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SAS/GRAPH(R) 9.2: Network Visualization Workshop Help

Selecting the Data That Appears in Graphs

About Selecting Data

You select data in order to filter the view and focus on the selected data. You can select data in a data table, in a network graph, or in a statistical graph.
Selecting data in one view affects all views (unless you are using local selection mode). For example, if you select an observation in a data table, then that observation is automatically selected in all graphs associated with the project. Similarly, you can use statistical graphs to subset the data in a network graph. For example, you might select all the nodes for a particular category in a bar chart. Then, you can view only those nodes in your network graph, along with their links.
Note: When you select a portion of a statistical graph that is based on nodes, the selected nodes display in your network graphs along with all their links. Likewise, when you select a portion of a graph that is based on links, the selected links display in your network graphs along with all their nodes.[note end]
To select data, you can use the selection tool or the highlight tool.

See Also

Understanding Selection Mode
Use the Selection Tool to Select Data
Use the Highlight Tool to Select Data

Use the Selection Tool to Select Data

The selection tool is enabled by default when you open a project. If you use a different tool, then you might need to re-enable the selection tool afterward.
To enable the selection tool, select Toolsthen selectSelection.
To select data:
  • In a statistical graph, click the portion of the graph that you want to select. For example, click on a histogram bin to select all observations in the same bin.
    Hold down the CTRL key to make multiple selections.
  • In a statistical or a network graph, click and drag the cursor across the portion of the graph that you want to select. The cursor forms a rectangle as it sweeps across the nodes. Dragging a rectangle selects all observations within that rectangle. Once a rectangle is created, you can move the rectangle by placing the cursor inside the rectangle and dragging it to a new location. As the rectangle passes over observations, those observations are selected.
  • In a data table, select cells, variables, or observations. See Selecting Data in a Table .

Use the Highlight Tool to Select Data

The highlight tool is similar to the selection tool, except that the deselected nodes and links appear as gray in a network graph. (When you use the selection tool, the deselected nodes and links don’t appear at all.)
To use the highlight tool:
  1. Select Toolsthen selectHighlight.
  2. Select the data of interest. For instructions, see Use the Selection Tool to Select Data .