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How to customize weight function based on edge attribute in Networkx shortest_path

I have created a graph representing NYC road network. I am trying to calculate a path between two nodes using Networkx shortest_path. Running it like this works fine and I'm able to visualize the ...
Alex's user avatar
  • 1
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0 answers
575 views

Weighted 2D kernel density heatmap in R

I have visual observations from repeat transect surveys (individual sighting locations based on bearing and distance to transect) that I use to create 2D kernel density heatmaps. Currently I do so ...
Anke's user avatar
  • 183
1 vote
1 answer
117 views

Created weighted sample points in ArcGIS Pro

I have a classified satellite image and I want to create a confusion matrix to check its accuracy. Instead of doing a "simple random sample", I want to do a weighted sample, where there is a ...
TBI_PRK's user avatar
  • 11
4 votes
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69 views

Making weight heatmap on recurring event in points layer using QGIS

I have a heatmap created on a points layer of deer-vehicle collision. Now, I want to weight the heatmap on the recurring of crash in the same area in different years. I would give weight 0 if a point ...
Luca's user avatar
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1 vote
1 answer
297 views

Weighting the flow accumulation raster by the slope raster in QGIS

I am trying to represent de equation of Mahoney et al. (2018) https://www.sciencedirect.com/science/article/abs/pii/S0022169418302877 Where Si is the slope in the cell i, ΣSup is is the sum of the ...
Jose Antonio's user avatar
4 votes
2 answers
202 views

Mean coordinates from several columns

I have a delimited text layer created from table with a few hundred coordinates (lat/long) in columns A and B and several hundred values associated with these coordinates in columns C to XXX. Now, I ...
Alrik's user avatar
  • 121
2 votes
0 answers
95 views

Taking weighted average over overlapping polygons in QGIS

I am trying to find source emissions values for a roads lines layer based on emissions rates tied to polygons. Here is an illustrative depiction of the two layers I am working with: Each polygon has ...
LostinSpatialAnalysis's user avatar