spatstat v1.22-1


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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 K-functions, 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 etc. Point process models can be fitted to point pattern data using functions ppm, kppm, slrm similar to glm. Models may include dependence on covariates, interpoint interaction, cluster formation 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
Extract.splitppp Extract or Replace Sub-Patterns
Kcross Multitype K Function (Cross-type)
Softcore The Soft Core Point Process Model
deltametric Delta Metric
allstats Calculate four standard summary functions of a point pattern.
iplot Point and Click Interface for Displaying a Point Pattern
data.ppm Extract Original Data from a Fitted Point Process Model
crossdist.ppp Pairwise distances between two different point patterns Convert Pixel Image to Data Frame
by.ppp Apply a Function to a Point Pattern Broken Down by Factor
density.ppp Kernel Smoothed Intensity of Point Pattern
SatPiece Piecewise Constant Saturated Pairwise Interaction Point Process Model
copper Berman-Huntington points and lines data
Extract.msr Extract Subset of Signed or Vector Measure
Kcross.inhom Inhomogeneous Cross K Function
gpc2owin Convert Polygonal Region into Different Format
is.marked Test Whether Marks Are Present
bronzefilter Bronze gradient filter data
Ldot.inhom Inhomogeneous Multitype L Dot Function
crossing.psp Crossing Points of Two Line Segment Patterns
distmap.psp Distance Map of Line Segment Pattern
as.owin Convert Data To Class owin
density.splitppp Kernel Smoothed Intensity of Split Point Pattern
murchison Murchison gold deposits
DiggleGatesStibbard Diggle-Gates-Stibbard Point Process Model
unmark Remove Marks
rMatClust Simulate Matern Cluster Process
alltypes Calculate Summary Statistic for All Types in a Multitype Point Pattern
Extract.fv Extract Subset of Function Values
PairPiece The Piecewise Constant Pairwise Interaction Point Process Model
cbind.hyperframe Combine Hyperframes by Rows or by Columns
Geyer Geyer's Saturation Point Process Model
Extract.fasp Extract Subset of Function Array
affine.owin Apply Affine Transformation To Window
AreaInter The Area Interaction Point Process Model
Kest K-function
Poisson Poisson Point Process Model Convex Hull of Points
anemones Beadlet Anemones Data
append.psp Combine Two Line Segment Patterns
lgcp.estK Fit a Log-Gaussian Cox Point Process by Minimum Contrast
as.hyperframe.ppx Extract coordinates and marks of multidimensional point pattern
diameter.boxx Geometrical Calculations for Multi-Dimensional Box
Ord Generic Ord Interaction model
cells Biological Cells Point Pattern
as.psp Convert Data To Class psp Coerce Line Segment Pattern to a Data Frame
eval.fasp Evaluate Expression Involving Function Arrays
Kdot Multitype K Function (i-to-any) Coerce Hyperframe to Data Frame
amacrine Hughes' Amacrine Cell Data
marktable Tabulate Marks in Neighbourhood of Every Point in a Point Pattern
default.expand Compute Expansion Window for Simulation
expand.owin Expand Window By Factor
heather Diggle's Heather Data
as.hyperframe Convert Data to Hyperframe
midpoints.psp Midpoints of Line Segment Pattern
DiggleGratton Diggle-Gratton model
hamster Aherne's hamster tumour data
