Specifies the appearance of the labels of those constant lines that belong to the argument axis.
A constant line label displays the value of a constant line.
Aligns constant line labels in the horizontal direction.
Specifies the position of constant line labels on the chart plot.
By default, constant line labels are displayed inside the chart plot near the constant lines they belong to. To place the labels outside the chart plot, set the position option to "outside".
Aligns constant line labels in the vertical direction.
Makes constant line labels visible.