nbdists

Given a list of spatial neighbour links (a neighbours list of object type
 <code>nb</code>), the function returns the Euclidean distances along the links
 in a list of the same form as the neighbours list. If longlat = TRUE, Great
 Circle distances are used.

spatial

A collection of functions to create spatial weights matrix
objects from polygon 'contiguities', from point patterns by distance and
tessellations, for summarizing these objects, and for permitting their
use in spatial data analysis, including regional aggregation by minimum
spanning tree; a collection of tests for spatial 'autocorrelation',
including global 'Morans I' and 'Gearys C' proposed by 'Cliff' and 'Ord'
(1973, ISBN: 0850860369) and (1981, ISBN: 0850860814), 'Hubert/Mantel'
general cross product statistic, Empirical Bayes estimates and
'Assunção/Reis' (1999) <doi:10.1002/(SICI)1097-0258(19990830)18:16%3C2147::AID-SIM179%3E3.0.CO;2-I> Index, 'Getis/Ord' G ('Getis' and 'Ord' 1992)
<doi:10.1111/j.1538-4632.1992.tb00261.x> and multicoloured
join count statistics, 'APLE' ('Li 'et al.' )
<doi:10.1111/j.1538-4632.2007.00708.x>, local 'Moran's I', 'Gearys C'
('Anselin' 1995) <doi:10.1111/j.1538-4632.1995.tb00338.x> and
'Getis/Ord' G ('Ord' and 'Getis' 1995)
<doi:10.1111/j.1538-4632.1995.tb00912.x>,
'saddlepoint' approximations ('Tiefelsdorf' 2002)
<doi:10.1111/j.1538-4632.2002.tb01084.x> and exact tests
for global and local 'Moran's I' ('Bivand et al.' 2009)
<doi:10.1016/j.csda.2008.07.021> and 'LOSH' local indicators
of spatial heteroscedasticity ('Ord' and 'Getis')
<doi:10.1007/s00168-011-0492-y>. The implementation of most of
these measures is described in 'Bivand' and 'Wong' (2018)
<doi:10.1007/s11749-018-0599-x>, with further extensions in 'Bivand' (2022)
<doi:10.1111/gean.12319>. 'Lagrange' multiplier tests for spatial dependence
in linear models are provided ('Anselin et al'. 1996)
<doi:10.1016/0166-0462(95)02111-6>, as are 'Rao' score tests for hypothesised
spatial 'Durbin' models based on linear models ('Koley' and 'Bera' 2023)
<doi:10.1080/17421772.2023.2256810>. A local indicators for categorical data
(LICD) implementation based on 'Carrer et al.' (2021)
<doi:10.1016/j.jas.2020.105306> and 'Bivand et al.' (2017)
<doi:10.1016/j.spasta.2017.03.003> was added in 1.3-7.
From 'spdep' and 'spatialreg' versions >= 1.2-1, the model fitting functions
previously present in this package are defunct in 'spdep' and may be found
in 'spatialreg'.

Roger Bivand

spdep

Spatial Dependence: Weighting Schemes, Statistics

Micah Altman

Luc Anselin

Renato Assunção

Anil Bera

Olaf Berke

F. Guillaume Blanchet

Marilia Carvalho

Bjarke Christensen

Yongwan Chun

Carsten Dormann

Stéphane Dray

Dewey Dunnington

Virgilio Gómez-Rubio

Malabika Koley

Tomasz Kossowski

Elias Krainski

Pierre Legendre

Nicholas Lewin-Koh

Angela Li

Giovanni Millo

Werner Mueller

Hisaji Ono

Josiah Parry

Pedro Peres-Neto

Michał Pietrzak

Gianfranco Piras

Markus Reder

Jeff Sauer

Michael Tiefelsdorf

René Westerholt

Justyna Wilk

Levi Wolf

Danlin Yu

nbdists function

<dl> <dt>nb</dt>
<dd>an object of class <code>nb</code></dd> <dt>coords</dt>
<dd>matrix of point coordinates, an object inheriting from SpatialPoints or an <code>"sf"</code> or <code>"sfc"</code> object; if the <code>"sf"</code> or <code>"sfc"</code> object geometries are in geographical coordinates (<code>sf::st_is_longlat(x) == TRUE</code> and <code>sf::sf_use_s2() == TRUE</code>), s2 will be used to find distances <a href="https://github.com/r-spatial/s2/issues/125">https://github.com/r-spatial/s2/issues/125</a></dd> <dt>longlat</dt>
<dd>TRUE if point coordinates are longitude-latitude decimal degrees, in which case distances are measured in kilometers; if coords is a SpatialPoints object, the value is taken from the object itself</dd></dl>

Arguments

Roger Bivand <a href="/link/Roger.Bivand%40nhh.no?package=spdep&version=1.3-8" data-mini-rdoc="spdep::Roger.Bivand@nhh.no">Roger.Bivand@nhh.no</a>

Author

Spatial link distance measures — nbdists

<dl>

 <dt>nb</dt>
<dd>an object of class <code>nb</code></dd>

 <dt>coords</dt>
<dd>matrix of point coordinates, an object inheriting from SpatialPoints or an <code>"sf"</code> or <code>"sfc"</code> object; if the <code>"sf"</code> or <code>"sfc"</code> object geometries are in geographical coordinates (<code>sf::st_is_longlat(x) == TRUE</code> and <code>sf::sf_use_s2() == TRUE</code>), s2 will be used to find distances <a href='https://github.com/r-spatial/s2/issues/125'>https://github.com/r-spatial/s2/issues/125</a></dd>

 <dt>longlat</dt>
<dd>TRUE if point coordinates are longitude-latitude decimal degrees, in which case distances are measured in kilometers; if coords is a SpatialPoints object, the value is taken from the object itself</dd>

</dl>

Roger Bivand <a href='mailto:Roger.Bivand@nhh.no'>Roger.Bivand@nhh.no</a>

Spatial link distance measures

nbdists: Spatial link distance measures

Description

Usage

Value

Arguments

Author

See Also

Examples