fix #816

2f0fb204 · Guolin Ke · 1a7d3aa9 · 2f0fb204
Commit 2f0fb204 authored Aug 10, 2017 by Guolin Ke
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src/metric/map_metric.hpp src/metric/map_metric.hpp +1 -1

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--- a/src/metric/map_metric.hpp
+++ b/src/metric/map_metric.hpp
@@ -86,7 +86,7 @@ public:
        data_size_t idx = sorted_idx[j];
        if (label[idx] > 0.5f) {
          ++num_hit;
-          sum_ap += static_cast<double>(num_hit) / (i + 1.0f);
+          sum_ap += static_cast<double>(num_hit) / (j + 1.0f);
        }
      }
      (*out)[i] = sum_ap / cur_k;