[R] Cross correlation/ bivariate/ mantel

[Spencer Graves]

	  RSiteSearch("mantel statistic") produced 27 hits for me, but the 
first few suggested I might not find enlightenment there. 
RSiteSearch("spatial statistics") returned 1064 hits, so I restricted 
that to RSiteSearch("spatial statistics", "functions").  The first of 
those was a director for the 'spdep' package.  A search for "Mantel" on 
that page identified "plot.mc.sim:  Mantel-Hubert spatial general cross 
product statistic".  I haven't tried it.  I know nothing more about it 
than what I've already told you.

	  I hope you'll forgive the terrible pun if I say that I hope I not 
only gave you a fish, I showed you how I caught it.

	  Best Wishes,
	  Spencer Graves

McClatchie, Sam (PIRSA-SARDI) wrote:
>> Background:
>> OS: Linux Ubuntu Dapper
>> release: R 2.3.0
>> editor: GNU Emacs 21.4.1
>> front-end: ESS 5.2.3
>> -----------------------------
>> Colleagues
>>
> 	I have two spatial datasets (latitude, 
longitude, fish eggs) and (latitude, longitude,
fish larvae) at the same 280 stations (i.e. 280
cases). I want to determine if the 2 datasets
are spatially correlated. In other words, do
high numbers of larvae occur where there are
high numbers of eggs? I would like to calculate
the cross correlation for these bivariate data
and calculate a Mantel statistic as described
on pg. 147 of Fortin and Dale 2005 "Spatial
analysis".
> 
> 	My search of R packages came up with 
acf and ccf functions but I don't think these
are what I want. Does anyone know which spatial
package I might find the appropriate test,
please?
> 
>> Best fishes
>>
>> Sam
>> ----
>> Sam McClatchie,
>> Biological oceanography 
>> South Australian Aquatic Sciences Centre
>> PO Box 120, Henley Beach 5022
>> Adelaide, South Australia
>> email <mcclatchie.sam at saugov.sa.gov.au>
>> Cellular: 0431 304 497 
>> Telephone: (61-8) 8207 5448
>> FAX: (61-8) 8207 5481
>> Research home page <http://www.members.iinet.net.au/~s.mcclatchie/>
>>   
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