plsdiplt: Set parameters that define current plot-space window 

DESCRIPTION:

    Set relative minima and maxima that define the current plot-space
    window.  If plsdiplt is not called the default values of xmin, ymin,
    xmax, and ymax are 0., 0., 1., and 1. 

SYNOPSIS:

plsdiplt(xmin, ymin, xmax, ymax)

ARGUMENTS:

    xmin (PLFLT, input) :    Relative minimum in x. 

    ymin (PLFLT, input) :    Relative minimum in y. 

    xmax (PLFLT, input) :    Relative maximum in x. 

    ymax (PLFLT, input) :    Relative maximum in y.