Fix implementation of rolling_max

freqtrade/vendor/qtpylib/indicators.py

@@ -288,9 +288,9 @@ def rolling_min(series, window=14, min_periods=None):
 def rolling_max(series, window=14, min_periods=None):
     min_periods = window if min_periods is None else min_periods
     try:
-        return series.rolling(window=window, min_periods=min_periods).min()
+        return series.rolling(window=window, min_periods=min_periods).max()
     except Exception as e:  # noqa: F841
-        return pd.Series(series).rolling(window=window, min_periods=min_periods).min()
+        return pd.Series(series).rolling(window=window, min_periods=min_periods).max()
 
 
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