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
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