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  1. spunky

    Extracting p-values from an glmmML fitted model

    So, I downloaded the glmmML R package to get p-values for both fixed and random effects but I don't know how to extract said p-values. Example: id <- factor(rep(1:20, rep(5, 20))) y <- rbinom(100, prob = rep(runif(20), rep(5, 20)), size = 1) x <- rnorm(100) dat <- data.frame(y = y, x = x, id...
  2. spunky

    How to make ugly greyscale plot pretty? :(

    Hi all! So I'm getting ready some plots for my next manuscript. As some of us know, colour images are frowned upon among journal editors and they prefer the boring black-and-white option for publication. I have the following plot that conveyed the following information. For argument sake...
  3. spunky

    Good sources (books, articles, ....) on the history of Monte Carlo methods?

    I am finally entering the final step of my PhD. Chapter 1 of my dissertation has already been published, Chapter 2 has been submitted for publication and Chapter 3 is kind of in the middle. I just need to stick an Intro and a Conclusion and we'll call it a day. But, before that, I need to...
  4. spunky

    range of possible values for regression coefficients given another one?

    i feel like the answer to my question is a 'no' but i'll ask it anyway just to be absolutely sure. say you have 3 variables X, Y and Z each one with some correlation r_{xy}, r_{yz}, r_{xz}. we know from the formula of the determinant of the correlation matrix that if, for instance, r_{xy} and...
  5. spunky

    Multivariate distributions that are 'closed' under marginalization?

    a very, very nice property of the multivariate normal distribution is that any lower-dimensional margins are also multivariate (or univariate, depending on how low you go) normally distributed. does anyone know any other distributions for which this property is true? is there some sort of...
  6. spunky

    On comparisons of (standardized) regression coefficients...

    hello there. i decided to put together this as a thread and not a series of chat exchanges because i think quite a few people may be able to benefit from it. the issue that arises is whether or not one can use the regression b-weights (whether standardized or not) to somehow gauge the "impact"...
  7. spunky

    On the history of MANOVA's null hypothesis...

    hey everyone! this is kind of a different topic from the "how-to-analyze-my-data" questions, but i think it's kind of relevant. anyways, so my advisor brought in this question in our previous research meeting. it seems like people phrase MANOVA's null hypothesis in two ways: 1. the vector...