Clear or reset various PONGO plotting attributes. Several or all
of these plotting attributes can be specified on the command line.
SCREEN = _LOGICAL (Read)
If TRUE, the plotting surface will be cleared.
DATA = _LOGICAL (Read)
If TRUE, the data arrays will be cleared. This can be useful
if there is still unwanted data left in some of the data
areas: for example, the READF command does not
clear columns that it does not read in. Even if the
appropriate READF parameters have been set to 0 to inhibit
reading error columns from the second file, the values from
the first file will remain in the data areas. This behaviour is
designed to allow columns to be read from separate files and
combined in one plot. However, it can cause the automatic axis
limit finding routines to appear to fail because of data left
in error columns. This most commonly occurs when a file not
containing error values is read immediately after one that
LIMITS = _LOGICAL (Read)
If TRUE, the data limits will be cleared and the data
re-examined in order to determine the axis limits. This
command is often necessary if a complicated function has been
performed on the data using the CCMATH command, because the
current PONGO parameters may no longer be applicable to the
LABLST = _LOGICAL (Read)
If TRUE, the internal label list generated by the CURSE
command will be cleared.
AGI = _LOGICAL (Read)
If TRUE, the AGI database is cleared for the current device.
ERSCALE = _REAL (Read)
The scale factor by which the errors are to be multiplied.
(Can only be set when LIMITS are cleared.)
The value of the global parameter PONGO_ERSCALE is used. If
PONGO_ERSCALE is not defined, the default value 1.0 is used.