Makes prediction using a fitted erf object.
Fitted erf object.
Numeric matrix or data.frame of test predictor values
at which predictions are to be made. If NULL, predictions are made on the
training data instead.
For further information see grf::quantile_forest().
Default is NULL.
Numeric vector of quantile levels at which estimates are
to be made.
Default is c(0.95, 0.99).
Dots. Currently ignored.
Numeric matrix with predictions for each test point (rows) at the desired quantile levels (columns).