spatstat v1.20-3

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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 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. 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).

Functions in spatstat

Name Description
DiggleGratton Diggle-Gratton model
Lcross Multitype L-function (cross-type)
bei Tropical rain forest trees
Geyer Geyer's Saturation Point Process Model
MultiStrauss The Multitype Strauss Point Process Model
Kest K-function
Extract.im Extract Subset of Image
LennardJones The Lennard-Jones Potential
G3est Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern
affine.psp Apply Affine Transformation To Line Segment Pattern
Kmulti Marked K-Function
Extract.psp Extract Subset of Line Segment Pattern
Jmulti Marked J Function
Lest L-function
Hest Spherical Contact Distribution Function
betacells Beta Ganglion Cells in Cat Retina
areaGain Difference of Disc Areas
Strauss The Strauss Point Process Model
Gmulti Marked Nearest Neighbour Distance Function
StraussHard The Strauss / Hard Core Point Process Model
as.polygonal Convert a Window to a Polygonal Window
Extract.quad Subset of Quadrature Scheme
crossdist.ppx Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
as.hyperframe Convert Data to Hyperframe
as.mask Pixel Image Approximation of a Window
bounding.box.xy Convex Hull of Points
Linhom L-function
BadGey Hybrid Geyer Point Process Model
as.data.frame.im Convert Pixel Image to Data Frame
bermantest Berman's Tests for Point Process Model
OrdThresh Ord's Interaction model
Ldot Multitype L-function (i-to-any)
crossdist.psp Pairwise distances between two different line segment patterns
Kinhom Inhomogeneous K-function
affine Apply Affine Transformation
as.rectangle Window Frame
colourtools Convert and Compare Colours in Different Formats
DiggleGatesStibbard Diggle-Gates-Stibbard Point Process Model
ants Harkness-Isham ants' nests data
distfun Distance Map as a Function
Saturated Saturated Pairwise Interaction model
areaLoss Difference of Disc Areas
as.ppp Convert Data To Class ppp
Extract.fasp Extract Subset of Function Array
Extract.listof Extract or Replace Subset of a List of Things
disc Circular Window
as.hyperframe.ppx Extract coordinates and marks of multidimensional point pattern
bdist.pixels Distance to Boundary of Window
alltypes Calculate Summary Statistic for All Types in a Multitype Point Pattern
bramblecanes Hutchings' Bramble Canes data
hist.im Histogram of Pixel Values in an Image
Lcross.inhom Inhomogeneous Cross Type L Function
Kcross.inhom Inhomogeneous Cross K Function
dirichlet.weights Compute Quadrature Weights Based on Dirichlet Tessellation
infline Infinite Straight Lines
centroid.owin Centroid of a window
interp.im Interpolate a Pixel Image
bounding.box Bounding Box of a Window or Point Pattern
Gfox Foxall's Distance Functions
boxx Multi-Dimensional Box
diameter.boxx Geometrical Calculations for Multi-Dimensional Box
clickpoly Interactively Define a Polygon
fasp.object Function Arrays for Spatial Patterns
bronzefilter Bronze gradient filter data
affine.owin Apply Affine Transformation To Window
latest.news Print News About Latest Version of Package
PairPiece The Piecewise Constant Pairwise Interaction Point Process Model
AreaInter The Area Interaction Point Process Model
Pairwise Generic Pairwise Interaction model
MultiStraussHard The Multitype/Hard Core Strauss Point Process Model
density.ppp Kernel Smoothed Intensity of Point Pattern
as.im Convert to Pixel Image
finpines Pine saplings in Finland.
