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Buffer Functions and Spatial Joins – datavis.blog
source link: https://datavis.blog/2022/02/08/buffer-functions-and-spatial-joins/
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Buffer Functions and Spatial Joins
When you have two sources of spatial data – such as Airbnb locations and EV charging point locations – and you want to analyse the spatial relationships between them, such as determine how many Airbnbs are within a certain distance from an EV charging point, Tableau’s spatial functions can be extremely useful.
In this video, I walk through the above scenario and show:
- How to connect to multiple sources of data
- How to perform high-level visual analysis using map layers
- How to create a spatial join between two data sources
- How to use MAKEPOINT(), BUFFER() and DISTANCE() spatial functions
- How to make your spatial analysis dynamic with the help of parameters
I hope this was useful. If you have any questions, feel free to add them below the video on YouTube or contact me on LinkedIn.
Thanks!
Marc
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