Assigning Data to Roles

You can subset the data in the input data set by applying an SQL WHERE clause. In the Where string box, enter your valid SQL syntax. Operands that are character strings must be enclosed in single or double quotation marks. To view this WHERE clause with the resulting graph, select the Include as footnote check box.

To run the Bar Chart task, you must assign a column to the Category variable role.

Option Name	Description
Roles
Category variable	specifies the variable that classifies the observations into distinct subsets.
Response variable	specifies a numeric response variable for the plot.
Group variable	specifies a variable that is used to group the data.
URL variable	specifies a character variable that contains URLs for web pages to be displayed when parts of the plot are selected within an HTML page.
BY variable	creates a separate graph for each BY group.
Direction
You can create either a vertical or horizontal bar chart.
Group Layout
Cluster	displays group values as separate adjacent bars that replace the single category bar. Each set of group values is centered at the midpoint tick mark for the category.
Stack	overlays group values without any clustering. Each group is represented by unique visual attributes derived from the GraphData1... GraphDatan style elements in the current style.
Statistics Note: The Statistics options are not available in these cases: You did not assign a column to the Response variable role. If you do not assign a response variable, the default statistic is frequency. You selected Stack for the group layout. In this case, the default statistic is sum.
Mean	calculates the mean of the response variable.
Sum	calculates the sum of the response variable.
Limits
Limits	specifies which limit lines to display. Limits are displayed as heavier line segments with a serif at the end that extends from each bar. Limit lines are displayed only if you select the Mean statistic.
Limit statistic	specifies the statistic for the limit lines.
Limit multiplier	specifies the number of standard units for the limit lines. By default, this value is 1.