fixed typo (#937)

b1b24ee2 · Nikita Titov · Guolin Ke · 51bceaaa · b1b24ee2
Commit b1b24ee2 authored Sep 27, 2017 by Nikita Titov Committed by Guolin Ke Sep 27, 2017
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src/io/config.cpp src/io/config.cpp +1 -1

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--- a/src/io/config.cpp
+++ b/src/io/config.cpp
@@ -230,7 +230,7 @@ void OverallConfig::CheckParamConflict() {
    int full_num_leaves = static_cast<int>(std::pow(2, boosting_config.tree_config.max_depth));
    if (full_num_leaves > boosting_config.tree_config.num_leaves 
        && boosting_config.tree_config.num_leaves == kDefaultNumLeaves) {
-      Log::Warning("Accuracy may be bad since you didn't set num_leaves and max_depth² > num_leaves.");
+      Log::Warning("Accuracy may be bad since you didn't set num_leaves and 2^max_depth > num_leaves.");
    }
  }
 }