Last chance! 50% off unlimited learning
Sale ends in
Returns a logical vector from a test of whether an object such as a matrix or VGLM object corresponds to a 'zero' assumption.
is.zero.matrix(object, ...)
is.zero.vglm(object, ...)A vector of logicals,
testing whether each linear/additive predictor
has the zero argument applied to it.
It is TRUE if that linear/additive predictor is
intercept-only, i.e., all other regression coefficients
are set to zero.
No checking is done for the intercept term at all, i.e., that it was estimated in the first place.
an object such as a coefficient matrix of a vglm
object, or a vglm object.
additional optional arguments. Currently unused.
These functions test the effect of the zero argument
on a vglm object or the coefficient matrix
of a vglm object. The latter is obtained by
coef(vglmObject, matrix = TRUE).
constraints,
vglm,
CommonVGAMffArguments.
coalminers <- transform(coalminers, Age = (age - 42) / 5)
fit <- vglm(cbind(nBnW,nBW,BnW,BW) ~ Age, binom2.or(zero = NULL),
data = coalminers)
is.zero(fit)
is.zero(coef(fit, matrix = TRUE))
Run the code above in your browser using DataLab