[R-sig-Geo] modified t-test using SpatialPack for correlation

[Barry Rowlingson]

On Wed, Oct 17, 2012 at 6:55 PM, Tara Bridwell <tarabridwell at gmail.com> wrote:
> Hi List,
> I am wanting to do a modified t-test to account for auto-correlation,
> similar to Dutilleul 1993 (Dutilleul, P. (1993) Modifying the t test
> for assessing the correlation between two spatial processes.
> Biometrics 49, 305–314.).
>
> I was trying to use the SpatialPack package
> (http://cran.r-project.org/web/packages/SpatialPack/SpatialPack.pdf),
> but have had trouble installing it.  My questions are:
>
> 1. Has anyone else had trouble with package and/or used it successfully?

 Oh no, what kind of trouble? Error messages?

 install.packages("SpatialPack") works fine for me on R 2.15

 The modified.ttest example runs as well.

> 2. Is there another package that would allow me to do a modified
> t-test?  I saw a previous post from 2007 that said that no package was
> available but that was years ago.

 Let's get this working. What was your problem precisely?

Barry