crossing.psp Crossing Points of Two Line Segment Patterns
heather Diggle's Heather Data
corners Corners of a rectangle
as.data.frame.ppp Coerce Point Pattern to a Data Frame
default.expand Compute Expansion Window for Simulation
osteo Osteocyte Lacunae Data: Replicated Three-Dimensional Point Patterns
as.box3 Convert Data to Three-Dimensional Box
effectfun Compute Fitted Effect of a Spatial Covariate in a Point Process Model
markvario Mark Variogram
as.psp Convert Data To Class psp
dilation Morphological Dilation
eem Exponential Energy Marks
fv.object Data Frames of Function Values
as.data.frame.hyperframe Coerce Hyperframe to Data Frame
gpc2owin Convert Polygonal Region into Different Format
diameter Diameter of an Object
Jdot Multitype J Function (i-to-any)
adaptive.density Intensity Estimate of Point Pattern Using Tessellation
Gdot Multitype Nearest Neighbour Distance Function (i-to-any)
convexhull.xy Convex Hull of Points
is.im Test Whether An Object Is A Pixel Image
is.convex Test Whether a Window is Convex
Softcore The Soft Core Point Process Model
anova.ppm ANOVA for Fitted Point Process Models
fryplot Fry Plot of Point Pattern
applynbd Apply Function to Every Neighbourhood in a Point Pattern
lansing Lansing Woods Point Pattern
angles.psp Orientation Angles of Line Segments
matclust.estpcf Fit the Matern Cluster Point Process by Minimum Contrast Using Pair Correlation
complement.owin Take Complement of a Window
cut.ppp Classify Points in a Point Pattern
japanesepines Japanese Pines Point Pattern
pcf.fv Pair Correlation Function obtained from K Function
nncross Nearest Neighbours Between Two Patterns
contour.im Contour plot of pixel image
Fest Estimate the empty space function F
eval.fasp Evaluate Expression Involving Function Arrays
distmap Distance Map
Extract.tess Extract or Replace Subset of Tessellation
box3 Three-Dimensional Box
pcfinhom Inhomogeneous Pair Correlation Function
Extract.fv Extract Subset of Function Values
Kdot Multitype K Function (i-to-any)
is.owin Test Whether An Object Is A Window
spatstat-deprecated Deprecated spatstat functions
Jest Estimate the J-function
crossdist Pairwise distances
discpartarea Area of Part of Disc
Extract.ppp Extract or Replace Subset of Point Pattern
reduced.sample Reduced Sample Estimator using Histogram Data
pppmatching Create a Point Matching
im Create a Pixel Image Object
quad.object Class of Quadrature Schemes
anemones Beadlet Anemones Data
bdist.tiles Distance to Boundary of Window
miplot Morishita Index Plot
allstats Calculate four standard summary functions of a point pattern.
km.rs Kaplan-Meier and Reduced Sample Estimator using Histograms
Kest.fft K-function using FFT
clarkevans Clark and Evans Aggregation Index
is.multitype.ppm Test Whether A Point Process Model is Multitype
istat Point and Click Interface for Exploratory Analysis of Point Pattern
Emark Diagnostics for random marking
Kmeasure Reduced Second Moment Measure
pixelquad Quadrature Scheme Based on Pixel Grid
project2segment Move Point To Nearest Line
owin.object Class owin
append.psp Combine Two Line Segment Patterns
plot.im Plot a Pixel Image
rmh Simulate point patterns using the Metropolis-Hastings algorithm.
as.matrix.im Convert Pixel Image to Matrix
pppdist Distance Between Two Point Patterns
mincontrast Method of Minimum Contrast
Hardcore The Hard Core Point Process Model
diagnose.ppm Diagnostic Plots for Fitted Point Process Model
as.tess Convert Data To Tessellation
pairdist.ppx Pairwise Distances in Any Dimensions
Iest Estimate the I-function
nztrees New Zealand Trees Point Pattern
is.empty Test Whether An Object Is Empty
rpoisppx Generate Poisson Point Pattern in Any Dimensions
copper Berman-Huntington points and lines data
rotate.ppp Rotate a Point Pattern
area.owin Area of a Window
compatible.fv Test Whether Two Function Objects Are Compatible
density.splitppp Kernel Smoothed Intensity of Split Point Pattern
convexhull Convex Hull
shift.owin Apply Vector Translation To Window
dirichlet Dirichlet Tessellation of Point Pattern
selfcrossing.psp Crossing Points in a Line Segment Pattern
rmpoispp Generate Multitype Poisson Point Pattern
plot.fv Plot Function Values
lut Lookup Tables
ganglia Beta Ganglion Cells in Cat Retina, Old Version
Kdot.inhom Inhomogeneous Multitype K Dot Function
is.marked.ppm Test Whether A Point Process Model is Marked
rMaternI Simulate Matern Model I
plot.quad plot a Spatial Quadrature Scheme
predict.kppm Prediction from a Fitted Cluster Point Process Model
intersect.tess Intersection of Two Tessellations
distmap.ppp Distance Map of Point Pattern
rescale.owin Convert Window to Another Unit of Length
blur Apply Gaussian Blur to a Pixel Image
matchingdist Distance for a Point Pattern Matching
rmhmodel.list Define Point Process Model for Metropolis-Hastings Simulation.
