchings' Bramble Canes data
dummy.ppm Extract Dummy Points Used to Fit a Point Process Model
addvar Added Variable Plot for Point Process Model
boxx Multi-Dimensional Box
dilation Morphological Dilation
as.psp Convert Data To Class psp
crossdist.ppx Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
affine.psp Apply Affine Transformation To Line Segment Pattern
clip.infline Intersect Infinite Straight Lines with a Window
inside.owin Test Whether Points Are Inside A Window
MultiStrauss The Multitype Strauss Point Process Model
connected.ppp Connected components of a point pattern
diameter.boxx Geometrical Calculations for Multi-Dimensional Box
hyperframe Hyper Data Frame
clmfires Castilla-La Mancha Forest Fires
convexhull Convex Hull
delaunay Delaunay Triangulation of Point Pattern
compatible.fasp Test Whether Function Arrays Are Compatible
edges2triangles List Triangles in a Graph
is.multitype.ppm Test Whether A Point Process Model is Multitype
clickjoin Interactively join vertices on a plot
dirichlet.weights Compute Quadrature Weights Based on Dirichlet Tessellation
circumradius Circumradius and Diameter of a Linear Network
as.rectangle Window Frame
border Border Region of a Window
by.ppp Apply a Function to a Point Pattern Broken Down by Factor
colourtools Convert and Compare Colours in Different Formats
cauchy.estK Fit the Neyman-Scott cluster process with Cauchy kernel
distfun.lpp Distance Map on Linear Network
linearpcfdot Multitype Pair Correlation Function (Dot-type) for Linear Point Pattern
clickppp Interactively Add Points
eval.fasp Evaluate Expression Involving Function Arrays
deriv.fv Calculate Derivative of Function Values
bw.frac Bandwidth Selection Based on Window Geometry
is.owin Test Whether An Object Is A Window
Triplets The Triplet Point Process Model
bw.scott Scott's Rule for Bandwidth Selection for Kernel Density
layerplotargs Extract or Replace the Plot Arguments of a Layered Object
influence.ppm Influence Measure for Spatial Point Process Model
envelope.lpp Envelope for Point Patterns on Linear Network
affine.linnet Apply Geometrical Transformations to a Linear Network
beginner Print Introduction For Beginners
edges2vees List Dihedral Triples in a Graph
marktable Tabulate Marks in Neighbourhood of Every Point in a Point Pattern
distmap.ppp Distance Map of Point Pattern
compatible.im Test Whether Pixel Images Are Compatible
integral.im Integral of a Pixel Image
anova.ppm ANOVA for Fitted Point Process Models
alltypes Calculate Summary Statistic for All Types in a Multitype Point Pattern
centroid.owin Centroid of a window
crossdist.default Pairwise distances between two different sets of points
diameter.owin Diameter of a Window
diagnose.ppm Diagnostic Plots for Fitted Point Process Model
cauchy.estpcf Fit the Neyman-Scott cluster process with Cauchy kernel
infline Infinite Straight Lines
intensity.lpp Empirical Intensity of Point Pattern on Linear Network
is.marked.ppp Test Whether A Point Pattern is Marked
compareFit Residual Diagnostics for Multiple Fitted Models
leverage.ppm Leverage Measure for Spatial Point Process Model
adaptive.density Intensity Estimate of Point Pattern Using Tessellation
dilated.areas Areas of Morphological Dilations
as.ppp Convert Data To Class ppp
as.data.frame.im Convert Pixel Image to Data Frame
dirichlet Dirichlet Tessellation of Point Pattern
bdist.points Distance to Boundary of Window
crossdist Pairwise distances
envelope.pp3 Simulation Envelopes of Summary Function for 3D Point Pattern
erosion Morphological Erosion
mincontrast Method of Minimum Contrast
cbind.hyperframe Combine Hyperframes by Rows or by Columns
ippm Optimise Irregular Trend Parameters in Point Process Model
complement.owin Take Complement of a Window
nbfires Point Patterns of New Brunswick Forest Fires
envelope Simulation Envelopes of Summary Function
is.lpp Test Whether An Object Is A Point Pattern on a Linear Network