Hest Spherical Contact Distribution Function
ganglia Beta Ganglion Cells in Cat Retina, Old Version
distmap Distance Map
Kmeasure Reduced Second Moment Measure
dilated.areas Areas of Morphological Dilations
boxx Multi-Dimensional Box
Linhom L-function
bdist.points Distance to Boundary of Window
Kest.fft K-function using FFT
intersect.tess Intersection of Two Tessellations
cut.ppp Classify Points in a Point Pattern
Extract.psp Extract Subset of Line Segment Pattern
Ldot Multitype L-function (i-to-any)
compatible.fasp Test Whether Two Function Arrays Are Compatible
density.psp Kernel Smoothing of Line Segment Pattern
G3est Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern
methods.linnet Methods for Linear Networks
rStrauss Perfect Simulation of the Strauss Process
Jest Estimate the J-function
spatstat-deprecated Deprecated spatstat functions
levelset Level Set of a Pixel Image
plot.linnet Plot a linear network
as.polygonal Convert a Window to a Polygonal Window
nnwhich.pp3 Nearest neighbours in three dimensions
intersect.owin Intersection, Union or Set Subtraction of Two Windows
identify.psp Identify Segments in a Line Segment Pattern
Extract.quad Subset of Quadrature Scheme
anova.slrm Analysis of Deviance for Spatial Logistic Regression Models
plot.splitppp Plot a List of Point Patterns
im Create a Pixel Image Object
nnclean Nearest Neighbour Clutter Removal
Extract.ppp Extract or Replace Subset of Point Pattern
nncorr Nearest-Neighbour Correlation Indices of Marked Point Pattern
Strauss The Strauss Point Process Model
Lcross.inhom Inhomogeneous Cross Type L Function
demopat Artificial Data Point Pattern
area.owin Area of a Window
inside.owin Test Whether Points Are Inside A Window
npoints Number of Points in a Point Pattern
pointsOnLines Place Points Evenly Along Specified Lines Print News About Latest Version of Package
as.box3 Convert Data to Three-Dimensional Box
bermantest Berman's Tests for Point Process Model Convert to Pixel Image Pairwise Interaction Process Family
bdist.pixels Distance to Boundary of Window
owin Create a Window
pcfcross Multitype pair correlation function (cross-type)
default.dummy Generate a Default Pattern of Dummy Points
crossdist.pp3 Pairwise distances between two different three-dimensional point patterns
MultiStraussHard The Multitype/Hard Core Strauss Point Process Model
Gcross Multitype Nearest Neighbour Distance Function (i-to-j)
Lcross Multitype L-function (cross-type)
fryplot Fry Plot of Point Pattern
ppm Fit Point Process Model to Data
coords Extract or Change Coordinates of a Spatial or Spatiotemporal Point Pattern
LennardJones The Lennard-Jones Potential
as.mask Pixel Image Approximation of a Window Contour plot of pixel image
markstat Summarise Marks in Every Neighbourhood in a Point Pattern
runifpointOnLines Generate N Uniform Random Points On Line Segments
is.marked.ppp Test Whether A Point Pattern is Marked
clickjoin Interactively join vertices on a plot
plot.hyperframe Plot Entries in a Hyperframe
Pairwise Generic Pairwise Interaction model
methods.ppx Methods for Multidimensional Space-Time Point Patterns
Kdot.inhom Inhomogeneous Multitype K Dot Function
Iest Estimate the I-function Saturated Pairwise Interaction Point Process Family
finpines Pine saplings in Finland.
