[GRASS-user] [GRASSLIST:270] Fwd: Developing a forest fragmentation index

[Anusheema Chakraborty]

Hi Paulo,

Thanks a lot for the update!

Best,
Anusheema

On 30 January 2015 at 13:50, Paulo van Breugel <p.vanbreugel at gmail.com>
wrote:

> Hi, there is an updated version for grass 7 which you can install using
> g.extension.
>
> On Sat, 27 Dec 2014 18:40 Anusheema Chakraborty <anusheema at gmail.com>
> wrote:
>
>> Thanks for the response!
>>
>> I was trying to use the shell script in GRASS 6. And I am working on a
>> Windows system. I'll use the updated version of the Shell script with GRASS
>> version 7, I suppose, and I would let you know how it goes.
>>
>> Thanks again!
>>
>> On 27 December 2014 at 19:25, Paulo van Breugel <p.vanbreugel at gmail.com>
>> wrote:
>>
>>> Hi Anusheema
>>>
>>> As I replied on your question on my blogpost, there are two versions of
>>> the script; one for GRASS 6  and one for GRASS 7. In both cases you need to
>>> install the script manually (I am planning to rewrite the script as a
>>> python script, but that will take some time).
>>>
>>> The script for GRASS 7 did indeed not work anymore for me due to syntax
>>> changes in some of the functions used. An updated version should be
>>> available on
>>> http://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.forestfrag.
>>> If you try out and it doesn't work, let me know (and if so, please indicate
>>> whether you are running this on Linux or Windows).
>>>
>>> Paulo
>>>
>>>
>>> On Sat, Dec 27, 2014 at 2:38 PM, Markus Neteler <neteler at osgeo.org>
>>> wrote:
>>>
>>>> On Sat, Dec 27, 2014 at 12:53 PM, anusheema <anusheema at gmail.com>
>>>> wrote:
>>>> > Dear list members,
>>>> >
>>>> > I am also interested in implementing Dr. Kurt Ritters forest
>>>> fragmentation
>>>> > model. I was, however, attempting this in R Statistical software,
>>>> although I
>>>> > am pretty new to both R and GRASS.
>>>>
>>>> Which GRASS version do you use?
>>>>
>>>> > While reading forums on this model, I came across this post. I see
>>>> that Mr.
>>>> > Maning Sambale and Mr. Stefan Sylla have developed an AddOn for GRASS:
>>>> > r.forestfrag (
>>>> http://grasswiki.osgeo.org/wiki/GRASS_AddOns#r.forestfrag).
>>>> > But while trying to attempt this model on GRASS, it keeps showing an
>>>> error
>>>> > (AddOn not found).
>>>>
>>>> If you are using GRASS 6: the script has been written for GRASS 7. You
>>>> can install both 6 and 7 in parallel on the same computer. However, I
>>>> see a link to a GRASS 6 version of the script in the Wiki page.
>>>>
>>>> If you are using GRASS 7: The reason is that it has not been
>>>> implemented as Python script but as Shell script. To my knowledge
>>>> g.extention (the extension manager) is not capable to deal with shell
>>>> scripts.
>>>>
>>>> > If you could please share the script? I was trying to implement the
>>>> script
>>>> > mentioned in this post, but without much luck. In R, with the help of
>>>> this
>>>> > script, replicating Pf is easier, however, for Pff, implementing the
>>>> code in
>>>> > cardinal direction only, is more complex.
>>>>
>>>> You can simply download the script from here:
>>>>
>>>> http://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.forestfrag/r.forestfrag?format=txt
>>>> and put it into the search path in your GRASS session. Be sure to set
>>>> the "executable" flag.
>>>>
>>>> Please let us know how it goes.
>>>>
>>>> Markus
>>>> _______________________________________________
>>>> grass-user mailing list
>>>> grass-user at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/grass-user
>>>>
>>>
>>>
>>
>>
>> --
>>
>> *Anusheema Chakraborty*
>> PhD Scholar
>> Department of Natural Resources
>> TERI University
>> 10, Institutional Area, Vasant Kunj, New Delhi - 110070 (India)
>> Website: www.teriuniversity.ac.in
>>
>


-- 

*Anusheema Chakraborty*
PhD Scholar
Department of Natural Resources
TERI University
10, Institutional Area, Vasant Kunj, New Delhi - 110070 (India)
Website: www.teriuniversity.ac.in
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