dodgr | Distances on Directed Graphs in R
kandi X-RAY | dodgr Summary
kandi X-RAY | dodgr Summary
dodgr is an R package for efficient calculation of many-to-many pairwise distances on dual-weighted directed graphs, for aggregation of flows throughout networks, and for highly realistic routing through street networks (time-based routing considering incline, turn-angles, surface quality, everything). Note that most dodgr algorithms implement parallel computation with the RcppParallel library, and by default use the maximal number of available cores or threads. If you do not wish dodgrto use all available threads, please reduce the number manually by first specifying a value via.
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QUESTION
I have an sf dataframe
object with a series of points representing the shape of a bus route. I would like to turn this object into a routable graph so I can estimate the time it takes to traverse from point c
to t
.
Here is what I've tried using the dodgr
package but I am not sure what I'm doing wrong here:
ANSWER
Answered 2019-Sep-07 at 16:49I think you can solve it by transforming your data into an igraph object and use the functionalities in the igraph library. You need to establish the Edges and Vertex as well as weight values. In igraph an Edge is a link representing a connection among two nodes (Source and Target). In this case, a link is a "street" and the points are the nodes.
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