The function <code>v2m</code> is used in the functions
<code>gdrisk</code>, <code>gdinteract</code> and <code>gdeco</code> for converting
a vector is from the results of the risk detector result,
interaction detector result or ecological detector to a lower
triangular matrix.

Geographical detectors for measuring spatial stratified heterogeneity,
as described in Jinfeng Wang (2010) <doi:10.1080/13658810802443457> and
Jinfeng Wang (2016) <doi:10.1016/j.ecolind.2016.02.052>. Includes the
optimal discretization of continuous data, four primary functions of
geographical detectors, comparison of size effects of spatial unit and
the visualizations of results. To use the package and to refer the
descriptions of the package, methods and case datasets, please cite
Yongze Song (2020) <doi:10.1080/15481603.2020.1760434>. The model has
been applied in factor exploration of road performance and multi-scale
spatial segmentation for network data, as described in
Yongze Song (2018) <doi:10.3390/rs10111696> and
Yongze Song (2020) <doi:10.1109/TITS.2020.3001193>, respectively.

Wenbo Lv

Geographical Detectors for Assessing Spatial Factors

Yongze Song

v2m function

<dl><dt>vec</dt>
<dd>A data.frame of risk/interaction/ecological detector
result of a strata variable</dd>
<dt>diag</dt>
<dd>TRUE/FALSE, indicating if the output matrix is a diagonal matrix.</dd></dl>

Arguments

Converts a vector to a lower triangular matrix. — v2m

<dl>

<dt>vec</dt>
<dd>A data.frame of risk/interaction/ecological detector
result of a strata variable</dd>


<dt>diag</dt>
<dd>TRUE/FALSE, indicating if the output matrix is a diagonal matrix.</dd>

</dl>

v2m: Converts a vector to a lower triangular matrix.

Description

Usage

Arguments