connected Connected components
coords Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern
edge.Ripley Ripley's Isotropic Edge Correction
cut.im Convert Pixel Image from Numeric to Factor
distmap Distance Map
japanesepines Japanese Pines Point Pattern
linim Create Pixel Image on Linear Network
is.marked Test Whether Marks Are Present
concatxy Concatenate x,y Coordinate Vectors
commonGrid Determine A Common Spatial Domain And Pixel Resolution
pairdist.psp Pairwise distances between line segments
linearKinhom Inhomogeneous Linear K Function
localK Neighbourhood density function
cut.ppp Classify Points in a Point Pattern
areaLoss Difference of Disc Areas
is.rectangle Determine Type of Window
disc Circular Window
diameter Diameter of an Object
interp.im Interpolate a Pixel Image
linnet Create a Linear Network
linearKcross Multitype K Function (Cross-type) for Linear Point Pattern
kaplan.meier Kaplan-Meier Estimator using Histogram Data
is.multitype Test whether Object is Multitype
gorillas Gorilla Nesting Sites
distmap.psp Distance Map of Line Segment Pattern
linearpcfcross Multitype Pair Correlation Function (Cross-type) for Linear Point Pattern
print.owin Print Brief Details of a Spatial Window
linearpcfcross.inhom Inhomogeneous Multitype Pair Correlation Function (Cross-type) for Linear Point Pattern
pairdist.default Pairwise distances
ewcdf Weighted Empirical Cumulative Distribution Function
edge.Trans Translation Edge Correction
demopat Artificial Data Point Pattern
as.im Convert to Pixel Image
hamster Aherne's hamster tumour data
eval.linim Evaluate Expression Involving Pixel Images on Linear Network
print.ppm Print a Fitted Point Process Model
is.convex Test Whether a Window is Convex
pcf.ppp Pair Correlation Function of Point Pattern
nnmap K-th Nearest Point Map
pcfcross.inhom Inhomogeneous Multitype Pair Correlation Function (Cross-Type)
pixellate Convert Spatial Object to Pixel Image
eval.fv Evaluate Expression Involving Functions
effectfun Compute Fitted Effect of a Spatial Covariate in a Point Process Model
default.expand Default Expansion Rule for Simulation of Model
longleaf Longleaf Pines Point Pattern
fitted.slrm Fitted Probabilities for Spatial Logistic Regression
marks Marks of a Point Pattern
pixellate.psp Convert Line Segment Pattern to Pixel Image
endpoints.psp Endpoints of Line Segment Pattern
fasp.object Function Arrays for Spatial Patterns
eroded.areas Areas of Morphological Erosions
lineardisc Compute Disc of Given Radius in Linear Network
deltametric Delta Metric
gridcentres Rectangular grid of points
msr Signed or Vector-Valued Measure
intensity Intensity of a Dataset or a Model
hybrid.family Hybrid Interaction Family
nearestsegment Find Line Segment Nearest to Each Point
is.multitype.ppp Test Whether A Point Pattern is Multitype
as.hyperframe Convert Data to Hyperframe
delaunay.distance Distance on Delaunay Triangulation
lengths.psp Lengths of Line Segments
intersect.tess Intersection of Two Tessellations
convolve.im Convolution of Pixel Images
nnfun Nearest Neighbour Map as a Function
is.stationary Recognise Stationary and Poisson Point Process Models
istat Point and Click Interface for Exploratory Analysis of Point Pattern
plot.pp3 Plot a three-dimensional point pattern
plot.kppm Plot a fitted cluster point process
letterR Window in Shape of Letter R
pixellate.ppp Convert Point Pattern to Pixel Image
npfun Dummy Function Returns Number of Points
multiplicity.ppp Count Multiplicity of Duplicate Points
density.splitppp Kernel Smoothed Intensity of Split Point Pattern
interp.colourmap Interpolate smoothly between specified colours
is.subset.owin Determine Whether One Window is Contained In Another
intensity.ppp Empirical Intensity of Point Pattern
plot.ppp plot a Spatial Point Pattern
bounding.box Bounding Box of a Window or Point Pattern
finpines Pine saplings in Finland.
