Syntax: qalplot (FITS file) (line file) z=redshift [dv=velocity] [ps=(PostScript file)] [-land] [-vt100] [-norm] [-hist] [nh= nv= ] [-all] [skip= ] [ mpc= ] [ dch= ] [ svp=xmin:xmax:ymin:ymax ] [ux=xmin:xmax] [uy=ymin:ymax] Options: z= : absorption redshift. dv= : velocity radius. nh=,nv= : number of horizontal and vertical windows. -all : plot all windows, not just first page. skip=n : skip first "n" windows. mpc= : y minimum as percentage of high value. dch= : default character height ( 3.0 ). -norm : normalized intensity (draw line at y=1.0). -hist : histogram mode. svp= : PGSVP (set viewport in units of 0.0 to 1.0). ux= : Set horizontal range all plots. uy= : Set vertical for all plots. ps= : Write plot to PostScript file (instead of pgdisp). -land : Use landscape for PostScript plot file. For "line file", copy $MAKEE_DIR/qso_absorption to your own file. Edit your file to include only the lines of interest.