pub fn cross_val_predict<E, F, C>( estimator: E, x: &Array2<Float>, y: &Array1<Float>, cv: &C, _n_jobs: Option<usize>, ) -> Result<Array1<Float>>where E: Clone + Fit<Array2<Float>, Array1<Float>, Fitted = F>, F: Predict<Array2<Float>, Array1<Float>>, C: CrossValidator,
Generate cross-validated estimates for each input data point