clickppp Interactively Add Points
closing Morphological Closing
affine.ppp Apply Affine Transformation To Point Pattern
bind.fv Combine Function Value Tables
nearestsegment Find Line Segment Nearest to Each Point
plot.plotppm Plot a plotppm Object Created by plot.ppm
border Border Region of a Window
is.ppm Test Whether An Object Is A Fitted Point Process Model
rstrat Simulate Stratified Random Point Pattern
harmonic Basis for Harmonic Functions
Ldot.inhom Inhomogeneous Multitype L Dot Function
by.im Apply Function to Image Broken Down by Factor
plot.listof Plot a List of Things
nnwhich.pp3 Nearest neighbours in three dimensions
Gest Nearest Neighbour Distance Function G
delaunay Delaunay Triangulation of Point Pattern
hyperframe Hyper Data Frame
Ord Generic Ord Interaction model
rpoislinetess Poisson Line Tessellation
nearest.raster.point Find Pixel Nearest to a Given Point
rMosaicSet Mosaic Random Set
eval.im Evaluate Expression Involving Pixel Images
cells Biological Cells Point Pattern
concatxy Concatenate x,y Coordinate Vectors
bdist.points Distance to Boundary of Window
quadratresample Resample a Point Pattern by Resampling Quadrats
rmh.default Simulate Point Process Models using the Metropolis-Hastings Algorithm.
unmark Remove Marks
compatible.fasp Test Whether Two Function Arrays Are Compatible
Extract.splitppp Extract or Replace Sub-Patterns
plot.tess Plot a tessellation
ppp Create a Point Pattern
by.ppp Apply a Function to a Point Pattern Broken Down by Factor
nbfires Point Patterns of New Brunswick Forest Fires
fitin.ppm Extract the Interaction from a Fitted Point Process Model
rescue.rectangle Convert Window Back To Rectangle
matclust.estK Fit the Matern Cluster Point Process by Minimum Contrast
diameter.box3 Geometrical Calculations for Three-Dimensional Box
im.object Class of Images
update.kppm Update a Fitted Cluster Point Process Model
quadscheme Generate a Quadrature Scheme from a Point Pattern
vcov.ppm Variance-Covariance Matrix for a Fitted Point Process Model
kstest.ppm Kolmogorov-Smirnov Test for Point Process Model
simdat Simulated Point Pattern
summary.quad Summarizing a Quadrature Scheme
rotate Rotate
lengths.psp Lengths of Line Segments
summary.splitppp Summary of a Split Point Pattern
envelope Simulation Envelopes of Summary Function
hamster Aherne's hamster tumour data
rlinegrid Generate grid of parallel lines with random displacement
summary.listof Summary of a List of Things
quad.ppm Extract Quadrature Scheme Used to Fit a Point Process Model
pixellate Convert Spatial Object to Pixel Image
dilated.areas Areas of Morphological Dilations
rshift.splitppp Randomly Shift a List of Point Patterns
localK Neighbourhood density function
inforder.family Infinite Order Interaction Family
plot.envelope Plot a Simulation Envelope
with.hyperframe Evaluate an Expression in Each Row of a Hyperframe
rpoisline Generate Poisson Random Line Process
incircle Find Largest Circle Inside Window
crossdist.ppp Pairwise distances between two different point patterns
is.multitype Test whether Object is Multitype
fv Create a Function Value Table
as.owin Convert Data To Class owin
methods.distfun Methods for Distance Functions
methods.ppx Methods for Multidimensional Space-Time Point Patterns
crossdist.pp3 Pairwise distances between two different three-dimensional point patterns
SatPiece Piecewise Constant Saturated Pairwise Interaction Point Process Model
quadrats Divide Region into Quadrats
print.ppm Print a Fitted Point Process Model
midpoints.psp Midpoints of Line Segment Pattern
residuals.ppm Residuals for Fitted Point Process Model
levelset Level Set of a Pixel Image
expand.owin Expand Window By Factor
rmhmodel Define Point Process Model for Metropolis-Hastings Simulation.