ppm.object Class of Fitted Point Process Models
rshift.ppp Randomly Shift a Point Pattern
quadratresample Resample a Point Pattern by Resampling Quadrats
plot.msr Plot a Signed or Vector-Valued Measure
redwoodfull California Redwoods Point Pattern (Entire Dataset)
plot.kppm Plot a fitted cluster point process
affine.psp Apply Affine Transformation To Line Segment Pattern Convert Pixel Image from Numeric to Factor
Jcross Multitype J Function (i-to-j)
collapse.fv Collapse Several Function Tables into One
crossdist.psp Pairwise distances between two different line segment patterns
shift Apply Vector Translation
quadrat.test Chi-Squared Dispersion Test for Spatial Point Pattern Based on Quadrat Counts Maximum, Minimum, Mean, Median, Range or Sum of Pixel Values in an Image
gridcentres Rectangular grid of points
diameter Diameter of an Object
ponderosa Ponderosa Pine Tree Point Pattern
distfun Distance Map as a Function
StraussHard The Strauss / Hard Core Point Process Model Ord Interaction Process Family
rGaussPoisson Simulate Gauss-Poisson Process
print.ppm Print a Fitted Point Process Model
rgbim Create Colour-Valued Pixel Image
clickppp Interactively Add Points
Jmulti Marked J Function
pcfdot Multitype pair correlation function (i-to-any)
pcfinhom Inhomogeneous Pair Correlation Function
angles.psp Orientation Angles of Line Segments
rMosaicField Mosaic Random Field Kaplan-Meier and Reduced Sample Estimator using Histograms
rthin Random Thinning
fitin.ppm Extract the Interaction from a Fitted Point Process Model
reduced.sample Reduced Sample Estimator using Histogram Data
plot.ppp plot a Spatial Point Pattern
dilation Morphological Dilation
pairdist.ppp Pairwise distances
harmonic Basis for Harmonic Functions
gridweights Compute Quadrature Weights Based on Grid Counts
diagnose.ppm Diagnostic Plots for Fitted Point Process Model Evaluate Expression Involving Pixel Images
affine.ppp Apply Affine Transformation To Point Pattern
rshift.psp Randomly Shift a Line Segment Pattern
selfcrossing.psp Crossing Points in a Line Segment Pattern
as.tess Convert Data To Tessellation
erosion Morphological Erosion
Fiksel The Fiksel Interaction
OrdThresh Ord's Interaction model
clarkevans.test Clark and Evans Test
humberside Humberside Data on Childhood Leukaemia and Lymphoma
nbfires Point Patterns of New Brunswick Forest Fires
applynbd Apply Function to Every Neighbourhood in a Point Pattern
smooth.ppp Spatial smoothing of observations at irregular points
rshift.splitppp Randomly Shift a List of Point Patterns
ewcdf Weighted Empirical Cumulative Distribution Function
shapley Galaxies in the Shapley Supercluster
crossdist.ppx Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
ppx Multidimensional Space-Time Point Pattern
pixellate Convert Spatial Object to Pixel Image
betacells Beta Ganglion Cells in Cat Retina
default.rmhcontrol Set Default Control Parameters for Metropolis-Hastings Algorithm.
summary.ppm Summarizing a Fitted Point Process Model
localpcf Local pair correlation function Apply Function to Image Broken Down by Factor
disc Circular Window
rpoisline Generate Poisson Random Line Process
BadGey Hybrid Geyer Point Process Model
bw.relrisk Cross Validated Bandwidth Selection for Relative Risk Estimation
pairdist Pairwise distances
affine Apply Affine Transformation
qqplot.ppm Q-Q Plot of Residuals from Fitted Point Process Model
summary.ppp Summary of a Point Pattern Dataset
plot.listof Plot a List of Things
eem Exponential Energy Marks
print.psp Print Brief Details of a Line Segment Pattern Dataset
print.owin Print Brief Details of a Spatial Window
dirichlet.weights Compute Quadrature Weights Based on Dirichlet Tessellation
Gest Nearest Neighbour Distance Function G
effectfun Compute Fitted Effect of a Spatial Covariate in a Point Process Model
connected Connected components of an image or window
rotate Rotate
infline Infinite Straight Lines
rmhmodel.ppm Interpret Fitted Model for Metropolis-Hastings Simulation.
is.subset.owin Determine Whether One Window is Contained In Another
rmhmodel Define Point Process Model for Metropolis-Hastings Simulation.