is.im Test Whether An Object Is A Pixel Image
data.ppm Extract Original Data from a Fitted Point Process Model
idw Inverse-distance weighted smoothing of observations at irregular points
discpartarea Area of Part of Disc
linearmarkconnect Mark Connection Function for Multitype Point Pattern on Linear Network
flu Influenza Virus Proteins
exactMPLEstrauss Exact Maximum Pseudolikelihood Estimate for Stationary Strauss Process
lurking Lurking variable plot
methods.linfun Methods for Functions on Linear Network
matchingdist Distance for a Point Pattern Matching
model.depends Identify Covariates Involved in each Model Term
fitted.ppm Fitted Conditional Intensity for Point Process Model
fv Create a Function Value Table
nnmark Mark of Nearest Neighbour
ponderosa Ponderosa Pine Tree Point Pattern
pcfdot Multitype pair correlation function (i-to-any)
pppdist Distance Between Two Point Patterns
print.im Print Brief Details of an Image
humberside Humberside Data on Childhood Leukaemia and Lymphoma
linearKdot.inhom Inhomogeneous multitype K Function (Dot-type) for Linear Point Pattern
methods.rho2hat Methods for Intensity Functions of Two Spatial Covariates
redwoodfull California Redwoods Point Pattern (Entire Dataset)
markstat Summarise Marks in Every Neighbourhood in a Point Pattern
psp.object Class of Line Segment Patterns
nndist Nearest neighbour distances
im.object Class of Images
ord.family Ord Interaction Process Family
plot.slrm Plot a Fitted Spatial Logistic Regression
inforder.family Infinite Order Interaction Family
plot.leverage.ppm Plot Leverage Function
pcf.fv Pair Correlation Function obtained from K Function
quad.ppm Extract Quadrature Scheme Used to Fit a Point Process Model
pixellate.owin Convert Window to Pixel Image
linearK Linear K Function
pcfdot.inhom Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type)
rmhstart Determine Initial State for Metropolis-Hastings Simulation.
kstest.ppm Kolmogorov-Smirnov Test for Point Pattern or Point Process Model
identify.psp Identify Segments in a Line Segment Pattern
ppp.object Class of Point Patterns
nncross.lpp Nearest Neighbours on a Linear Network
rounding Detect Numerical Rounding
persp.im Perspective Plot of Pixel Image
plot.owin Plot a Spatial Window
linearmarkequal Mark Connection Function for Multitype Point Pattern on Linear Network
predict.ppm Prediction from a Fitted Point Process Model
model.frame.ppm Extract the Variables in a Point Process Model
methods.box3 Methods for Three-Dimensional Box
print.quad Print a Quadrature Scheme
project2segment Move Point To Nearest Line
rStraussHard Perfect Simulation of the Strauss-Hardcore Process
mean.im Maximum, Minimum, Mean, Median, Range or Sum of Pixel Values in an Image
levelset Level Set of a Pixel Image
linearpcf Linear Pair Correlation Function
rPoissonCluster Simulate Poisson Cluster Process
ppp Create a Point Pattern
latest.news Print News About Latest Version of Package
im Create a Pixel Image Object
model.matrix.slrm Extract Design Matrix from Spatial Logistic Regression Model
hyytiala Scots pines and other trees at Hyytiala
plot.plotppm Plot a plotppm Object Created by plot.ppm
methods.pp3 Methods for three-dimensional point patterns
nnclean Nearest Neighbour Clutter Removal
murchison Murchison gold deposits
print.psp Print Brief Details of a Line Segment Pattern Dataset
rDiggleGratton Perfect Simulation of the Diggle-Gratton Process
fv.object Function Value Table
ppm.object Class of Fitted Point Process Models
is.marked.ppm Test Whether A Point Process Model is Marked
lohboot Bootstrap Confidence Bands for Summary Function