iplot Point and Click Interface for Displaying a Point Pattern
K3est K-function of a Three-Dimensional Point Pattern
fitted.ppm Fitted Conditional Intensity for Point Process Model
pixellate.psp Convert Line Segment Pattern to Pixel Image
thomas.estK Fit the Thomas Point Process by Minimum Contrast
mean.im Maximum, Minimum, Mean, Median, Range or Sum of Pixel Values in an Image
distmap.owin Distance Map of Window
methods.box3 Methods for Three-Dimensional Box
density.psp Kernel Smoothing of Line Segment Pattern
letterR Window in Shape of Letter R
duplicated.ppp Determine Duplicated Points in a Spatial Point Pattern
pcfcross.inhom Inhomogeneous Multitype Pair Correlation Function (Cross-Type)
nnwhich.ppx Nearest Neighbours in Any Dimensions
tess Create a Tessellation
logLik.ppm Log Likelihood for Poisson Point Process Model
pcfdot.inhom Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type)
ord.family Ord Interaction Process Family
rSSI Simulate Simple Sequential Inhibition
coords Extract Coordinates of a Spatial or Spatiotemporal Point Pattern
diameter.owin Diameter of a Window
humberside Humberside Data on Childhood Leukaemia and Lymphoma
compatible.im Test Whether Two Pixel Images Are Compatible
multiplicity.ppp Count Multiplicity of Duplicate Points
runifpointx Generate N Uniform Random Points in Any Dimensions
psp.object Class of Line Segment Patterns
suffstat Sufficient Statistic of Point Process Model
shift.psp Apply Vector Translation To Line Segment Pattern
psp Create a Line Segment Pattern
rescale.im Convert Pixel Image to Another Unit of Length
quadratcount Quadrat counting for a point pattern
split.ppp Divide Point Pattern into Sub-patterns
marks Marks of a Point Pattern
nnclean Nearest Neighbour Clutter Removal
rpoispp3 Generate Poisson Point Pattern in Three Dimensions
print.owin Print Brief Details of a Spatial Window
runifpointOnLines Generate N Uniform Random Points On Line Segments
pixellate.owin Convert Window to Pixel Image
murchison Murchison gold deposits
simulate.kppm Simulate a Fitted Cluster Point Process Model
print.im Print Brief Details of an Image
demopat Artificial Data Point Pattern
qqplot.ppm Q-Q Plot of Residuals from Fitted Point Process Model
Replace.im Reset Values in Subset of Image
quadrat.test Chi-Squared Dispersion Test for Spatial Point Pattern Based on Quadrat Counts
nndist.psp Nearest neighbour distances between line segments
pairdist.default Pairwise distances
rmh.ppm Simulate from a Fitted Point Process Model
rmpoint Generate N Random Multitype Points
rshift.ppp Randomly Shift a Point Pattern
as.data.frame.psp Coerce Line Segment Pattern to a Data Frame
perimeter Perimeter Length of Window
eroded.areas Areas of Morphological Erosions
discretise Safely Convert Point Pattern Window to Binary Mask
profilepl Profile Maximum Pseudolikelihood
pcfcross Multitype pair correlation function (cross-type)
summary.ppm Summarizing a Fitted Point Process Model
marktable Tabulate Marks in Neighbourhood of Every Point in a Point Pattern
quantile.im Sample Quantiles of Pixel Image
lgcp.estK Fit a Log-Gaussian Cox Point Process by Minimum Contrast
ppx Multidimensional Space-Time Point Pattern
ewcdf Weighted Empirical Cumulative Distribution Function
methods.pp3 Methods for three-dimensional point patterns
plot.kppm Plot a fitted cluster point process
rsyst Simulate systematic random point pattern
deltametric Delta Metric
markcorrint Mark Correlation Integral
rMatClust Simulate Matern Cluster Process
rMaternII Simulate Matern Model II
envelope.pp3 Simulation Envelopes of Summary Function for 3D Point Pattern
volume Volume of an Object
scanpp Read Point Pattern From Data File
plot.bermantest Plot Result of Berman Test
pairsat.family Saturated Pairwise Interaction Point Process Family
nncorr Nearest-Neighbour Correlation Indices of Marked Point Pattern
pairs.im Scatterplot Matrix for Pixel Images
ppp.object Class of Point Patterns
residualspaper Data and Code From JRSS Discussion Paper on Residuals
nndist Nearest neighbour distances
runifdisc Generate N Uniform Random Points in a Disc
stieltjes Compute Integral of Function Against Cumulative Distribution
npoints Number of Points in a Point Pattern
integral.im Integral of a Pixel Image
is.ppp Test Whether An Object Is A Point Pattern
summary.owin Summary of a Spatial Window
spatstat-package The Spatstat Package
pcfdot Multitype pair correlation function (i-to-any)
rotate.psp Rotate a Line Segment Pattern
plot.fasp Plot a Function Array
tiles Extract List of Tiles in a Tessellation
owin Create a Window
pointsOnLines Place Points Evenly Along Specified Lines
erosion Morphological Erosion
rmhmodel.ppm Interpret Fitted Model for Metropolis-Hastings Simulation.
