Looks at the
see if it has an intercept term.
A fitted model object.
Formula number, is 1 or 2.
which correspond to the arguments
Arguments that are might be passed from one function to another.
This methods function is a simple way to determine whether a
vglm object etc. has an intercept term
It is not entirely foolproof because one might suppress the
intercept from the formula and then add in a variable in the
formula that has a constant value.
Returns a single logical.
Thomas W. Yee
1 2 3 4 5 6 7 8 9
# Example: this is based on a glm example counts <- c(18,17,15,20,10,20,25,13,12) outcome <- gl(3, 1, 9); treatment <- gl(3, 3) pdata <- data.frame(counts, outcome, treatment) # Better style vglm.D93 <- vglm(counts ~ outcome + treatment, poissonff, data = pdata) formula(vglm.D93) term.names(vglm.D93) responseName(vglm.D93) has.intercept(vglm.D93)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.