spatstat v1.38-0

0

Monthly downloads

0th

Percentile

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, space-time point patterns in any number of dimensions, and point patterns on a linear network. Contains about 2000 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, tessellations, and linear networks. 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, Diggle-Cressie-Loosmore-Ford, Dao-Genton) and tests for covariate effects (Cox-Berman-Waller-Lawson, Kolmogorov-Smirnov) are also supported. Parametric models can be fitted to point pattern data using the functions ppm, kppm, slrm similar to glm. Types of models include Poisson, Gibbs, Cox and cluster point processes. 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 composite likelihood methods. Fitted point process models can be simulated, automatically. Formal hypothesis tests of a fitted model are supported (likelihood ratio test, analysis of deviance, Monte Carlo tests) along with basic tools for model selection (stepwise, AIC). Tools for validating the fitted model include simulation envelopes, residuals, residual plots and Q-Q plots, leverage and influence diagnostics, partial residuals, and added variable plots.

Functions in spatstat

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

Last month downloads

Details

Nickname Wicked Plot
Date 2014-08-15
License GPL (>= 2)
URL http://www.spatstat.org
LazyData true
NeedsCompilation yes
ByteCompile true
Packaged 2014-08-15 10:58:26 UTC; adrian
Repository CRAN
Date/Publication 2014-08-15 17:39:22

Include our badge in your README

[![Rdoc](http://www.rdocumentation.org/badges/version/spatstat)](http://www.rdocumentation.org/packages/spatstat)