quantile.im Sample Quantiles of Pixel Image
profilepl Profile Maximum Pseudolikelihood
identify.ppp Identify Points in a Point Pattern
nncross Nearest Neighbours Between Two Patterns
rMaternII Simulate Matern Model II
rcell Simulate Baddeley-Silverman Cell Process
rGaussPoisson Simulate Gauss-Poisson Process
quadrat.test Dispersion Test for Spatial Point Pattern Based on Quadrat Counts
rescale.psp Convert Line Segment Pattern to Another Unit of Length
markcorrint Mark Correlation Integral
nearest.raster.point Find Pixel Nearest to a Given Point
miplot Morishita Index Plot
formula.fv Extract or Change the Plot Formula for a Function Value Table
nncross.pp3 Nearest Neighbours Between Two Patterns in 3D
km.rs Kaplan-Meier and Reduced Sample Estimator using Histograms
methods.lpp Methods for Point Patterns on a Linear Network
fitin.ppm Extract the Interaction from a Fitted Point Process Model
logLik.ppm Log Likelihood and AIC for Point Process Model
osteo Osteocyte Lacunae Data: Replicated Three-Dimensional Point Patterns
rhohat Smoothing Estimate of Covariate Transformation
eval.im Evaluate Expression Involving Pixel Images
kppm Fit Cluster or Cox Point Process Model
density.ppp Kernel Smoothed Intensity of Point Pattern
nztrees New Zealand Trees Point Pattern
linearKdot Multitype K Function (Dot-type) for Linear Point Pattern
nnwhich Nearest neighbour
plot.psp plot a Spatial Line Segment Pattern
rVarGamma Simulate Neyman-Scott Point Process with Variance Gamma cluster kernel
layered Create List of Plotting Layers
pcf3est Pair Correlation Function of a Three-Dimensional Point Pattern
raster.x Cartesian Coordinates for a Pixel Raster
markconnect Mark Connection Function
nsegments Number of Line Segments in a Line Segment Pattern
plot.hyperframe Plot Entries in a Hyperframe
rescale Convert dataset to another unit of length
owin Create a Window
iplot Point and Click Interface for Displaying Spatial Data
update.rmhcontrol Update Control Parameters of Metropolis-Hastings Algorithm
rmhmodel.list Define Point Process Model for Metropolis-Hastings Simulation.
spatstat-internal Internal spatstat functions
qqplot.ppm Q-Q Plot of Residuals from Fitted Point Process Model
rlinegrid Generate grid of parallel lines with random displacement
is.hybrid Test Whether Object is a Hybrid
pairdist.ppx Pairwise Distances in Any Dimensions
pool Pool Data
predict.lppm Predict Point Process Model on Linear Network
rmh Simulate point patterns using the Metropolis-Hastings algorithm.
lansing Lansing Woods Point Pattern
shift.ppp Apply Vector Translation To Point Pattern
quadscheme Generate a Quadrature Scheme from a Point Pattern
nndist.psp Nearest neighbour distances between line segments
pairdist.ppp Pairwise distances
unique.ppp Extract Unique Points from a Spatial Point Pattern
rHardcore Perfect Simulation of the Hardcore Process
ppm Fit Point Process Model to Data
rescale.owin Convert Window to Another Unit of Length
rStrauss Perfect Simulation of the Strauss Process
pairdist.lpp Pairwise shortest-path distances between points on a linear network
residuals.ppm Residuals for Fitted Point Process Model
plot.im Plot a Pixel Image
progressreport Print Progress Reports
linearpcfdot.inhom Inhomogeneous Multitype Pair Correlation Function (Dot-type) for Linear Point Pattern
rmpoispp Generate Multitype Poisson Point Pattern
pcf.fasp Pair Correlation Function obtained from array of K functions
rCauchy Simulate Neyman-Scott Point Process with Cauchy cluster kernel
rotate.ppp Rotate a Point Pattern
plot.linnet Plot a linear network
rmhmodel.ppm Interpret Fitted Model for Metropolis-Hastings Simulation.