spatstat-internal Internal spatstat functions
split.ppp Divide Point Pattern into Sub-patterns
Kinhom Inhomogeneous K-function
runifpoint Generate N Uniform Random Points Test Whether An Object Is A Pixel Image
rpoispp Generate Poisson Point Pattern
matclust.estK Fit the Matern Cluster Point Process by Minimum Contrast
simdat Simulated Point Pattern
Gmulti Marked Nearest Neighbour Distance Function
is.multitype.ppp Test Whether A Point Pattern is Multitype
mincontrast Method of Minimum Contrast
ants Harkness-Isham ants' nests data
is.ppp Test Whether An Object Is A Point Pattern
thomas.estpcf Fit the Thomas Point Process by Minimum Contrast
rpoisppx Generate Poisson Point Pattern in Any Dimensions
blur Apply Gaussian Blur to a Pixel Image
duplicated.ppp Determine Duplicated Points in a Spatial Point Pattern
chop.tess Subdivide a Window or Tessellation using a Set of Lines
predict.kppm Prediction from a Fitted Cluster Point Process Model
letterR Window in Shape of Letter R
identify.ppp Identify Points in a Point Pattern
predict.ppm Prediction from a Fitted Point Process Model
border Border Region of a Window
rMaternII Simulate Matern Model II
fitted.ppm Fitted Conditional Intensity for Point Process Model
areaGain Difference of Disc Areas
box3 Three-Dimensional Box Bounding Box of a Window or Point Pattern
K3est K-function of a Three-Dimensional Point Pattern Convert Pixel Image to Matrix or Array
fasp.object Function Arrays for Spatial Patterns
nndist.psp Nearest neighbour distances between line segments
pairdist.ppx Pairwise Distances in Any Dimensions
residuals.ppm Residuals for Fitted Point Process Model Perspective Plot of Pixel Image
lpp Create Point Pattern on Linear Network
summary.splitppp Summary of a Split Point Pattern
as.rectangle Window Frame Scatterplot Matrix for Pixel Images
pairdist.psp Pairwise distances between line segments
rpoint Generate N Random Points Identify Pixelwise Maximum of Several Pixel Images
MultiHard The Multitype Hard Core Point Process Model
psp.object Class of Line Segment Patterns Extract Subset of Image
chorley Chorley-Ribble Cancer Data
concatxy Concatenate x,y Coordinate Vectors
colourtools Convert and Compare Colours in Different Formats
square Square Window
tile.areas Compute Areas of Tiles in a Tessellation
fv Create a Function Value Table
superimpose Superimpose Several Geometric Patterns
runifdisc Generate N Uniform Random Points in a Disc
lgcp.estpcf Fit a Log-Gaussian Cox Point Process by Minimum Contrast
complement.owin Take Complement of a Window
rotate.psp Rotate a Line Segment Pattern
methods.box3 Methods for Three-Dimensional Box
Kscaled Locally Scaled K-function
envelope.pp3 Simulation Envelopes of Summary Function for 3D Point Pattern
endpoints.psp Endpoints of Line Segment Pattern Divide Image Into Sub-images
hyperframe Hyper Data Frame
profilepl Profile Maximum Pseudolikelihood
pcf.fv Pair Correlation Function obtained from K Function
owin.object Class owin
diameter.owin Diameter of a Window
rshift Random Shift
fitted.slrm Fitted Probabilities for Spatial Logistic Regression Sample Quantiles of Pixel Image
Gfox Foxall's Distance Functions
is.convex Test Whether a Window is Convex
scaletointerval Rescale Data to Lie Between Specified Limits
rmhcontrol Set Control Parameters for Metropolis-Hastings Algorithm.
kstest.ppm Kolmogorov-Smirnov Test for Point Process Model
is.ppm Test Whether An Object Is A Fitted Point Process Model
perimeter Perimeter Length of Window
sharpen Data Sharpening of Point Pattern
distmap.owin Distance Map of Window
logLik.slrm Loglikelihood of Spatial Logistic Regression
pcf.fasp Pair Correlation Function obtained from array of K functions
rmh.ppm Simulate from a Fitted Point Process Model
rmhmodel.default Build Point Process Model for Metropolis-Hastings Simulation.
