scalar or vector of boosting step(s) at which prediction is wanted. If no step is given, the final boosting step is used.
scaled
logical value indicating whether coefficients should be returned scaled to be at the level of the original covariate values, or unscaled as used internally when standardize=TRUE is used in the CoxBoost call.
...
miscellaneous arguments, none of which is used at the moment.
Value
For a vector of length p (number of covariates) (at.step being a scalar) or a length(at.step) * p matrix (at.step being a vector).