ppm Fit Point Process Model to Data
shift Apply Vector Translation
summary.im Summarizing a Pixel Image
spatstat.options Internal Options in Spatstat Package
identify.ppp Identify Points in a Point Pattern
unique.ppp Extract Unique Points from a Spatial Point Pattern
smooth.ppp Spatial smoothing of observations at irregular points
raster.x Cartesian Coordinates for a Pixel Raster
rknn Theoretical Distribution of Nearest Neighbour Distance
markstat Summarise Marks in Every Neighbourhood in a Point Pattern
rotate.owin Rotate a Window
plot.hyperframe Plot Entries in a Hyperframe
shift.ppp Apply Vector Translation To Point Pattern
print.ppp Print Brief Details of a Point Pattern Dataset
rjitter Random Perturbation of a Point Pattern
rshift.psp Randomly Shift a Line Segment Pattern
chop.tess Subdivide a Window or Tessellation using a Set of Lines
rmhcontrol Set Control Parameters for Metropolis-Hastings Algorithm.
persp.im Perspective Plot of Pixel Image
lgcp.estpcf Fit a Log-Gaussian Cox Point Process by Minimum Contrast
gridweights Compute Quadrature Weights Based on Grid Counts
markconnect Mark Connection Function
summary.psp Summary of a Line Segment Pattern Dataset
urkiola Urkiola Woods Point Pattern
with.fv Evaluate an Expression in a Function Table
collapse.fv Collapse Several Function Tables into One
nnwhich Nearest neighbour
plot.splitppp Plot a List of Point Patterns
plot.ppp plot a Spatial Point Pattern
runifpoint Generate N Uniform Random Points
ripras Estimate window from points alone
rescale.ppp Convert Point Pattern to Another Unit of Length
pixellate.ppp Convert Point Pattern to Pixel Image
rmhmodel.default Build Point Process Model for Metropolis-Hastings Simulation.
rMosaicField Mosaic Random Field
square Square Window
solutionset Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True
intersect.owin Intersection, Union or Set Subtraction of Two Windows
pairdist.pp3 Pairwise distances in Three Dimensions
ppm.object Class of Fitted Point Process Models
pcf.ppp Pair Correlation Function of Point Pattern
plot.owin Plot a Spatial Window
reach Interaction Distance of a Point Process
superimposePSP Superimpose Several Line Segment Patterns
endpoints.psp Endpoints of Line Segment Pattern
spatstat-internal Internal spatstat functions
whist Weighted Histogram
simplify.owin Approximate a Polygon by a Simpler Polygon
summary.ppp Summary of a Point Pattern Dataset
spruces Spruces Point Pattern
unitname Name for Unit of Length
pcf.fasp Pair Correlation Function obtained from array of K functions
rGaussPoisson Simulate Gauss-Poisson Process
Poisson Poisson Point Process Model
plot.kstest Plot a Spatial Kolmogorov-Smirnov Test
rThomas Simulate Thomas Process
simulate.ppm Simulate a Fitted Gibbs Point Process Model
gridcentres Rectangular grid of points
rthin Random Thinning
rescale.psp Convert Line Segment Pattern to Another Unit of Length
model.frame.ppm Extract the Environment of a Point Process Model
runifpoint3 Generate N Uniform Random Points in Three Dimensions
F3est Empty Space Function of a Three-Dimensional Point Pattern
rescale Convert dataset to another unit of length
print.quad Print a Quadrature Scheme
progressreport Print Progress Reports
nndist.ppx Nearest Neighbour Distances in Any Dimensions
rpoisppOnLines Generate Poisson Point Pattern on Line Segments
pppmatching.object Class of Point Matchings
rStrauss Perfect Simulation of the Strauss Process
nndist.pp3 Nearest neighbour distances in three dimensions
thomas.estpcf Fit the Thomas Point Process by Minimum Contrast
update.ppm Update a Fitted Point Process Model
rpoint Generate N Random Points
markcorr Mark Correlation Function
Kcross Multitype K Function (Cross-type)
pairdist Pairwise distances
default.dummy Generate a Default Pattern of Dummy Points
rmhstart Determine Initial State for Metropolis-Hastings Simulation.
