F1=Prime data file entered to start a new plot.
F2=Additional data file entered as many as desired to be overlaid.
F3=Plot parameter/setup file to save the current plot setup.
F4=Auxiliary layout file to overlay and save the layout if resorted.
GT=Graph title (any alphanumeric information, maximum 75 characters).
L1=X-axis label of the 1st graph band (maximum 75 characters).
L2=Y-axis label of the 1st graph band (maximum 75 characters).
L3=X-axis label of the 2nd graph band (maximum 75 characters).
L4=Y-axis label of the 2nd graph band (maximum 75 characters).
GO=1st graph band origin(x,y) in inches from the lower-left corner of screen.
BO=2nd graph band offsets(x,y) in inches from the 1st graph band origin.
SF=Overall graph scale factors (x,y) for screen plotting only.
SE=Screen erase flag (if YES, screen is erased before plotting).
MQ=Multi-quadrant plot flag (NO for 1-quadrant; YES for multi-quadrant plot).
NS=Error bar length in number of user-entered sigmas (NS=0: skip error bars).
C1=Axis color number/pen code for the 1st graph band.
C2=Axis color number/pen code for the 2nd graph band.
T1=1st graph band x-axis setup (axis-type,divisions,digits,axis-pattern).
T2=1st graph band y-axis setup (axis-type,divisions,digits,axis-pattern).
T3=2nd graph band x-axis setup (axis-type,divisions,digits,axis-pattern).
T4=2nd graph band y-axis setup (axis-type,divisions,digits,axis-pattern).
X1=1st graph band x-axis setup (axis-length, 1st-major-tickmark-offset).
X2=1st graph band y-axis setup (axis-length, 1st-major-tickmark-offset).
X3=2nd graph band x-axis setup (axis-length, 1st-major-tickmark-offset).
X4=2nd graph band y-axis setup (axis-length, 1st-major-tickmark-offset).
S1=1st graph band x-axis setup (axis scale units on major tickmarks).
S2=1st graph band y-axis setup (axis scale units on major tickmarks).
S3=2nd graph band x-axis setup (axis scale units on major tickmarks).
S4=2nd graph band y-axis setup (axis scale units on major tickmarks).
PN=Pen code for drawing the set of data (PN=0: skip drawing the set).
SM=Marker symbol code for drawing the set of data (SM<0: skip the lines).
LI=Line type code for drawing the set of data (LI<0: spline-smooth on).
DN=Point plotting-density/skipping code (e.g. DN=2: plot every other point).
BC=Band code signifying on which graph band the set of data is to be plotted.
BL=Bold-line or linewidth code in number of the default linewidth.
SS=Size of marker symbols in inches if marker symbols are to be plotted).
XO=X-offset in inches from the default position for drawing the set of data.
YO=Y-offset in inches from the default position for drawing the set of data.
XS=Re-scale factor for all x-coordinates of the set of data.
YS=Re-scale factor for all y-coordinates of the set of data.
RL=Plot reference line in current y-axis units for stick/bar/area-fill plot.
PM=Data set plotting mode (other valid mode keywords: FILL, LOOP, STICK, BAR).
ID=Data set identification label for the set of data being displayed.
LB=Data set ID drawing flag (LB=0: skip; LB=1: draw; LB=2: box them as well).
LM=Data set ID prefix-marker drawing flag (LM=0: skip them; LM=1: draw them).
LP=Data set ID position (x,y) of the lower-left corner of label box.
NO=Active data set number.
PT=Number of data points in the set of data being displayed.
XL=Minimum value of x-coordinates in the set of data being displayed.
XH=Maximum value of x-coordinates in the set of data being displayed.
YL=Minimum value of y-coordinates in the set of data being displayed.
YH=Maximum value of y-coordinates in the set of data being displayed.