Working with Data Brushing :: SAS® Visual Analytics 7.4: User's Guide

Overview of Data Brushing

Data brushing is a feature of some visualizations that enables you to select data values in one visualization and highlight the corresponding data values in all of your other visualizations.

For example, you might have a bar chart and a scatter plot in your exploration. If you enable data brushing, and you select a bar in the bar chart, then the markers in the scatter plot that correspond to the selected value in the bar are highlighted.

Data Brushing Example

The following visualization types support data brushing:

Bar chart
Line chart
Scatter plot
Bubble plot (if the Group role is assigned)
Network diagram
Histogram
Heat map (if categories are assigned to both axes)
Geo map
Treemap
Word cloud

For histograms and for bar charts of frequency that are not grouped or latticed, data brushing can indicate the portion of a bar that corresponds to the brushed data. The bar is highlighted and then partially shaded to indicate the corresponding portion. The value for the shaded portion of the bar is included in the data tip for the bar.

In Data Brushing with Partial Shading , a selection in a bubble plot highlights a portion of the corresponding bar in a bar chart.

Data Brushing with Partial Shading

Data Brushing Example Showing Partial Shading

For bar charts that have a measure assigned or that are grouped or latticed, the entire bar is highlighted.

Enable Data Brushing

To enable data brushing, select View

Data Brushing.

Select Values in a Visualization

You can select values in your visualization by using any of the following methods:

Click the data values. This is most useful for bar charts, histograms, and treemaps. To select multiple data values, hold down the Ctrl key while clicking each data value.
Click and drag to select data values in a rectangular region. This is most useful for scatter plots and heat maps.
Select data values in the details table for the visualization. Press Shift+click to select multiple adjacent values, or press Ctrl+click to select or deselect individual values.