Applying filters to change the sampling of data displayed in visualizations
You can apply different types of filters to change your view of the data in visualizations.
Filtering API events in your visualizations
In a dashboard, the visualizations depict information that relates to all the API events that occur for the selected Catalog in the organization, and which are scoped to a specified time range. You can further filter the API events by using a free text search or a Lucene search query.
Procedure
To filter the API events, complete the following steps:
Specifying a time period and auto-refresh rate for the data in your visualizations
You can change the time period to which your visualization data relates by using the Time Picker. The defined time filter will be applied to all relevant visualizations in the dashboard.
Procedure
To apply a time filter and auto-refresh rate, complete the following steps:
Drilling down into data in your time-based visualizations
On time-based visualizations that display histograms, you can zoom in on a specific time
range on the chart. This is equivalent to applying a filter for an absolute
time period.
Procedure
To zoom in on your data, complete one of the following steps:
![[V5.0.7 or later]](../buildfiles/icon_v507.jpg)
Applying a filter by using the legend in a visualization
For any chart that includes a legend, you can use the legend labels to apply inclusion (or positive) filters to that chart and other relevant charts on the dashboard. When you use the legend in this way to specify inclusion, data is displayed only for the selected item. You can alternatively apply exclusion (or negative) filters to exclude the data for a selected item. You can also apply other filter conditions in addition to inclusion and exclusion filters.
Procedure
To apply a filter from the legend of a chart such as an area chart, line chart, pie chart, or vertical bar chart, complete the following steps:
![[V5.0.6 and earlier]](../buildfiles/icon_v506_earlier.jpg)
Applying a filter by using the legend in a visualization
For any chart that includes a legend, you can use the legend symbols to apply inclusion filters to that chart and other relevant charts on the dashboard. When you use the legend in this way to specify inclusion, data is displayed only for the selected item. You can further apply other filter conditions.
Procedure
To apply a filter from the legend of a chart, complete the following steps: