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spatstat.explore (version 3.2-5)

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

61,638

Version

3.2-5

License

GPL (>= 2)

Maintainer

Adrian Baddeley

Last Published

October 22nd, 2023

Functions in spatstat.explore (3.2-5)

Extract Subset of Function Array

Inhomogeneous Marked F-Function

Diagnostics for random marking

Cumulative Distribution Function From Kernel Density Estimate

Extract or Replace Subset of Function Values

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

Subset of spatially sampled function

Estimate the Empty Space Function or its Hazard Rate

Inhomogeneous Empty Space Function

Empty Space Function of a Three-Dimensional Point Pattern

Inhomogeneous Marked G-Function

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

Inhomogeneous Multitype G Dot Function

Spherical Contact Distribution Function

Nearest Neighbour Distance Function G

Inhomogeneous Nearest Neighbour Function

Marked Nearest Neighbour Distance Function

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

Inhomogeneous Marked J-Function

Foxall's Distance Functions

Inhomogeneous Multitype G Cross Function

Inhomogeneous Multitype J function (i-to-j)

Estimate the I-function

Inhomogeneous J-function

Multitype J Function (i-to-any)

Inhomogeneous Multitype J function (i-to-any)

Marked J Function

K-function of a Three-Dimensional Point Pattern

Multitype J Function (i-to-j)

Inhomogeneous K-function

Multitype K Function (i-to-any)

Estimate the J-function

Mark-Weighted K Function

Multitype K Function (Cross-type)

Inhomogeneous Marked K-Function

Locally Scaled K-function

Inhomogeneous L-function

Inhomogeneous Cross K Function

S3 Group Generic Methods for Function Arrays

Reduced Second Moment Measure

Spatial smoothing of observations at irregular points

K-function using FFT

Marked K-Function

Inhomogeneous Multitype K Dot Function

Inhomogeneous Cross Type L Function

Smooth a Spatially Sampled Function

Window.quadrattest

Extract Window of Spatial Object

Area Under ROC Curve

Multitype L-function (i-to-any)

Sector K-function

Inhomogeneous Multitype L Dot Function

adaptive.density

Adaptive Estimate of Intensity of Point Pattern

Berman's Tests for Point Process Model

Multitype L-function (cross-type)

S3 Group Generic Methods for Function Tables

Calculate four standard summary functions of a point pattern.

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

Bandwidth Selection for Diffusion Smoother by Cronie-van Lieshout Rule

as.function.rhohat

Convert Function Table to Function

as.owin.quadrattest

Convert Data To Class owin

Smooth Interpolation of Marks as a Spatial Function

Abramson's Adaptive Bandwidths

Spatial smoothing of data

Convert Data To Tessellation

Convert Data To Class fv

Third order summary statistic

Test Whether Function Objects Are Compatible

Apply Smoothing to Function Values

Combine Function Value Tables

Calculate Summary Statistic for All Types in a Multitype Point Pattern

Generic Calculation of Cumulative Distribution Function of Distances

as.data.frame.envelope

Coerce Envelope to Data Frame

Convert Function Value Table to Function

Abramson's Adaptive Bandwidths For Spatial Point Pattern

Balanced Independent Two-Stage Monte Carlo Test

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

Apply Gaussian Blur to a Pixel Image

Global Envelopes for Balanced Independent Two-Stage Test

Cross Validated Bandwidth Selection for Pair Correlation Function

Likelihood Cross Validation Bandwidth Selection for Kernel Density

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

bw.CvL.adaptive

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

Bandwidth Selection Based on Window Geometry

Collapse Several Function Tables into One

Scott's Rule for Bandwidth Selection for Kernel Density

Stoyan's Rule of Thumb for Bandwidth Selection

Cross Validated Bandwidth Selection for Spatial Smoothing

bw.optim.object

Class of Optimized Bandwidths

Density Estimation for Circular Data

compatible.fasp

Test Whether Function Arrays Are Compatible

Kernel Smoothing of Line Segment Pattern

Cross Validated Bandwidth Selection for Kernel Density

Bandwidth Selection for Diffusion Smoother by Likelihood Cross-Validation

density.splitppp

Kernel Smoothed Intensity of Split Point Pattern

Cross Validated Bandwidth Selection for Relative Risk Estimation

Kernel Smoothed Intensity of Point Pattern

Spatial Distribution Test for Point Pattern or Point Process Model

clarkevans.test

Clark and Evans Test

Generic Calculation of K Function and Pair Correlation Function

Clark and Evans Aggregation Index

Estimate Dimension of Central Subspace

Global Envelopes for Dao-Genton Test

Distribution Function of Interpoint Distance

densityAdaptiveKernel

Adaptive Kernel Estimate of Intensity of Point Pattern

Progress Plot of Dao-Genton Test of Spatial Pattern

Allard-Fraley Estimator of Cluster Feature

Diffusion Estimate of Point Pattern Intensity

Covariance and Correlation between Images

Ripley's Isotropic Edge Correction

Function Arrays for Spatial Patterns

densityHeat.ppp

Diffusion Estimate of Point Pattern Intensity

Extract or Change the Plot Formula for a Function Value Table

Kernel Estimate of Intensity as a Spatial Function

Evaluate Expression Involving Function Arrays

Evaluate Expression Involving Functions

Neighbourhood density function

Translation Edge Correction

Local Multitype K Function (Cross-Type)

