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diff --git a/src/tree/param.h b/src/tree/param.h index e9de3ac..23d0c5b 100644 --- a/src/tree/param.h +++ b/src/tree/param.h @@ -9,6 +9,7 @@ #include <vector> #include <cstring> +#include <cmath> namespace xgboost { namespace tree {