Re: [R] Cross correlation/ bivariate/ mantel

From: Rogerio Porto <rdporto1_at_terra.com.br>
Date: Sat 20 May 2006 - 07:05:09 EST

Sam,

maybe you'll like to read about some environmetrics packages at http://cran.r-project.org/src/contrib/Views/Environmetrics.html or about more specific spatial analysis packages at http://cran.r-project.org/src/contrib/Views/Spatial.html

Have a good reading and... good luck!

Rogerio.
----- Original Message -----
From: "McClatchie, Sam (PIRSA-SARDI)" <mcclatchie.sam@saugov.sa.gov.au> To: <r-help@stat.math.ethz.ch>
Sent: Friday, May 19, 2006 12:16 AM
Subject: [R] Cross correlation/ bivariate/ mantel

> 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@saugov.sa.gov.au>
> Cellular: 0431 304 497
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat May 20 07:42:00 2006

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