Which price axis a series maps to. 'right' (default) and 'left' each draw an axis and autoscale independently; '' is a hidden overlay scale (no axis, its own autoscale) used to pin a volume histogram inside the price pane.
Which price axis a series maps to. 'right' (default) and 'left' each draw an axis and autoscale independently; '' is a hidden overlay scale (no axis, its own autoscale) used to pin a volume histogram inside the price pane.