[R] R: Optimization

of Variance Table Res.Df RSS Df Sum of Sq F Pr(F) 1102 14.2409 2103 14.3650 -1 -0.1241 0.8891 0.3479 Thanks for the help Simone Vincenzi _ Simone Vincenzi, PhD Student Department of Environmental Sciences

[R] Optimization

transformation is needed and which R function is the most appropriate to try to estimate the weights. Any help would be greatly appreciated. Simone Vincenzi _ Simone Vincenzi, PhD Student Department of Environmental Sciences University of Parma Parco Area delle

[R] Help with short time series

(http://www.unipr.it) _ Simone Vincenzi, PhD Student Department of Environmental Sciences University of Parma Parco Area delle Scienze, 33/A, 43100 Parma, Italy Phone: +39 0521 905696 Fax: +39 0521 906611 e.mail: [EMAIL PROTECTED] -- -- Universita

[R] Help with short time series

Thanks for the help. I provide below the dataset I'm using, it's a little bit different from what I was describing (sorry for that). The streams are 3 and I have an unequal number of years for each stream. Stream Density Year 1     Zak    0.20 2000 2     Zak    0.36 2001 3     Zak    0.41

[R] Help with short time series

don't have any replicates. Any help would be greatly appreciated. Thanks Simone Vincenzi -- Universita' degli Studi di Parma (http://www.unipr.it) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] Zero-inflated neg.bin. model and pscl package

outcome model and the second one is a negative binomial model, assuming that zeros arise from a single process and set of covariates, as proposed by Dobbie and Welsh (Austr.N.Z.J.Stat., 2001) Thanks Simone Vincenzi PhD student in Ecology, University of Parma, Italy