Additional performance using appropriate metric for pairwise distribution fit.
perf_pairwise(y, f, group, metric = "ndcg", w = NULL, max_rank = 0)responses used for fit.
the predicted responses.
the indices specifiying which response variables belong to which groups.
What type of performance measure to compute in
perf_pairwise. Can take values "ir_measure_conc",
"ir_measure_mrr", "ir_measure_map" or "ir_measure_ndgc".
is the weights of each observation.
the maximum rank considered in the groups measure.