You create a scatterplot of Yield vs. Input, and notice three points that seem to be outliers. You can brush these points to identify the worksheet rows that correspond to them.
When you are brushing, a pane appears beside the graph. The pane lists the worksheet row numbers of the brushed points and the ID variables, so that you can find them in the worksheet. The ID variables in the example are Yield and Input.
In the worksheet, the rows that correspond to the brushed points are identified by symbols beside the row numbers.
When you brush points in one graph, Minitab automatically brushes points from the same row in all other graphs that are in brushing mode. This is true whether the graphs are in the same output tab or across several output tabs. Brushing across graphs can help you investigate relationships across many variables.
Add variables from the worksheet to the Brushing pane, so that you can view more information about brushed points. These variables are called ID variables.
You can create a column in the worksheet called an indicator variable that identifies brushed rows with a value of 1 and unbrushed rows with a value of 0 (by default). Use indicator variables as grouping variables for other operations such as regression analysis and subsetting worksheets.
For most graphs on the Graph menu, you can create another graph either by including only brushed points or by excluding all brushed points.