[R-sig-Geo] Wavelet analysis of anisotropy in point patterns

[Marcelino de la Cruz Rot]

Hi Domenico,

AFAIK, you should build your own functions to get the same analysis 
provided by the PASSaGE software. If you have some elementary R 
programming skills, following the description of the analysis proposed 
by Rosenberg(2004) shouldn't be much complicated. Otherwise...I don't know.

Good luck!

Marcelino


El 19/07/2017 a las 12:12, Domenico Giusti escribió:
> Thank you Marcelino,
>
> I already had a look at those functions and, although they do the job, 
> I was wondering how to analyze anisotropy in point pattern using 
> wavelet analysis.
>
> I tried to use the WaveletComp package, but with no success. It looks 
> to me that packages for wavelet analysis work fine with temporal data, 
> but I couldn't find the way to use it with spatial point patterns.
>
> How could I get in R the same analysis provided by the PASSaGE software?
>
> Thank you!
>
> On 07/18/2017 06:17 PM, Marcelino de la Cruz Rot wrote:
>> Hi Domenico,
>>
>> In spatstat you have several functions to detect anysotropy in point 
>> patterns:
>> - the sector K-function, Ksector();
>> - the pair orientation distribution, pairorient();
>> - the anisotropic pair correlation function, Kmeasure().
>>
>> See the help pages of these functios or, even better, consult pages 
>> 236:242 in  Adrian Baddeley, Ege Rubak, Rolf Turner (2015). Spatial 
>> Point  Patterns: Methodology and Applications with R. London: Chapman 
>> and   Hall/CRC Press, 2015.
>> http://www.crcpress.com/Spatial-Point-Patterns-Methodology-and-Applications-with-R/Baddeley-Rubak-Turner/9781482210200/ 
>>
>>
>> Cheers,
>>
>> Marcelino
>>
>> El 18/07/2017 a las 16:30, Domenico Giusti escribió:
>>> Hi all,
>>>
>>> I'm running wavelet analysis of anisotropy in point patterns using 
>>> the PASSaGE software by Rosenberg et al.
>>>
>>> Rosenberg, M.S., and C.D. Anderson (2011) PASSaGE: Pattern Analysis, 
>>> Spatial Statistics and Geographic Exegesis. Version 2. Methods in 
>>> Ecology & Evolution 2(3):229-232.
>>> http://www.passagesoftware.net
>>>
>>> Rosenberg, M.S. 2004. Wavelet analysis for detecting anisotropy in 
>>> point patterns. Journal of Vegetation Science 15:277-284.
>>> DOI: 10.1111/j.1654-1103.2004.tb02262.x
>>>
>>> I wonder how I can do the same analysis using R.
>>>
>>> Thanks,
>>>
>>> Dome
>>>
>>
>
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-- 
Marcelino de la Cruz Rot
Depto. de Biología y Geología
Física y Química Inorgánica
Universidad Rey Juan Carlos
Móstoles España