Use the GROUPMS= option to set the marker symbol. You can also
use the MARKERATTRS= option to set the marker size and symbol.
See
“Example: Using Group Options” on page 722
GROUPMS=variable
specifies a variable that determines the marker symbols for a grouped plot
independently of the GROUP= variable. When this option is specified with the
GROUP= option, the series marker symbols are selected from the GraphData1–
GraphDatan style elements based on the GROUPMS= variable instead of the
GROUP= variable.
Interactions
The GROUP= option must be specified for this option to have any
effect.
The MARKERS option must also be specified for this option to have ...
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