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spatstat.explore (version 3.3-2)

Exploratory Data Analysis for the 'spatstat' Family

Description

Functionality for exploratory data analysis and nonparametric analysis of spatial data, mainly spatial point patterns, in the 'spatstat' family of packages. (Excludes analysis of spatial data on a linear network, which is covered by the separate package 'spatstat.linnet'.) 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, Monte Carlo, Diggle-Cressie-Loosmore-Ford, Dao-Genton, two-stage Monte Carlo) and tests for covariate effects (Cox-Berman-Waller-Lawson, Kolmogorov-Smirnov, ANOVA) are also supported.

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Version

Install

install.packages('spatstat.explore')

Monthly Downloads

52,902

Version

3.3-2

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

August 21st, 2024

Functions in spatstat.explore (3.3-2)

Diagnostics for random marking

Extract or Replace Subset of Function Values

Multitype Nearest Neighbour Distance Function (i-to-j)

Inhomogeneous Empty Space Function

Extract Subset of Function Array

Inhomogeneous Marked F-Function

Empty Space Function of a Three-Dimensional Point Pattern

Subset of spatially sampled function

Spherical Contact Distribution Function

Estimate the Empty Space Function or its Hazard Rate

Inhomogeneous Multitype G Dot Function

Nearest Neighbour Distance Function G

Estimate the I-function

Estimate the J-function

Multitype J Function (i-to-any)

Inhomogeneous J-function

Marked J Function

Inhomogeneous Marked J-Function

Inhomogeneous Multitype J function (i-to-any)

Marked Nearest Neighbour Distance Function

Inhomogeneous Multitype G Cross Function

Multitype Nearest Neighbour Distance Function (i-to-any)

Inhomogeneous Marked G-Function

Mark-Weighted K Function

Foxall's Distance Functions

Reduced Second Moment Measure

Marked K-Function

Inhomogeneous Nearest Neighbour Function

Inhomogeneous Marked K-Function

Multitype L-function (i-to-any)

S3 Group Generic Methods for Function Arrays

Inhomogeneous Multitype L Dot Function

SpatialQuantile.ppp

Spatially Weighted Quantile of Values at Points

Inhomogeneous Multitype K Dot Function

Multitype J Function (i-to-j)

K-function of a Three-Dimensional Point Pattern

S3 Group Generic Methods for Function Tables

Multitype K Function (Cross-type)

Inhomogeneous Multitype J function (i-to-j)

Inhomogeneous L-function

Third order summary statistic

Transform a Function into its P-P or Q-Q Version

Spatial smoothing of data

Locally Scaled K-function

K-function using FFT

Inhomogeneous K-function

Sector K-function

Inhomogeneous Cross K Function

as.data.frame.envelope

Coerce Envelope to Data Frame

Multitype K Function (i-to-any)

SpatialMedian.ppp

Spatially Weighted Median of Values at Points

SpatialQuantile

Spatially Weighted Median or Quantile

Apply Smoothing to Function Values

Multitype L-function (cross-type)

Inhomogeneous Cross Type L Function

Spatial smoothing of observations at irregular points

Convert Function Value Table to Function

Window.quadrattest

Extract Window of Spatial Object

as.owin.quadrattest

Convert Data To Class owin

adaptive.density

Adaptive Estimate of Intensity of Point Pattern

Smooth a Spatially Sampled Function

Calculate four standard summary functions of a point pattern.

Smooth Interpolation of Marks as a Spatial Function

Combine Function Value Tables

Global Envelopes for Balanced Independent Two-Stage Test

Cronie and van Lieshout's Criterion for Bandwidth Selection for Kernel Density

Bandwidth Selection Based on Window Geometry

Convert Data To Tessellation

as.function.rhohat

Convert Function Table to Function

Calculate Summary Statistic for All Types in a Multitype Point Pattern

Convert Data To Class fv

bw.optim.object

Class of Optimized Bandwidths

Balanced Independent Two-Stage Monte Carlo Test

Bandwidth Selection for Diffusion Smoother by Likelihood Cross-Validation

Cross Validated Bandwidth Selection for Relative Risk Estimation

bw.CvL.adaptive

Select Adaptive Bandwidth for Kernel Estimation Using Cronie-Van Lieshout Criterion