quadrat.test.splitppp Chi-Squared Test of CSR for Split Point Pattern Coerce Point Pattern to a Data Frame
colourmap Colour Lookup Tables
methods.lpp Methods for Point Patterns on a Linear Network
Saturated Saturated Pairwise Interaction model
dirichlet Dirichlet Tessellation of Point Pattern Print Brief Details of an Image
nnwhich.ppx Nearest Neighbours in Any Dimensions
quadratcount Quadrat counting for a point pattern
plot.colourmap Plot a Colour Map
plot.bermantest Plot Result of Berman Test
pixelquad Quadrature Scheme Based on Pixel Grid
rpoisppOnLines Generate Poisson Point Pattern on Line Segments
summary.quad Summarizing a Quadrature Scheme
adaptive.density Intensity Estimate of Point Pattern Using Tessellation
nearestsegment Find Line Segment Nearest to Each Point
nearest.raster.point Find Pixel Nearest to a Given Point
trim.rectangle Cut margins from rectangle
marks Marks of a Point Pattern
shift.owin Apply Vector Translation To Window
istat Point and Click Interface for Exploratory Analysis of Point Pattern
varblock Estimate Variance of Summary Statistic by Subdivision
with.hyperframe Evaluate an Expression in Each Row of a Hyperframe
pcf.ppp Pair Correlation Function of Point Pattern
opening Morphological Opening
clip.infline Intersect Infinite Straight Lines with a Window
spatstat.options Internal Options in Spatstat Package
eroded.areas Areas of Morphological Erosions Summarizing a Pixel Image
fv.object Data Frames of Function Values
tiles Extract List of Tiles in a Tessellation
compatible.fv Test Whether Two Function Objects Are Compatible
linnet Create a Linear Network
quadscheme Generate a Quadrature Scheme from a Point Pattern
vcov.ppm Variance-Covariance Matrix for a Fitted Point Process Model
plot.slrm Plot a Fitted Spatial Logistic Regression
rknn Theoretical Distribution of Nearest Neighbour Distance
coef.slrm Coefficients of Fitted Spatial Logistic Regression Model
runifpoint3 Generate N Uniform Random Points in Three Dimensions
pairdist.pp3 Pairwise distances in Three Dimensions
nndist.ppx Nearest Neighbour Distances in Any Dimensions
model.images Compute Images of Constructed Covariates
plot.envelope Plot a Simulation Envelope
rotate.owin Rotate a Window
msr Signed or Vector-Valued Measure
markcorr Mark Correlation Function
periodify Make Periodic Copies of a Spatial Pattern
lut Lookup Tables
rMaternI Simulate Matern Model I
japanesepines Japanese Pines Point Pattern
miplot Morishita Index Plot
plot.quad plot a Spatial Quadrature Scheme
print.ppp Print Brief Details of a Point Pattern Dataset
plot.ppm plot a Fitted Point Process Model
methods.distfun Methods for Distance Functions
rotate.ppp Rotate a Point Pattern
spruces Spruces Point Pattern
kppm Fit cluster point process model
pppmatching Create a Point Matching
rmpoispp Generate Multitype Poisson Point Pattern
solutionset Evaluate Logical Expression Involving Pixel Images and Return Region Where Expression is True
update.ppm Update a Fitted Point Process Model
multiplicity.ppp Count Multiplicity of Duplicate Points
pcf3est Pair Correlation Function of a Three-Dimensional Point Pattern
plot.tess Plot a tessellation
plot.psp plot a Spatial Line Segment Pattern
smooth.msr Smooth a Signed or Vector-Valued Measure
predict.slrm Predicted or Fitted Values from Spatial Logistic Regression
quadrats Divide Region into Quadrats
simplenet Simple Example of Linear Network
rhohat Smoothing Estimate of Covariate Transformation
simulate.kppm Simulate a Fitted Cluster Point Process Model
print.quad Print a Quadrature Scheme Integral of a Pixel Image
