Add script for generating swing trading signals based on Lower Lows strategy

strategies/lower_lows.py

@@ -0,0 +1,11 @@
+from pandas import DataFrame, Series
+
+def signals(data: DataFrame) -> Series:
+    """
+    Generate signals for entering a long trade when the market makes 
+    a lower low for 2 consecutive days.
+
+    Returns a Series with 'L' for long signals and 'N' otherwise.
+    """
+    lower_low = data['Low'].shift(1) > data['Low']
+    return (lower_low & lower_low.shift(1)).apply(lambda x: 'L' if x else 'N')