Sat Jul 17 16:09:04 CDT 2010
2010/7/17 Robert Kern <firstname.lastname@example.org>:
> On Sat, Jul 17, 2010 at 13:11, Friedrich Romstedt
> <email@example.com> wrote:
>> 2010/7/14 Ionut Sandric <firstname.lastname@example.org>:
>> I'm afraid also Zach does not understand what you are talking about
>> ... So my first question (please bear with me) would be: What's a dem?
> Digital Elevation Map.
>> (n/a in my dictionary) And sorry for the cross-talk on the other
>> first post by you ...
>> And by slope gradient you mean second derivative?
> No, the first derivative. "Slope gradient" is a reasonably common,
> albeit somewhat redundant, idiom meaning the gradient of an elevation
Thanks Robert, that clarifies a lot.
But still I don't understand how the crosstabulation shall work. What
are the "classes"?
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