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-rw-r--r--searchlib/src/vespa/searchlib/fef/indexproperties.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/searchlib/src/vespa/searchlib/fef/indexproperties.h b/searchlib/src/vespa/searchlib/fef/indexproperties.h
index db97db0d894..d047eb13347 100644
--- a/searchlib/src/vespa/searchlib/fef/indexproperties.h
+++ b/searchlib/src/vespa/searchlib/fef/indexproperties.h
@@ -181,7 +181,7 @@ namespace temporary {
/**
* A number in the range [0,1] for the effective idf range for WeakAndOperator.
* 1.0 will give the complete range as used by default by bm25.
- * idf = (1.0 - range) + (range * idf)
+ * scaled_idf = (1.0 - range) * max_idf + (range * idf)
* 0.0 which is default gives default legacy behavior.
**/
struct WeakAndRange {