Search results

  1. L

    Interpreting scaling vs centring vs normalizing negative binomial model

    Hello, I'm a bit confused between the difference between scaling and centring in a negative binomial regression. My model looks like this: invertebrate abundance= Year +shoot count + epiphyte biomass(g) + epiphyte bio*shoot count Years: 2015, 2016 Shoot count range:1-30 Epiphyte bio...
  2. L

    Interaction term with no biological significance

    Hello friends, I've used a negative binomial GLM to look at how invertebrate abundance (over dispersed) is affected by seagrass density. There is a negative interaction between seagrass density and epiphyte biomass (the little plants growing on seagrass blades that invertebrates eat)...
  3. L

    Report insignificant results negative binomial

    Hello everyone, I've used a negative binomial model to predict invertebrate densities. The model fits but is not significant, so I don't want to waste space with a graph in my final report. I want to make simple table showing the coefficients and p values. Does anyone have an example...
  4. L

    Central limit theorem effect of number of samples vs sample size

    Hey guys, For an assignment I've been asked to investigate the CLT when sampling from different distributions using different sample sizes. Do to this in R, I've created histograms of the binomial, poisson, and uniform distribution each with 10, 100, 1000 samples of sample sizes of 10, 20...