A context filter in Tableau is a powerful feature that allows you to isolate a specific subset of data and create a temporary data subset
When you apply a context filter to your visualization, Tableau first applies the context filter and then performs calculations and aggregations based on the filtered subset of data.
By creating a context, you can optimize the performance of your visualizations by reducing the amount of data being processed.
When a context filter is applied, Tableau performs the following steps:
1. Identifies the data that meets the context filter criteria.
2. Performs calculations and aggregations based on the filtered data.
3. Evaluates any other filters and calculations based on the context data subset.
A context filter allows you to control the order in which Tableau applies filters and calculations.
In this video, I'll explain:
1. The difference between regular filters and context filters
2. How context filters can significantly improve Tableau performance
I'll finish up by showing you a couple of the most common use cases for Context filters to drive the concept home.
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