Hi Ana,

Based on a previous post I found, it looks like the package SDMTools could
do what you want via the PatchStat function:

http://cran.r-project.org/web/packages/SDMTools/index.html

As to the question put regarding why use R for GIS work, I can give my
perspective as someone who has switched to using R for nearly all my
spatial analyses.  The reason is that my projects involve a mix of spatial
and non-spatial analysis, and the ability to use one program and one set of
code to do all the work is enormously helpful in terms of time spent,
keeping track of workflow, etc. Add to that R's ability to produce high
quality graphics for presentation, which in my experience is much better
than what ArcGIS allows, even if it can take a fair bit of work to produce
them.  There are some things that GIS packages seem to do better,
particularly in the speed department (e.g. replacing a raster value with a
a value from an attribute table), but to me it seems far better to do all
my work in one place than to scatter it amongst several programs.

My two cents....

Cheers, Lyndon



On Tue, Jan 31, 2012 at 12:36 PM, Jakub Szymkowiak <qbaszym@tlen.pl> wrote:

> Hi,
>
> I know, that R is a fantastic and powerful tool for many aspects of
> analysis, and so on, but..
> I realy don't understand, why many people want to use it, as it will be a
> typical GIS software.
> There are so many GIS software, which are often much more user-friendly,
> simply to use, and simply better..
> Try for example Quantum GIS. It's easier tu use than ArcGIS, but I
> recommend also to learn Arc if You often work in spatial analysis - it's
> amazing software.
> Q-GIS is under GNU license, is very user-friendly and have many advantages
> which make it better than R in simply spatial analysis.
>
>
> Regards,
> Jacob
>
>
>
>
>
>
>
> -----Oryginalna wiadomość----- From: Ana
> Sent: Tuesday, January 31, 2012 5:35 PM
> To: r-sig-geo@r-project.org
> Subject: [R-sig-Geo] patch geometry
>
>
> Hi!
>
> I am looking for a package that can give me a patch geometry (mean
> size, standard deviation, ...) from a land use/cover dataset in raster
> format, in R.
> Similar to what FRAGTSAT does.
>
> I've found a while ago a post in this forum concerning this same
> request, however I am not able to find it again or to remember the
> name of the package recommended.
>
> Can someone help me out?
>
> Many thanks !!
>
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