A polarization spectrum may also be plotted in the plane. The QUPLOT commmand requires the bin error a parameter. This plots the current polarization spectrum in the plane. The axis limits may be alted using QRANGE and URANGE or autoscaled using QAUTO and UAUTO. The BOX and NOBOX commands work as described above. The entire current polarization spectrum is plotted unless a wavelength range is specified using WRANGE. The plotting symbol style my be change with the SETSYMB command. For a list of the various plotting symbols available see the pgplot manual.
If you want the points to be joined up in wavelength order (to emphasize a loop for example) then use the commannd QUJOIN before the QUPLOT call. NOQUJOIN switches off the point drawing. Arrowheads may be employed using the QUARROW command. The arrowhead style can be altered using the ARROWSTYLE command.