The PLplot Plotting Library: Programmer's Reference Manual
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### `pladv`: Advance the (sub-)page

`pladv` (sub);

Advances to the next subpage if ``sub`=0`, performing a page advance if there are no remaining subpages on the current page. If subpages aren't being used, ``pladv`(0)` will always advance the page. If ``sub`>0`, PLplot switches to the specified subpage. Note that this allows you to overwrite a plot on the specified subpage; if this is not what you intended, use `pleop` followed by `plbop` to first advance the page. This routine is called automatically (with ``sub`=0`) by `plenv`, but if `plenv` is not used, `pladv` must be called after initializing PLplot but before defining the viewport.

`sub` (`PLINT`, input) Specifies the subpage number (starting from 1 in the top left corner and increasing along the rows) to which to advance. Set to zero to advance to the next subpage.

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`pl_setcontlabelparam`: Set parameters of contour labelling other than format of numerical label | Up | `plaxes`: Draw a box with axes, etc. with arbitrary origin