[R] Help with short time series

From: Simone Vincenzi <simone.vincenzi_at_nemo.unipr.it>
Date: Sat 05 Aug 2006 - 07:45:19 EST


Dear R-list,
I have a statistical problem with the comparison of two short time-series of density data in an ecological framework. I have to compare two short time series (5 years, one value for each year) of species density data (it is the density of fish in two different streams) to test if the two means of the five densities are significantly different, so basically if the two mean stream-specific fish densities are significantly different. I don't think I can use a straight t-test due to the problem of autocorrelation and I don't think I can use a repeated measure ANOVA as I don't have any replicates.
Any help would be greatly appreciated.

Thanks

Simone Vincenzi

--
Universita' degli Studi di Parma (http://www.unipr.it)

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Received on Sat Aug 05 09:03:55 2006

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