Gcross Multitype Nearest Neighbour Distance Function (i-to-j)
rpoispp Generate Poisson Point Pattern
plot.colourmap Plot a Colour Map
pp3 Three Dimensional Point Pattern
setcov Set Covariance of a Window
spokes Spokes pattern of dummy points
amacrine Hughes' Amacrine Cell Data
rcell Simulate Baddeley-Silverman Cell Process
split.im Divide Image Into Sub-images
shift.im Apply Vector Translation To Pixel Image
vertices Vertices of a Window
model.matrix.ppm Extract Design Matrix from Point Process Model
trim.rectangle Cut margins from rectangle
model.images Compute Images of Constructed Covariates
kaplan.meier Kaplan-Meier Estimator using Histogram Data
superimpose Superimpose Several Point Patterns
is.subset.owin Determine Whether One Window is Contained In Another
Fiksel The Fiksel Interaction
cbind.hyperframe Combine Hyperframes by Rows or by Columns
as.mask.psp Convert Line Segment Pattern to Binary Pixel Mask
union.quad Union of Data and Dummy Points
pcf Pair Correlation Function
colourmap Colour Lookup Tables
Jcross Multitype J Function (i-to-j)
coef.ppm Coefficients of Fitted Point Process Model
rlabel Random Re-Labelling of Point Pattern
dummy.ppm Extract Dummy Points Used to Fit a Point Process Model
rNeymanScott Simulate Neyman-Scott Process
distmap.psp Distance Map of Line Segment Pattern
data.ppm Extract Original Data from a Fitted Point Process Model
clip.infline Intersect Infinite Straight Lines with a Window
inside.owin Test Whether Points Are Inside A Window
eval.fv Evaluate Expression Involving Functions
lurking Lurking variable plot
is.marked Test Whether Marks Are Present
is.marked.ppp Test Whether A Point Pattern is Marked
chorley Chorley-Ribble Cancer Data
plot.pp3 Plot a three-dimensional point pattern
methods.boxx Methods for Multi-Dimensional Box
predict.ppm Prediction from a Fitted Point Process Model
plot.psp plot a Spatial Line Segment Pattern
pairdist.psp Pairwise distances between line segments
print.psp Print Brief Details of a Line Segment Pattern Dataset
pairwise.family Pairwise Interaction Process Family
connected Connected components of an image or window
ponderosa Ponderosa Pine Tree Point Pattern
pairdist.ppp Pairwise distances
redwoodfull California Redwoods Point Pattern (Entire Dataset)
cut.im Convert Pixel Image from Numeric to Factor
kppm Fit cluster point process model
quadrat.test.splitppp Chi-Squared Test of CSR for Split Point Pattern
is.multitype.ppp Test Whether A Point Pattern is Multitype
opening Morphological Opening
periodify Make Periodic Copies of a Spatial Pattern
shapley Galaxies in the Shapley Supercluster
smooth.fv Apply Smoothing to Function Values
rshift Random Shift
swedishpines Swedish Pines Point Pattern
redwood California Redwoods Point Pattern (Ripley's Subset)
crossdist.default Pairwise distances between two different sets of points
plot.ppm plot a Fitted Point Process Model
longleaf Longleaf Pines Point Pattern
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Date 2010-08-23
License GPL (>= 2)
URL http://www.spatstat.org
Packaged 2010-08-24 06:57:00 UTC; adrian
Repository CRAN
Date/Publication 2010-08-24 10:48:17

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