reflect Reflect In Origin
suffstat Sufficient Statistic of Point Process Model
rpoispp3 Generate Poisson Point Pattern in Three Dimensions
shift Apply Vector Translation
is.ppp Test Whether An Object Is A Point Pattern
rpoisline Generate Poisson Random Line Process
psst Pseudoscore Diagnostic For Fitted Model against General Alternative
rshift.psp Randomly Shift a Line Segment Pattern
reach Interaction Distance of a Point Process
scalardilate Apply Scalar Dilation
rthin Random Thinning
rThomas Simulate Thomas Process
rjitter Random Perturbation of a Point Pattern
methods.boxx Methods for Multi-Dimensional Box
rstrat Simulate Stratified Random Point Pattern
round.ppp Apply Numerical Rounding to Spatial Coordinates
rat Ratio object
lpp Create Point Pattern on Linear Network
matclust.estpcf Fit the Matern Cluster Point Process by Minimum Contrast Using Pair Correlation
shift.psp Apply Vector Translation To Line Segment Pattern
rpoisppOnLines Generate Poisson Point Pattern on Line Segments
vcov.slrm Variance-Covariance Matrix for a Fitted Spatial Logistic Regression
markvario Mark Variogram
methods.fii Methods for Fitted Interactions
whist Weighted Histogram
methods.funxy Methods for Spatial Functions
linearpcfinhom Inhomogeneous Linear Pair Correlation Function
psstG Pseudoscore Diagnostic For Fitted Model against Saturation Alternative
psp Create a Line Segment Pattern
midpoints.psp Midpoints of Line Segment Pattern
methods.kppm Methods for Cluster Point Process Models
will.expand Test Expansion Rule
rlabel Random Re-Labelling of Point Pattern
plot.layered Layered Plot
is.empty Test Whether An Object Is Empty
split.ppx Divide Multidimensional Point Pattern into Sub-patterns
scan.test Spatial Scan Test
runifpoint3 Generate N Uniform Random Points in Three Dimensions
pairsat.family Saturated Pairwise Interaction Point Process Family
simdat Simulated Point Pattern
quadratresample Resample a Point Pattern by Resampling Quadrats
paracou Kimboto trees at Paracou, French Guiana
model.matrix.ppm Extract Design Matrix from Point Process Model
rpoislinetess Poisson Line Tessellation
model.images Compute Images of Constructed Covariates
plot.envelope Plot a Simulation Envelope
matclust.estK Fit the Matern Cluster Point Process by Minimum Contrast
overlap.owin Compute Area of Overlap
summary.ppp Summary of a Point Pattern Dataset
timed Record the Computation Time
pool.envelope Pool Data from Several Envelopes
rho2hat Smoothed Relative Density of Pairs of Covariate Values
rMosaicField Mosaic Random Field
shift.im Apply Vector Translation To Pixel Image
rpoint Generate N Random Points
rmh.ppm Simulate from a Fitted Point Process Model
rmh.default Simulate Point Process Models using the Metropolis-Hastings Algorithm.
summary.splitppp Summary of a Split Point Pattern
vcov.kppm Variance-Covariance Matrix for a Fitted Cluster Point Process Model
simulate.kppm Simulate a Fitted Cluster Point Process Model
thomas.estpcf Fit the Thomas Point Process by Minimum Contrast
setcov Set Covariance of a Window
rNeymanScott Simulate Neyman-Scott Process
summary.listof Summary of a List of Things
summary.ppm Summarizing a Fitted Point Process Model
smooth.fv Apply Smoothing to Function Values
transect.im Pixel Values Along a Transect
vertices Vertices of a Window
rmhcontrol Set Control Parameters for Metropolis-Hastings Algorithm.
