glm

  1. N

    GLMs in Life Assurance - using an Expected "framework"

    I work in Life Assurance and the GLM concept is fairly new to us. To date, we have analysed our mortality experience in the following way - Define an Expected mortality table (this might be a standard published table - or an internal table derived from a prior analysis) - This table...
  2. A

    Co-efficient interpretation in Gamma Regression Model

    Hi Guys, I am trying to fit a gamma regression model using a log link model. Now, I get a negative co-efficient for one of my IVs. What is the best way to interpret this? Should I exponentiate this co-efficient? What does this mean in that case? Thanks for the help.
  3. M

    GLM for proportional data

    Hi, I'm hoping someone can help me sort out question about how the proportion comparisons in GLM works in R. I'm trying to compare hatch success among years (and later, sites). I've used a GLM to compare among years by making a txt file where the success column contains the number of chicks...
  4. M

    Confidence intervals for a binomial distribution

    Hi everyone, In my thesis data set, I'm trying to sort out which years were poor and which were good based on an assortment of breeding bird metrics. The one I'm currently looking at is clutch size, where I've converted 1 and 2 egg clutches (this species never lays more) to a binomial...
  5. M

    GzLM for counts or ?

    Hi everyone, I'm trying to figure out how to run an appropriate comparison for clutch sizes of birds. Ultimately, I want to compare clutch size of the same species between 2 sites with 2 levels (good, poor). First I need to sort out if there were differences among years in each site to be able...
  6. P

    Transforming z to t values (GLM, different error distributions)

    Hi, I am comparing behavioural data collected at two populations. Generalised linear models were used with a behavioural trait as a response variable. The problem is that due to the error distributions, different families were specified for each dataset: Gaussian and Binomial family...
  7. C

    Univariate GLM Model - asking for ETASQ PARAMETERS change effects?

    Hi there, I have a question regarding univariate GLM models. I have entered in three factors and as a covariates and asked for estimated means comparisons. I wasn't interested in interactions at first, I just wanted to see (a) one of my factors predicted the DV and (b) if my estimated means...
  8. R

    glm link function HELP! To gaussian, or not to gaussian, that is the question...

    Please ignore question no longer need help - thank you for all of your responses!