plwid: Set pen width

The PLplot Plotting Library: Programmer's Reference Manual
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### `plwid`: Set pen width

`plwid` (width);

Sets the pen width.

`width` (`PLINT`, input) The desired pen width. If ``width`` is negative or the same as the previous value no action is taken. ``width` = 0` should be interpreted as as the minimum valid pen width for the device. The interpretation of positive ``width`` values is also device dependent.

Redacted form: `plwid(width)`

This function is used in examples 1,2.

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`plw3d`: Set up window for 3-d plotting | Up | `plwind`: Specify world coordinates of viewport boundaries