Character Scalar (or empty vector)
Valid for: Series
When a series is drawn as a Scatter chart, each point is denoted by a
marker symbol. By default, the symbol to use is selected when the
series is created. By changing the marker
property, you can choose a particular marker symbol. In addition, if
you specify a marker using this property, the marker will be also be
displayed if the series is shown as a Line chart.
The marker is specified by assigning a character scalar, which is one of
the following APL symbols: + × * ± ² ´ ’ ‘ ª Œ † ‡ … „ It can also be a space or empty vector, in which case no marker is drawn.
Note: The actual marker is drawn is not a character, but a shape similar to
that of the corresponding APL symbol. The APL font is not used to
render the marker shape.