rsyst Simulate systematic random point pattern
scaletointerval Rescale Data to Lie Between Specified Limits
pppmatching Create a Point Matching
methods.layered Methods for Layered Objects
localpcf Local pair correlation function
plot.linim Plot Pixel Image on Linear Network
summary.psp Summary of a Line Segment Pattern Dataset
stratrand Stratified random point pattern
redwood California Redwoods Point Pattern (Ripley's Subset)
runifdisc Generate N Uniform Random Points in a Disc
rotate.im Rotate a Pixel Image
methods.ppx Methods for Multidimensional Space-Time Point Patterns
smooth.msr Smooth a Signed or Vector-Valued Measure
rDGS Perfect Simulation of the Diggle-Gates-Stibbard Process
rshift.splitppp Randomly Shift a List of Point Patterns
spatstat-deprecated Deprecated spatstat functions
methods.rhohat Methods for Intensity Functions of Spatial Covariate
rpoislpp Poisson Point Process on a Linear Network
superimpose Superimpose Several Geometric Patterns
rotate Rotate
pairdist.pp3 Pairwise distances in Three Dimensions
simulate.slrm Simulate a Fitted Spatial Logistic Regression Model
runiflpp Uniform Random Points on a Linear Network
nndist.lpp Nearest neighbour distances on a linear network
ppx Multidimensional Space-Time Point Pattern
triplet.family Triplet Interaction Family
rMaternI Simulate Matern Model I
opening Morphological Opening
nnwhich.pp3 Nearest neighbours in three dimensions
runifpointOnLines Generate N Uniform Random Points On Line Segments
scanpp Read Point Pattern From Data File
union.quad Union of Data and Dummy Points
nncorr Nearest-Neighbour Correlation Indices of Marked Point Pattern
plot.tess Plot a tessellation
sharpen Data Sharpening of Point Pattern
mucosa Cells in Gastric Mucosa
rotate.owin Rotate a Window
rshift.ppp Randomly Shift a Point Pattern
urkiola Urkiola Woods Point Pattern
summary.owin Summary of a Spatial Window
pointsOnLines Place Points Evenly Along Specified Lines
waka Trees in Waka national park
spatstat.options Internal Options in Spatstat Package
rSSI Simulate Simple Sequential Inhibition
sidelengths.owin Side Lengths of Enclosing Rectangle of a Window
rmhmodel Define Point Process Model for Metropolis-Hastings Simulation.
spruces Spruces Point Pattern
selfcrossing.psp Crossing Points in a Line Segment Pattern
solutionset Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True
tile.areas Compute Areas of Tiles in a Tessellation
shift.owin Apply Vector Translation To Window
which.max.im Identify Pixelwise Maximum of Several Pixel Images
simplify.owin Approximate a Polygon by a Simpler Polygon
sumouter Compute Quadratic Forms
with.fv Evaluate an Expression in a Function Table
vargamma.estK Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
update.ppm Update a Fitted Point Process Model
spatstat-package The Spatstat Package
split.ppp Divide Point Pattern into Sub-patterns
summary.quad Summarizing a Quadrature Scheme
pcfcross Multitype pair correlation function (cross-type)
swedishpines Swedish Pines Point Pattern
vargamma.estpcf Fit the Neyman-Scott Cluster Point Process with Variance Gamma kernel
rMatClust Simulate Matern Cluster Process
pcfinhom Inhomogeneous Pair Correlation Function
pool.fasp Pool Data from Several Function Arrays
rgbim Create Colour-Valued Pixel Image
rescale.ppp Convert Point Pattern to Another Unit of Length
tiles Extract List of Tiles in a Tessellation
varblock Estimate Variance of Summary Statistic by Subdivision
runifpoint Generate N Uniform Random Points
pairs.im Scatterplot Matrix for Pixel Images
tess Create a Tessellation
pixelquad Quadrature Scheme Based on Pixel Grid
plot.listof Plot a List of Things
pool.quadrattest Pool Several Quadrat Tests
unmark Remove Marks
pool.rat Pool Data from Several Ratio Objects
rMosaicSet Mosaic Random Set
rotate.psp Rotate a Line Segment Pattern
smooth.ppp Spatial smoothing of observations at irregular points
predict.kppm Prediction from a Fitted Cluster Point Process Model
reduced.sample Reduced Sample Estimator using Histogram Data
pppmatching.object Class of Point Matchings
rknn Theoretical Distribution of Nearest Neighbour Distance
relrisk Nonparametric Estimate of Spatially-Varying Relative Risk
rmhmodel.default Build Point Process Model for Metropolis-Hastings Simulation.
