estimate_centrality_threshold

Providing distance thresholds to this
function generally provides considerably speed gains, and results in
approximations of centrality. This function enables the determination of
values of 'dist_threshold' corresponding to specific degrees of accuracy.

Distances on dual-weighted directed graphs using
priority-queue shortest paths (Padgham (2019) <doi:10.32866/6945>).
Weighted directed graphs have weights from A to B which may differ
from those from B to A. Dual-weighted directed graphs have two sets
of such weights. A canonical example is a street network to be used
for routing in which routes are calculated by weighting distances
according to the type of way and mode of transport, yet lengths of
routes must be calculated from direct distances.

Mark Padgham

dodgr

Distances on Directed Graphs

Andreas Petutschnig

David Cooley

Robin Lovelace

Andrew Smith

Malcolm Morgan

Andrea Gilardi

Shane Saunders

Stanislaw Adaszewski

estimate_centrality_threshold function

<dl><dt>graph</dt>
<dd>'data.frame' or equivalent object representing the network
graph (see Details)</dd>
<dt>tolerance</dt>
<dd>Desired maximal degree of inaccuracy in centrality estimates<ul>
<li>values will be accurate to within this amount, subject to a constant
scaling factor. Note that threshold values increase non-linearly with
decreasing values of 'tolerance'</li>
</ul></dd></dl>

Arguments

Estimate a value for the 'dist_threshold' parameter of the
dodgr_centrality function. — estimate_centrality_threshold

<dl>

<dt>graph</dt>
<dd>'data.frame' or equivalent object representing the network
graph (see Details)</dd>


<dt>tolerance</dt>
<dd>Desired maximal degree of inaccuracy in centrality estimates<ul>
<li>values will be accurate to within this amount, subject to a constant
scaling factor. Note that threshold values increase non-linearly with
decreasing values of 'tolerance'</li>
</ul></dd>

</dl>

Estimate a value for the 'dist_threshold' parameter of the
dodgr_centrality function.

estimate_centrality_threshold: Estimate a value for the 'dist_threshold' parameter of the dodgr_centrality function.

Description

Usage

Value

Arguments

See Also