[DISPLAY\]STATISTIC [DataCube [FirstPlane [LastPlane]]
[/EDGE Margin] /NOISE VarNoise
Return the rms noise in the specified VarNoise SIC real scalar variable.
The rms noise is also available in variable STAT_NOISE, and if the image
is the CLEAN image, in CLEAN%NOISE as well for further convenience and
use in scripts.