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 <[EMAIL PROTECTED]>
>> 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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