summary.im Summarizing a Pixel Image
vcov.ppm Variance-Covariance Matrix for a Fitted Point Process Model
Extract.listof Extract or Replace Subset of a List of Things
Jest Estimate the J-function
Linhom L-function
MultiHard The Multitype Hard Core Point Process Model
Smooth Spatial smoothing of data
append.psp Combine Two Line Segment Patterns
bdist.tiles Distance to Boundary of Window
bw.relrisk Cross Validated Bandwidth Selection for Relative Risk Estimation
bronzefilter Bronze gradient filter data
closing Morphological Closing
dclf.progress Progress Plot of Test of Spatial Pattern
default.rmhcontrol Set Default Control Parameters for Metropolis-Hastings Algorithm.
duplicated.ppp Determine Duplicated Points in a Spatial Point Pattern
intersect.owin Intersection, Union or Set Subtraction of Two Windows
is.ppm Test Whether An Object Is A Fitted Point Process Model
localKinhom Inhomogeneous Neighbourhood Density Function
methods.lppm Methods for Fitted Point Process Models on a Linear Network
nnwhich.ppx Nearest Neighbours in Any Dimensions
owin.object Class owin
plot.bermantest Plot Result of Berman Test
plot.fv Plot Function Values
plot.kstest Plot a Spatial Kolmogorov-Smirnov Test
predict.slrm Predicted or Fitted Values from Spatial Logistic Regression
quad.object Class of Quadrature Schemes
simulate.ppm Simulate a Fitted Gibbs Point Process Model
AreaInter The Area Interaction Point Process Model
Extract.msr Extract Subset of Signed or Vector Measure
Extract.psp Extract Subset of Line Segment Pattern
Kmulti.inhom Inhomogeneous Marked K-Function
SatPiece Piecewise Constant Saturated Pairwise Interaction Point Process Model
affine Apply Affine Transformation
affine.ppp Apply Affine Transformation To Point Pattern
as.data.frame.hyperframe Coerce Hyperframe to Data Frame
clarkevans.test Clark and Evans Test
contour.im Contour plot of pixel image
crossdist.pp3 Pairwise distances between two different three-dimensional point patterns
dfbetas.ppm Parameter influence measure
crossing.psp Crossing Points of Two Line Segment Patterns
discretise Safely Convert Point Pattern Window to Binary Mask
envelope.envelope Recompute Envelopes
ganglia Beta Ganglion Cells in Cat Retina, Old Version
harmonise.im Make Pixel Images Compatible
formula.ppm Model Formulae for Gibbs Point Process Models
gridweights Compute Quadrature Weights Based on Grid Counts
methods.linnet Methods for Linear Networks
pairwise.family Pairwise Interaction Process Family
plot.influence.ppm Plot Influence Measure
plot.msr Plot a Signed or Vector-Valued Measure
quadrat.test.splitppp Dispersion Test of CSR for Split Point Pattern Based on Quadrat Counts
rescue.rectangle Convert Window Back To Rectangle
residualspaper Data and Code From JRSS Discussion Paper on Residuals
rshift Random Shift
split.im Divide Image Into Sub-images
stieltjes Compute Integral of Function Against Cumulative Distribution
zapsmall.im Rounding of Pixel Values
Softcore The Soft Core Point Process Model
anemones Beadlet Anemones Data
as.interact Extract Interaction Structure
by.im Apply Function to Image Broken Down by Factor
default.dummy Generate a Default Pattern of Dummy Points
expand.owin Apply Expansion Rule
harmonic Basis for Harmonic Functions
heather Diggle's Heather Data
incircle Find Largest Circle Inside Window
lgcp.estpcf Fit a Log-Gaussian Cox Point Process by Minimum Contrast
linfun Function on a Linear Network
logLik.slrm Loglikelihood of Spatial Logistic Regression
linearKcross.inhom Inhomogeneous multitype K Function (Cross-type) for Linear Point Pattern
marks.psp Marks of a Line Segment Pattern
methods.slrm Methods for Spatial Logistic Regression Models
methods.units Methods for Units
markcorr Mark Correlation Function
nndist.ppx Nearest Neighbour Distances in Any Dimensions
nndist.pp3 Nearest neighbour distances in three dimensions
nnfun.lpp Nearest Neighbour Map on Linear Network
