Re: [R-sig-eco] adonis() and collinearity

2014-09-17 Thread Jari Oksanen
Dear Jonas Kuppler, On 17/09/2014, at 16:06 PM, Jonas Kuppler wrote: > > if I use only continuous explanatory variables in the adonis() function it is > like a multiple linear regression with dissimilarities. > > In multiple regression with highly correlated exp. variables I have the > proble

[R-sig-eco] adonis() and collinearity

2014-09-17 Thread Jonas Kuppler
Dear all, if I use only continuous explanatory variables in the adonis() function it is like a multiple linear regression with dissimilarities. In multiple regression with highly correlated exp. variables I have the problem with multicollinearity and an increasing standard error of the coeff

Re: [R-sig-eco] Zero inflated data on some levels of a random factor in mixed models

2014-09-17 Thread Krista Takkis
Dear Mollie and Ben, Thank you very much for your recommendations! Best regards, Krista 2014-09-17 3:33 GMT+03:00 Mollie Brooks : > Dear Krista, > > glmmADMB will only model a zero inflation constant that equally applies to > all species (i.e. no predictors for number of zeros). It sounds like i