I have created two generalised linear models as follows:
glm1 <-glm(Y ~ X1 + X2 + X3, family=binomial(link=logit))
glm2 <-glm(Y ~ X1 + X2, family=binomial(link=logit))
I then use the anova
function:
anova(glm2,glm1)
but get an error message:
"Error in anova.glmlist(c(list(object),dotargs), dispersion = dispersion, :
models were not all fitted to the same size of dataset"
What does this mean and how can I fix this? I have attach
ed the dataset at the start of my code so both models are working off of the same dataset.