36. Heatmaps

Video Tutorial

In this tutorial

Via GeoDelta Labs on Youtube.

Heatmaps show the concentration of many points in close proximity.

You can use this tutorial with your own point dataset or NYC Crashes as an example. NYC Crashes has 2M+ rows, so I recommend filtering it in the Socrata portal or in R before importing to QGIS. This filtered view has all crashes in October 2023.

After adding your own basemap and bringing in the CSV as a spatial dataset, you can start at 9:20 in the video.