Achim Zeileis's user avatar
Achim Zeileis's user avatar
Achim Zeileis's user avatar
Achim Zeileis
  • Member for 9 years, 5 months
  • Last seen this week
50 votes
Accepted

Is a "hurdle model" really one model? Or just two separate, sequential models?

27 votes
Accepted

Why is the quasi-Poisson in GLM not treated as a special case of negative binomial?

26 votes

Why does lrtest() not match anova(test="LRT")

24 votes
Accepted

Simulate from a zero-inflated poisson distribution

17 votes
Accepted

Interpretation of Breusch-Pagan test bptest() in R

17 votes
Accepted

R: Augmented Dickey Fuller (ADF) test

17 votes
Accepted

Compare poisson and negative binomial regression with LR test

17 votes
Accepted

How to detect and quantify a structural break in time-series (R)

16 votes
Accepted

How to implement a mixed model using betareg function in R?

15 votes
Accepted

Confidence interval from R's prop.test() differs from hand calculation and result from SAS

15 votes
Accepted

Significance in beta regression and glm binomial

15 votes
Accepted

Why use the logit link in beta regression?

15 votes
Accepted

In R, test whether coefficients in lm are different each to a given value (other than zero)

15 votes

Zero inflated distributions, what are they really?

14 votes
Accepted

interpretation of betareg coef

14 votes

How to get ANOVA table with robust standard errors?

14 votes

Why do Decision Trees/rpart prefer to choose continuous over categorical variables?

14 votes

When to use Poisson vs. geometric vs. negative binomial GLMs for count data?

14 votes
Accepted

White's test for heteroskedasticity in R

13 votes
Accepted

Correcting for multiple pairwise comparisons with GAM objects {mgcv} in R

12 votes
Accepted

Proportion data with number of trials known (and separation?): GLM or beta regression?

11 votes
Accepted

hurdle model with non-zero gaussian distribution in R

11 votes
Accepted

Estimate number of breakpoints in regression

11 votes
Accepted

variance vs. standard deviation in beta regression

10 votes
Accepted

What is the test statistics used for a conditional inference regression tree?

10 votes
Accepted

Censored regression in R

9 votes
Accepted

Regression trees to model rates

9 votes
Accepted

Newey-West standard errors when Durbin-Watson test results are fine

9 votes
Accepted

How does the R function arima() calculate its residuals?

9 votes
Accepted

How do you report results from a Beta Regression (R output)?

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