beta regression

If I'd like to test the hypothesis that there is no difference in mean seagrass cover between two months, over all years, what test/analysis is best to use? My thoughts move to a z-test because I'm testing differences between two samples and the sample size is >30. On the other-hand I've...

We have recently been trying to use the zero-one inflated beta regression macros that were published as part of SAS Global Forum 2012 (see... https://support.sas.com/resources/papers/proceedings12/325-2012.pdf they have been very helpful in more accurately modelling the Loss Given Default (LGD)...

Hello, I have a split-plot design and I want to test the effect of 2 factors on the disease incidence (continuous proportion). I am using Beta dist. which is appropriate for these data (bounded within 0-1). The fit statistics look OK (Pearson Chi-square/DF close to 1) Fit Statistics for...

Does anyone have some good resources for Beta Regression related to all of its parts: -assumptions -diagnostic (residuals) -interpretation of independent variables (continuous and categorical) -etc. _____________________________________________________ I am going to get a dataset...

Moderator note: This thread was split from a previous thread as it didn't directly address the question in the previous thread and deserves its own space Hi everybody, I know it is a bit old topic but I hope someone can give me advice. I have a similar situation (ANOVA with percentages) but...

Hey guys, What would a Beta with NO intercept tell me about a time series model?

Hello, dear fellow R users, I am using beta regression because I am trying to predict percentages (response and dropout rates) of surveys. My aim is now to come up with a final model (I have many different variables and want to reduce them to a final model). I wanted to do that by using...