Returns a logical vector from a test of whether an object such as a matrix or VGLM object corresponds to a 'zero' assumption.
an object such as a coefficient matrix of a
additional optional arguments. Currently unused.
These functions test the effect of the
vglm object or the coefficient matrix
The latter is obtained by
coef(vglmObject, matrix = TRUE).
A vector of logicals, testing whether each linear/additive predictor
zero argument applied to it.
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.
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