Extracts pooled coefficients. (The meta learners linearly combines the coefficients from the base learners.)
# S3 method for joinet coef(object, ...)
further arguments (not applicable)
This function returns the pooled coefficients.
alpha contains the intercepts
in a vector of length \(q\),
and the slot
beta contains the slopes
in a matrix with \(p\) rows (inputs) and \(q\) columns.