Stoyan's Rule of Thumb for Bandwidth Selection

Test Whether Function Objects Are Compatible

Bandwidth Selection for Diffusion Smoother by Cronie-van Lieshout Rule

Spatial Distribution Test for Point Pattern or Point Process Model

Area Under ROC Curve

Kernel Smoothing of Line Segment Pattern

Generic Calculation of Cumulative Distribution Function of Distances

Scott's Rule for Bandwidth Selection for Kernel Density

densityAdaptiveKernel.ppp

Adaptive Kernel Estimate of Intensity of Point Pattern

Berman's Tests for Point Process Model

densityAdaptiveKernel.splitppp

Adaptive Kernel Estimate of Intensity for Split Point Pattern

Cross Validated Bandwidth Selection for Spatial Smoothing

density.splitppp

Kernel Smoothed Intensity of Split Point Pattern

clarkevans.test

Clark and Evans Test

Allard-Fraley Estimator of Cluster Feature

Ripley's Isotropic Edge Correction

Translation Edge Correction

Function Arrays for Spatial Patterns

Diffusion Estimate of Point Pattern Intensity

Generic Calculation of K Function and Pair Correlation Function

Abramson's Adaptive Bandwidths For Spatial Point Pattern

Apply Gaussian Blur to a Pixel Image

densityHeat.ppp

Diffusion Estimate of Point Pattern Intensity

Cross Validated Bandwidth Selection for Kernel Density

Covariance and Correlation between Images

Simulation Envelopes of Summary Function for 3D Point Pattern

Cross Validated Bandwidth Selection for Pair Correlation Function

Collapse Several Function Tables into One

Extract or Change the Plot Formula for a Function Value Table

Diggle-Cressie-Loosmore-Ford and Maximum Absolute Deviation Tests

Kernel Smoothed Intensity of Point Pattern

compatible.fasp

Test Whether Function Arrays Are Compatible

Array of Simulation Envelopes of Summary Function

Likelihood Cross Validation Bandwidth Selection for Kernel Density

Intensity Estimate of Point Pattern Using Voronoi-Dirichlet Tessellation

Progress Plot of Dao-Genton Test of Spatial Pattern

Calculate Derivative of Function Values

Fry Plot of Point Pattern

Kernel Estimate of Intensity as a Spatial Function

Global Envelopes for Dao-Genton Test

Create a Function Value Table

Significance Trace of Dao-Genton Test

Increments of a Function

Compute Integral of Function Object

Density Estimation for Circular Data

Distribution Function of Interpoint Distance

Local Multitype K Function (Cross-Type)

Mark Connection Function

Simulation Envelopes of Summary Function

Mark Correlation Function

localKcross.inhom

Inhomogeneous Multitype K Function

domain.quadrattest

Extract the Domain of any Spatial Object

Clark and Evans Aggregation Index

Make Function Tables Compatible

envelope.envelope

Recompute Envelopes

Evaluate Expression Involving Function Arrays

Hopkins-Skellam Test

Bootstrap Confidence Bands for Summary Function

spatstat.explore-deprecated

Deprecated spatstat.explore functions

Tabulate Marks in Neighbourhood of Every Point in a Point Pattern

Evaluate Expression Involving Functions

Local pair correlation function

Progress Plot of Test of Spatial Pattern

Estimate Intensity of Point Pattern Using Nearest Neighbour Distances

Nearest Neighbour Orientation Distribution

Methods for Spatially Sampled Functions

Laslett's Transform

Morisita Index Plot

plot.bermantest

Plot Result of Berman Test

Marked pair correlation function

Neighbourhood density function

Significance Trace of Cressie-Loosmore-Ford or Maximum Absolute Deviation Test

Plot Result of Scan Test

Spatial Cumulative Distribution Function

Plot a Spatially Sampled Function

Pair Correlation Function obtained from K Function

Nearest Neighbour Clutter Removal

Function Value Table

Pair Correlation Function of Point Pattern

Plot a Function Array

Nearest-Neighbour Correlation Indices of Marked Point Pattern

Plot Function Values

Dispersion Test for Spatial Point Pattern Based on Quadrat Counts

Inhomogeneous Multitype Pair Correlation Function (Type-i-To-Any-Type)

Pool Data from Several Ratio Objects

Dao-Genton Adjusted Goodness-Of-Fit Test

Abbreviations for Groups of Columns in Function Value Table

Inhomogeneous Pair Correlation Function

Mark Cross-Correlation Function

quadrat.test.splitppp

Dispersion Test of CSR for Split Point Pattern Based on Quadrat Counts

Pair Correlation Function

Smoothed Relative Density of Pairs of Covariate Values

Pair Correlation Function obtained from array of K functions

Inhomogeneous Multitype Pair Correlation Function (Cross-Type)

Multitype pair correlation function (i-to-any)

markmarkscatter

Mark-Mark Scatter Plot

Radial Cumulative Integral

pool.quadrattest

Pool Several Quadrat Tests

Estimate Variance of Summary Statistic by Subdivision

Spatially Sampled Function

Plot a Spatial Distribution Test

Nonparametric Estimate of Intensity as Function of a Covariate

Pixel Values Along a Transect

Receiver Operating Characteristic

Estimate Dimension of Central Subspace

spatstat.explore-package

The spatstat.explore Package

spatstat.explore-internal

Internal spatstat.explore functions

Stienen Diagram

Plot a Simulation Envelope

Pool Data from a List of Objects

Scatterplot Matrix for Pixel Images

Compute Predictors from Sufficient Dimension Reduction

Pool Data from Several Envelopes

segregation.test

Test of Spatial Segregation of Types

Evaluate Expression in a Spatially Sampled Function

Evaluate an Expression in a Function Table

Estimate of Spatially-Varying Relative Risk

Nonparametric Estimate of Spatially-Varying Relative Risk

Panel Plots using Colour Image or Contour Lines

Pair Correlation Function of a Three-Dimensional Point Pattern

Multitype pair correlation function (cross-type)

Heat Kernel for a Two-Dimensional Rectangle

plot.studpermutest

Plot a Studentised Permutation Test

Confidence Interval for Threshold of Numerical Predictor

Inverse-distance weighted smoothing of observations at irregular points

thresholdSelect

Select Threshold to Convert Numerical Predictor to Binary Predictor

reload.or.compute

Compute Unless Previously Saved

Contact Distribution Function using Rectangular Structuring Element

Local Multitype K Function (Dot-Type)

Likelihood Ratio Test Statistic for Scan Test

Sufficient Dimension Reduction

Inhomogeneous Neighbourhood Density Function

methods.rho2hat

Methods for Intensity Functions of Two Spatial Covariates

Methods for Intensity Functions of Spatial Covariate

Mean of a Function of Interpoint Distance

Point Pair Orientation Distribution

Plot Laslett Transform

plot.quadrattest

Display the result of a quadrat counting test.

Pool Data from Several Function Arrays

Pool Several Functions

Rotational Average of a Pixel Image

Spatial Scan Test

Estimate the Spatial Covariance Function of a Random Field

Data Sharpening of Point Pattern

Studentised Permutation Test

subspaceDistance

Distance Between Linear Spaces

Nearest Neighbour Distance Distribution Function of a Three-Dimensional Point Pattern