Using parameters in dashboards
Parameters are dynamic "placeholders" that can help to control the dashboard appearance by storing information to help drive the flexibility of the dashboard.
We can use parameters to make our visualizations more accurate by using them to control which data is to be displayed and which is to be hidden in response to user input. In this recipe, we will look at using parameters in order to drive the display and enhancing the accuracy of the presentation by controlling the inclusion of
NULL values in the dashboard.
NULL values are present in the data, then this might cause a misleading representation of the data. On the other hand,
NULL values might be useful because they could tell us about the quality of the data ...
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