Point Pair Orientation Distribution

Function Value Table

Calculate Derivative of Function Values

Abbreviations for Groups of Columns in Function Value Table

Increments of a Function

Incomplete Moment of Smoothing Kernel

Scatterplot Matrix for Pixel Images

plot.bermantest

Plot Result of Berman Test

Intensity Estimate of Point Pattern Using Voronoi-Dirichlet Tessellation

Compute Integral of Function Object

Progress Plot of Test of Spatial Pattern

Integral of Squared Kernel

Significance Trace of Dao-Genton Test

Kaplan-Meier and Reduced Sample Estimator using Histograms

Dao-Genton Adjusted Goodness-Of-Fit Test

Plot a Spatial Distribution Test

Simulation Envelopes of Summary Function for 3D Point Pattern

markmarkscatter

Mark-Mark Scatter Plot

Laslett's Transform

Inhomogeneous Neighbourhood Density Function

Pool Several Functions

pool.quadrattest

Pool Several Quadrat Tests

Tabulate Marks in Neighbourhood of Every Point in a Point Pattern

Local pair correlation function

Array of Simulation Envelopes of Summary Function

Morisita Index Plot

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

Nearest Neighbour Clutter Removal

Pair Correlation Function obtained from array of K functions

Multitype pair correlation function (cross-type)

Make Function Tables Compatible

Inhomogeneous Multitype Pair Correlation Function (Cross-Type)

Hopkins-Skellam Test

Fry Plot of Point Pattern

Pair Correlation Function obtained from K Function

Pool Data from Several Envelopes

Pool Data from Several Function Arrays

Kernel distributions and random generation

Plot Function Values

domain.quadrattest

Extract the Domain of any Spatial Object

quadrat.test.splitppp

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

Contact Distribution Function using Rectangular Structuring Element

Simulation Envelopes of Summary Function

Kaplan-Meier Estimator using Histogram Data

quantile.density

Quantiles of a Density Estimate

Scale factor for density kernel

Bootstrap Confidence Bands for Summary Function

Plot Laslett Transform

Pool Data from Several Ratio Objects

envelope.envelope

Recompute Envelopes

Reduced Sample Estimator using Histogram Data

Heat Kernel for a Two-Dimensional Rectangle

Mark Connection Function

Nearest-Neighbour Correlation Indices of Marked Point Pattern

Spatial Scan Test

Dispersion Test for Spatial Point Pattern Based on Quadrat Counts

reload.or.compute

Compute Unless Previously Saved

Nonparametric Estimate of Intensity as Function of a Covariate

Estimate of Spatially-Varying Relative Risk

Inverse-distance weighted smoothing of observations at irregular points

Estimate Intensity of Point Pattern Using Nearest Neighbour Distances

Rotational Average of a Pixel Image

spatstat.explore-deprecated

Deprecated spatstat.explore functions

spatstat.explore-internal

Internal spatstat.explore functions

Create a Function Value Table

Receiver Operating Characteristic

Estimate the Spatial Covariance Function of a Random Field

localKcross.inhom

Inhomogeneous Multitype K Function

Mark Correlation Function

Panel Plots using Colour Image or Contour Lines

Local Multitype K Function (Dot-Type)

Pair Correlation Function

Pixel Values Along a Transect

Estimate Variance of Summary Statistic by Subdivision

Mark Cross-Correlation Function

methods.rho2hat

Methods for Intensity Functions of Two Spatial Covariates

Spatial Cumulative Distribution Function

Likelihood Ratio Test Statistic for Scan Test

Methods for Intensity Functions of Spatial Covariate

Methods for Spatially Sampled Functions

Pair Correlation Function of Point Pattern

Nearest Neighbour Orientation Distribution

Pair Correlation Function of a Three-Dimensional Point Pattern

Plot a Simulation Envelope

spatstat.explore-package

The spatstat.explore Package

Mean of a Function of Interpoint Distance

Multitype pair correlation function (i-to-any)

plot.quadrattest

Display the result of a quadrat counting test.

Plot a Function Array

Spatially Sampled Function

Pool Data from a List of Objects

Sufficient Dimension Reduction

Plot Result of Scan Test

Compute Predictors from Sufficient Dimension Reduction

Radial Cumulative Integral

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

Inhomogeneous Pair Correlation Function

Marked pair correlation function

Studentised Permutation Test

subspaceDistance

Distance Between Linear Spaces

Plot a Spatially Sampled Function

plot.studpermutest

Plot a Studentised Permutation Test

Nonparametric Estimate of Spatially-Varying Relative Risk

segregation.test

Test of Spatial Segregation of Types

Data Sharpening of Point Pattern

Confidence Interval for Threshold of Numerical Predictor

Smoothed Relative Density of Pairs of Covariate Values

thresholdSelect

Select Threshold to Convert Numerical Predictor to Binary Predictor

Compute Integral of Function Against Cumulative Distribution

Stienen Diagram

Evaluate an Expression in a Function Table

Evaluate Expression in a Spatially Sampled Function