REPLOT

clearing

 Use the CLEAR\NOREPLOT command to clear all graphics without emptying the
 replot buffers.

 Use the ERASEWINDOW command to erase the graphics from a window. This
 only applies to the monitor screen, as well as to bitmap and PostScript
 graphics hardcopy.

 Use the CLEAR\REPLOTONLY command to clear the replot buffers without
 clearing the graphics.

ALLWINDOWS

 Syntax: REPLOT\ALLWINDOWS

 Use the REPLOT\ALLWINDOWS command to replot all windows that have some
 data stored in the replot buffers.

NOAXES

 When the \NOAXES qualifier is used, the data will be replotted but the
 graph axes will not be drawn. 

what_is_saved

 For each data set, the window number in which it was drawn is saved, along
 with the plotting symbols, including their types, colours, connectivity,
 angles, and sizes are saved for replotting.  Also saved are: error bar
 types, line thicknesses, line types, colours, and histogram types.

text

 By default, text that was drawn with the TEXT command will also be
 replotted.  If the \-TEXT qualifier is used, any such text strings will
 not be replotted.  They will still be kept in storage, however, so the
 user may later enter REPLOT and the text strings will appear.

 If the \GRAPH qualifier is used with the TEXT command, the location of
 the replotted character string will remain fixed with respect to the
 graph's coordinate system, and the height will be scaled accordingly.
 Otherwise, the location of the replotted character string will remain
 fixed with respect to the window, and the height will not be altered.

enable/disable

 After the DISABLE REPLOT command is entered, subsequent data curves will
 not be saved in the replot buffers. Use the ENABLE REPLOT command to re-
 enable saving.  If replotting is enabled, it can be disabled for individual
 commands by use of the \NOREPLOT qualifier, for example, GRAPH\NOREPLOT.

1_example

 X=[1:20]                     ! generate some data
 WINDOW 5                     ! choose graphics window
 SET PCHAR -1                 ! set plotting symbol
 GRAPH 20*X 10*X              ! plot first curve with axes
 SET PCHAR -2                 ! change plotting symbol
 GRAPH\NOAXES X^2 (X^3)/10    ! overlay another curve on the same scale
 CLEAR\NOREPLOT               ! clear graphics but not replot buffers
 REPLOT                       ! plot all data on common scale

2_example

 WINDOW 5            ! choose window
 GRAPH X1 Y1         ! plot data+axes
 WINDOW 7            ! choose window
 GRAPH X2 Y2         ! plot data + axes
 GRAPH\NOAXES X3 Y3  ! overlay a curve
 CLEAR\NOREPLOT      ! clear graphics but not replot buffers
 REPLOT\ALL          ! replot all windows