periodify Make Periodic Copies of a Spatial Pattern
plot.ppm plot a Fitted Point Process Model
plot.splitppp Plot a List of Point Patterns
quadrats Divide Region into Quadrats
quadscheme.logi Generate a Logistic Regression Quadrature Scheme from a Point Pattern
rpoispp Generate Poisson Point Pattern
slrm Spatial Logistic Regression
square Square Window
tweak.colourmap Change Colour Values in a Colour Map
unitname Name for Unit of Length
unnormdensity Weighted kernel smoother
update.kppm Update a Fitted Cluster Point Process Model
with.hyperframe Evaluate an Expression in Each Row of a Hyperframe
Extract.lpp Extract Subset of Point Pattern on Linear Network
Gdot Multitype Nearest Neighbour Distance Function (i-to-any)
Jcross Multitype J Function (i-to-j)
LennardJones The Lennard-Jones Potential
anova.lppm ANOVA for Fitted Point Process Models on Linear Network
as.matrix.owin Convert Pixel Image to Matrix
clusterset Allard-Fraley Estimator of Cluster Feature
convexhull.xy Convex Hull of Points
copper Berman-Huntington points and lines data
coef.ppm Coefficients of Fitted Point Process Model
dummify Convert Data to Numeric Values by Constructing Dummy Variables
flipxy Exchange X and Y Coordinates
funxy Spatial Function Class
intensity.ppm Intensity of Fitted Point Process Model
lppm Fit Point Process Model to Point Pattern on Linear Network
lut Lookup Tables
npoints Number of Points in a Point Pattern
plot.colourmap Plot a Colour Map
plot.lppm Plot a Fitted Point Process Model on a Linear Network
pp3 Three Dimensional Point Pattern
quadratcount Quadrat counting for a point pattern
print.ppp Print Brief Details of a Point Pattern Dataset
rLGCP Simulate Log-Gaussian Cox Process
rpoisppx Generate Poisson Point Pattern in Any Dimensions
tilenames Names of Tiles in a Tessellation
trim.rectangle Cut margins from rectangle
Extract.owin Extract Subset of Window
Finhom Inhomogeneous Empty Space Function
as.tess Convert Data To Tessellation
Kmeasure Reduced Second Moment Measure
bounding.box.xy Convex Hull of Points
bw.ppl Likelihood Cross Validation Bandwidth Selection for Kernel Density
chicago Chicago Street Crime Data
chorley Chorley-Ribble Cancer Data
collapse.fv Collapse Several Function Tables into One
colourmap Colour Lookup Tables
corners Corners of a rectangle
eem Exponential Energy Marks
fryplot Fry Plot of Point Pattern
hist.im Histogram of Pixel Values in an Image
imcov Spatial Covariance of a Pixel Image
lgcp.estK Fit a Log-Gaussian Cox Point Process by Minimum Contrast
nnwhich.lpp Identify Nearest Neighbours on a Linear Network
pairdist Pairwise distances
pcf Pair Correlation Function
perimeter Perimeter Length of Window
parres Partial Residuals for Point Process Model
plot.fasp Plot a Function Array
project.ppm Force Point Process Model to be Valid
psstA Pseudoscore Diagnostic For Fitted Model against Area-Interaction Alternative
plot.quad plot a Spatial Quadrature Scheme
rescale.im Convert Pixel Image to Another Unit of Length
ripras Estimate window from points alone
rmhexpand Specify Simulation Window or Expansion Rule
rmpoint Generate N Random Multitype Points
runifpointx Generate N Uniform Random Points in Any Dimensions
sessionLibs Print Names and Version Numbers of Libraries Loaded
shapley Galaxies in the Shapley Supercluster
simplenet Simple Example of Linear Network
spokes Spokes pattern of dummy points
thomas.estK Fit the Thomas Point Process by Minimum Contrast
valid.ppm Check Whether Point Process Model is Valid
volume Volume of an Object
rcellnumber Generate Random Numbers of Points for Cell Process
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Date 2013-11-03
License GPL (>= 2)
URL http://www.spatstat.org
LazyData true
LazyLoad true
ByteCompile true
Packaged 2013-11-03 05:22:24 UTC; adrian
NeedsCompilation yes
Repository CRAN
Date/Publication 2013-11-03 10:34:29

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