Relative filters
We can define tiles and gauges that display the percentage of cases within a population that fulfill a set of criteria. For example, we can define a tile that displays the percentage of cases in Australia (the population) with a case duration greater than five days (the relative filter). This can be achieved by means of the “reset counter” button in the Filter window. The reset counter button divides a list of filter criteria into two groups — the population and the relative filter — separated by a line.
To use the reset filters, first define the population. In our case, we filter cases where country is “Australia”.
![../_images/Relati002.png](../_images/Relati002.png)
Click the filter and click the reset button.
![../_images/Relati003.png](../_images/Relati003.png)
By clicking the reset button, we specify that additional filters will be relative filters.
Define the relative filter. In our case, we filter cases with a duration greater than five days.
![../_images/Relati004.png](../_images/Relati004.png)
In the criteria above, the dividing line defines the population (e.g., country = “Australia”), while the criteria below the line define the relative filter (e.g., case duration > 5 days).
If relative filters are used in tiles or gauges, they display the number of cases that fulfill the relative filter.
![../_images/Relati005.png](../_images/Relati005.png)
We can clear a relative filter by clicking the “clear counters” button.
![../_images/Relati006.png](../_images/Relati006.png)