Calculate a multiplication factor for the Y dimension to correct
for unequal plot aspect and coordinate ratios on the current graphics device.
Usage
getYmult()
Arguments
Value
The correction factor for the Y dimension.
Author
Jim Lemon
Details
getYmult retrieves the plot aspect ratio and the coordinate ratio for
the current graphics device, calculates a multiplicative factor to equalize
the X and Y dimensions of a plotted graphic object.