On Mon, Jul 11, 2011 at 03:29:17PM +0200, Jakob A. S. Meyer wrote:
> I'm doing some height distribution analyses to analyze the coverage
> and height of a SAM. I'd like to to create height distributions of the
> masked area instead of doing a lot of 'square area' distributions.
> Does anyone know to do so?
Unfortunately the statistical distributions tool does not support
masking – namely because most of the distributions are difficult to
calculate, or even define, for arbitrarily shaped areas – even though
specifically the height distribution could be calculated easily. So it
might be implemented in the future...
Meanwhile I can offer only an idiotic method: Set all data not under the
mask to a specific value a bit outside the height range. This can be
done by a pygwy script or by using Arithmetic:
m1*d1 + (1-m1)*1e-8
^^^^ the fixed value
Then just get rid of the corresponding sharp peak when you export the
distribution.
Regards,
Yeti
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