nb2lines

listw2lines

df2sn

Use vector files for import and export of weights, storing spatial entity coordinates in the arcs, and the entity indices in the data frame.

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

nb2lines function

<dl> <dt>nb</dt>
<dd>a neighbour object of class <code>nb</code></dd> <dt>wts</dt>
<dd>list of general weights corresponding to neighbours</dd> <dt>coords</dt>
<dd>matrix of region point coordinates, a <code>Spatial</code> object (points or polygons), or an <code>sfc</code> object (points or polygons)</dd> <dt>proj4string</dt>
<dd>default NULL; if <code>coords</code> is a Spatial or sf object, this value will be used, otherwise the value will be converted appropriately</dd> <dt>as_sf</dt>
<dd>output object in <code>Spatial</code> or <code>sf</code> format, default FALSE, set to TRUE if coords is an <code>sfc</code> object and FALSE if a <code>Spatial</code> object</dd> <dt>listw</dt>
<dd>a <code>listw</code> object of spatial weights</dd> <dt>df</dt>
<dd>a data frame read from a shapefile, derived from the output of <code>nb2lines</code></dd> <dt>i</dt>
<dd>character name of column in df with from entity index</dd> <dt>i_ID</dt>
<dd>character name of column in df with from entity region ID</dd> <dt>j</dt>
<dd>character name of column in df with to entity index</dd> <dt>wt</dt>
<dd>character name of column in df with weights</dd></dl>

Arguments

Roger Bivand <a href="/link/Roger.Bivand%40nhh.no?package=spdep&version=1.3-10" data-mini-rdoc="spdep::Roger.Bivand@nhh.no">Roger.Bivand@nhh.no</a>

Author

Use vector files for import and export of weights — nb2lines

<dl>

 <dt>nb</dt>
<dd>a neighbour object of class <code>nb</code></dd>

 <dt>wts</dt>
<dd>list of general weights corresponding to neighbours</dd>

 <dt>coords</dt>
<dd>matrix of region point coordinates, a <code>Spatial</code> object (points or polygons), or an <code>sfc</code> object (points or polygons)</dd>

 <dt>proj4string</dt>
<dd>default NULL; if <code>coords</code> is a Spatial or sf object, this value will be used, otherwise the value will be converted appropriately</dd>

 <dt>as_sf</dt>
<dd>output object in <code>Spatial</code> or <code>sf</code> format, default FALSE, set to TRUE if coords is an <code>sfc</code> object and FALSE if a <code>Spatial</code> object</dd>

 <dt>listw</dt>
<dd>a <code>listw</code> object of spatial weights</dd>

 <dt>df</dt>
<dd>a data frame read from a shapefile, derived from the output of <code>nb2lines</code></dd>

 <dt>i</dt>
<dd>character name of column in df with from entity index</dd>

 <dt>i_ID</dt>
<dd>character name of column in df with from entity region ID</dd>

 <dt>j</dt>
<dd>character name of column in df with to entity index</dd>

 <dt>wt</dt>
<dd>character name of column in df with weights</dd>

</dl>

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

Use vector files for import and export of weights

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nb2lines: Use vector files for import and export of weights

Description

Usage

Value

Arguments

Author

Details

See Also

Examples