Set plot orientation parameter which is multiplied by 90° to obtain the angle of rotation. Note, arbitrary rotation parameters such as 0.2 (corresponding to 18°) are possible, but the usual values for the rotation parameter are 0., 1., 2., and 3. corresponding to 0° (landscape mode), 90° (portrait mode), 180° (seascape mode), and 270° (upside-down mode). If plsdiori is not called the default value of rot is 0.

N.B. aspect ratio is unaffected by calls to plsdiori. So you will probably want to change the aspect ratio to a value suitable for the plot orientation using a call to plsdidev or the command-line options -a or -freeaspect . For more documentation of those options see the section called “Command Line Arguments”. Such command-line options can be set internally using plsetopt or set directly using the command line and parsed using a call to plparseopts.

Redacted form: plsdiori(rot)

This function is not used in any examples.