qq-plot

  1. M

    Normality / QQ-Plot in Generalized Linear Models (GLM)

    Hi, sorry if this is a frequent question, but I did not find an appropriate answer: If I have a GLM with a non-normal distributed outcome (such as Poisson- or Binomial distributed), does it make sense to check normality of the residuals? Intuitively I would say no, since I explicitly...
  2. noetsi

    Nominal predictor with 70 levels....

    I have a nominal level predictor with 70 levels (its units that provide some service). I want to analyze how these units preform on an interval response variable (I will use linear regression) and a two level response variable (I will use logistic regression). I can of course compare one level...
  3. noetsi

    Test of discrete distributions

    There are test such as Anderson Darling if a distribution is normally distributed. At least in SAS these do not cover discrete distributions such as Poisson or binomial. Nor can you do a qq plot for these [there are complex ways to generating equivalents to qq plots]. Anyone know a test if...