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

Domenico Giusti dncgst at gnewarchaeology.it
Wed Jul 19 12:12:39 CEST 2017


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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