plot.owin Plot a Spatial Window
rescale.ppp Convert Point Pattern to Another Unit of Length
spatstat-package The Spatstat Package
plot.plotppm Plot a plotppm Object Created by plot.ppm
pppdist Distance Between Two Point Patterns
pixellate.ppp Convert Point Pattern to Pixel Image
Extract.tess Extract or Replace Subset of Tessellation
Kmulti Marked K-Function
markvario Mark Variogram
crossdist Pairwise distances
Lest L-function
rcell Simulate Baddeley-Silverman Cell Process
Emark Diagnostics for random marking
nncross Nearest Neighbours Between Two Patterns
quad.ppm Extract Quadrature Scheme Used to Fit a Point Process Model
rSSI Simulate Simple Sequential Inhibition
closing Morphological Closing
rescue.rectangle Convert Window Back To Rectangle
rmpoint Generate N Random Multitype Points
rjitter Random Perturbation of a Point Pattern
incircle Find Largest Circle Inside Window
is.empty Test Whether An Object Is Empty
ppp.object Class of Point Patterns
pixellate.owin Convert Window to Pixel Image
summary.owin Summary of a Spatial Window
plot.fasp Plot a Function Array
scanpp Read Point Pattern From Data File
plot.fv Plot Function Values Convert Pixel Image to Another Unit of Length
matchingdist Distance for a Point Pattern Matching
shift.psp Apply Vector Translation To Line Segment Pattern
rmh.default Simulate Point Process Models using the Metropolis-Hastings Algorithm.
thomas.estK Fit the Thomas Point Process by Minimum Contrast
delaunay Delaunay Triangulation of Point Pattern
raster.x Cartesian Coordinates for a Pixel Raster
unitname Name for Unit of Length
smooth.fv Apply Smoothing to Function Values
centroid.owin Centroid of a window
runiflpp Uniform Random Points on a Linear Network
crossdist.default Pairwise distances between two different sets of points
diameter.box3 Geometrical Calculations for Three-Dimensional Box
summary.listof Summary of a List of Things
shift.ppp Apply Vector Translation To Point Pattern
update.kppm Update a Fitted Cluster Point Process Model
envelope Simulation Envelopes of Summary Function
with.fv Evaluate an Expression in a Function Table
volume Volume of an Object
rpoislinetess Poisson Line Tessellation
simulate.ppm Simulate a Fitted Gibbs Point Process Model
rMosaicSet Mosaic Random Set
redwood California Redwoods Point Pattern (Ripley's Subset)
residualspaper Data and Code From JRSS Discussion Paper on Residuals
is.marked.ppm Test Whether A Point Process Model is Marked
summary.psp Summary of a Line Segment Pattern Dataset
psp Create a Line Segment Pattern
methods.boxx Methods for Multi-Dimensional Box
rlabel Random Re-Labelling of Point Pattern
localK Neighbourhood density function
ppp Create a Point Pattern
bind.fv Combine Function Value Tables
rNeymanScott Simulate Neyman-Scott Process
MultiStrauss The Multitype Strauss Point Process Model
union.quad Union of Data and Dummy Points
whist Weighted Histogram Reset Values in Subset of Image
corners Corners of a rectangle Test Whether Two Pixel Images Are Compatible
rescale Convert dataset to another unit of length Plot a Pixel Image
discretise Safely Convert Point Pattern Window to Binary Mask
as.mask.psp Convert Line Segment Pattern to Binary Pixel Mask
pixellate.psp Convert Line Segment Pattern to Pixel Image
progressreport Print Progress Reports
rlinegrid Generate grid of parallel lines with random displacement
lurking Lurking variable plot
slrm Spatial Logistic Regression
bw.stoyan Stoyan's Rule of Thumb for Bandwidth Selection
pairdist.default Pairwise distances
rmhmodel.list Define Point Process Model for Metropolis-Hastings Simulation.
