specifies the appearance of the legend for the scatter plot. options can be one or more
of the following:
ACROSS=n
specifies the number of columns in the legend.
AUTOITEMSIZE
specifies that all markers in the legend are sized in proportion to the font size
used for the legend labels.
The following figures show a legend with fairly large labels. In the first figure,
the markers are small compared to the labels. The second figure uses
AUTOITEMSIZE to size the markers in proportion to the labels.
Default Marker SizeAUTOITEMSIZE Used in the Statement
DOWN=n
specifies the number of rows in the legend. ...
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