Measurement Level (XGRAPH command)

The chart expression allows the user to specify a measurement level for BY variables. If measurement level is not specified, the following occurs:

• In a chart of BAR elements, xvars and zvars are treated as categorical.
• In a chart of HISTOBAR elements, xvars is treated as scale. zvars is treated as categorical, because the COORDINATE subcommand and SPLIT keyword are always used.
• In charts of POINT elements, the measurement level is obtained from the IBM® SPSS® Statistics data dictionary for each variable. If no measurement levels have been defined, numeric variables are treated as scale and string variables are treated as categorical.

[c]. Specifies that the variable is treated as a categorical variable.

[s]. Specifies that the variable is treated as a scale variable.