bei Tropical rain forest trees
markcorrint Mark Correlation Integral
tess Create a Tessellation
discpartarea Area of Part of Disc
stieltjes Compute Integral of Function Against Cumulative Distribution
anova.ppm ANOVA for Fitted Point Process Models
rpoislpp Poisson Point Process on a Linear Network
rstrat Simulate Stratified Random Point Pattern
pcfcross.inhom Inhomogeneous Multitype Pair Correlation Function (Cross-Type)
F3est Empty Space Function of a Three-Dimensional Point Pattern
Extract.listof Extract or Replace Subset of a List of Things
distmap.ppp Distance Map of Point Pattern
rpoispp3 Generate Poisson Point Pattern in Three Dimensions
suffstat Sufficient Statistic of Point Process Model
circumradius Circumradius and Diameter of a Linear Network
clickpoly Interactively Define a Polygon
convexhull.xy Convex Hull of Points
setcov Set Covariance of a Window Apply Vector Translation To Pixel Image
vertices Vertices of a Window
as.ppp Convert Data To Class ppp
ripras Estimate window from points alone
plot.kstest Plot a Spatial Kolmogorov-Smirnov Test
convexhull Convex Hull Infinite Order Interaction Family
unique.ppp Extract Unique Points from a Spatial Point Pattern
spokes Spokes pattern of dummy points
is.multitype Test whether Object is Multitype
model.frame.ppm Extract the Environment of a Point Process Model
logLik.ppm Log Likelihood for Poisson Point Process Model
areaLoss Difference of Disc Areas
methods.pp3 Methods for three-dimensional point patterns
nndist.pp3 Nearest neighbour distances in three dimensions
model.matrix.ppm Extract Design Matrix from Point Process Model
nndist Nearest neighbour distances
kaplan.meier Kaplan-Meier Estimator using Histogram Data
marks.psp Marks of a Line Segment Pattern
nsegments Number of Line Segments in a Line Segment Pattern
plot.pp3 Plot a three-dimensional point pattern
project2segment Move Point To Nearest Line
pppmatching.object Class of Point Matchings
lengths.psp Lengths of Line Segments
reach Interaction Distance of a Point Process
relrisk Nonparametric Estimate of Spatially-Varying Relative Risk
urkiola Urkiola Woods Point Pattern
rmhstart Determine Initial State for Metropolis-Hastings Simulation.
rsyst Simulate systematic random point pattern
matclust.estpcf Fit the Matern Cluster Point Process by Minimum Contrast Using Pair Correlation
rescale.owin Convert Window to Another Unit of Length
Hardcore The Hard Core Point Process Model
Gdot Multitype Nearest Neighbour Distance Function (i-to-any)
simplify.owin Approximate a Polygon by a Simpler Polygon
Jdot Multitype J Function (i-to-any)
clarkevans Clark and Evans Aggregation Index
coef.ppm Coefficients of Fitted Point Process Model
pp3 Three Dimensional Point Pattern
rThomas Simulate Thomas Process
bdist.tiles Distance to Boundary of Window
eval.fv Evaluate Expression Involving Functions Histogram of Pixel Values in an Image
dummy.ppm Extract Dummy Points Used to Fit a Point Process Model
Fest Estimate the empty space function F
im.object Class of Images
longleaf Longleaf Pines Point Pattern
bramblecanes Hutchings' Bramble Canes data
lansing Lansing Woods Point Pattern
pcfdot.inhom Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type) Interpolate a Pixel Image
osteo Osteocyte Lacunae Data: Replicated Three-Dimensional Point Patterns
nnwhich Nearest neighbour
quad.object Class of Quadrature Schemes
is.multitype.ppm Test Whether A Point Process Model is Multitype
runifpointx Generate N Uniform Random Points in Any Dimensions
rescale.psp Convert Line Segment Pattern to Another Unit of Length
swedishpines Swedish Pines Point Pattern
nztrees New Zealand Trees Point Pattern
pcf Pair Correlation Function
rmh Simulate point patterns using the Metropolis-Hastings algorithm.
is.owin Test Whether An Object Is A Window
markconnect Mark Connection Function
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Last month downloads


Date 2011-05-19
License GPL (>= 2)
Packaged 2011-05-19 07:03:53 UTC; adrian
Repository CRAN
Date/Publication 2011-05-19 10:05:10

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