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<div class="moz-cite-prefix">On 6/22/17 1:39 PM, Markus Neteler
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALFmHhuu9UYeHiREgKsZaw1mWMUjeVmuYxFKEGoKggPSzMo1=g@mail.gmail.com">
<p dir="ltr">On Jun 22, 2017 11:43 AM, "Markus Metz" <br>
> > On 21/06/17 23:12, Markus Neteler wrote:<br>
> >></p>
<p dir="ltr">....<br>
> >> Checking further, I found a personal wish email to
MartinL from 2009.<br>
> >> AFAIR I was dealing with LiDAR point clouds of the
Trentino back<br>
> >> then... and needed to know the average distance
between points<br>
><br>
> Did you really want to average distance to all other points
or rather the average distance to the nearest other point?</p>
<p dir="ltr">Indeed the latter...</p>
<p dir="ltr">> >> in<br>
> >> order to optimize raster binning (meanwhile I
would probably use<br>
> >> <a href="http://r.in.xyz" moz-do-not-send="true">r.in.xyz</a>
and count the points falling into each raster cell, then<br>
> >> r.univar on the resulting map).<br>
> >><br>
> >> However, to have the possibility to compute
statistics on the<br>
> >> distances between vector (point) geometries makes
sense to me in a<br>
> >> GIS.<br>
> ><br>
> ><br>
> > Would this possibly be better done within v.distance ?
Something like a -s flag meaning "Output summary statistics of
desired information" which would take the info chosen in
upload=, and possibly the -a flag and calculated summary
statistics ?<br>
><br>
> v.distance uses the distance to the nearest feature while
v.univar uses all distances to all other features. While
v.distance makes sense to me, v.univar's distances to all other
features do not make sense to me. </p>
</blockquote>
Both could be useful. For example, when looking at dispersal
distances to seed sources in a landscape you may be interested in
the nearest neighbors, but also all available seed sources in a
landscape.<br>
<blockquote type="cite"
cite="mid:CALFmHhuu9UYeHiREgKsZaw1mWMUjeVmuYxFKEGoKggPSzMo1=g@mail.gmail.com">
<p dir="ltr">I agree.</p>
<p dir="ltr">markusN<br>
</p>
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