spatstat v1.20-2


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


Date 2010-08-10
License GPL (>= 2)
Packaged 2010-08-10 07:29:04 UTC; adrian
Repository CRAN
Date/Publication 2010-08-10 14:17:18

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