Control the size of the gap between the edge of the plot and the
data extrema, when using the default scale. The effect of the "GAp"
command can only be seen when you reset the default scale with "R",
"R X", or "R Y" (all with no arguments). The default gap is 0.025
which will leave a 2.5 percent margin around the edge. The size of
the gap in world coordinates, depends on whether the data are being
plotted on a logarithmic scale. Therefore, if you wish to use a
default, logarithmic scale, you should first issue the "LOg" and "GAp"
commands and then use the "Rescale" command to reset the default scale.
The default gap is calculated based on the minimum and maximum of
the data. If your data contains errors, then it is often useful to
include the error bars in the calculation. This can be done using
the "GAp Error" command which means the gap is calculated based on
the minimum and maximum values including a one sigma error bar on
the data. To revert to the original behavior to not include errors,
use "GAp NoError".
PLT> GAp 0.0 ! No gap
PLT> R X ! Use default X scale
PLT> GAp 0.05 ! Reset gap, for use with Y scale
PLT> LOg Y ! Log the Y scale
PLT> R Y ! Use default Y scale
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