YAXISON

Syntax: SET YAXISON n
GET YAXISON { n }
Default: YAXISON = 1

YAXISON controls whether or not to draw the y-axis.

YAXISON = 0 → do not draw the axis

YAXISON ≠ 0 → draw the axis

If GRAPHBOX is non-zero, the left side of the graph box will be drawn even if YAXISON is zero.