[pstricks] Plotting data: where are features documented?

[Denis Bitouzé]

Hello,

I'm planning to give a course for Ph D students about plotting data
with PSTricks (or, maybe, with PGFPlots) and I'd like to know if
features like \pstScalePoints, Dx, dx, xAxis=false are
somewhere documented?

I know I can see examples in pstricks-add-doc or in pst-plot-doc but
I'd like a centralized and exhaustive document. Do you if there exists?

Thanks.

Regards.
-- 
Denis