a new test function

funcs/functions.py

@@ -13,6 +13,7 @@ def flagDispatch(func_name, *args, **kwargs):
         "manflag": flagManual,
         "mad": flagMad,
         "constant": flagConstant,
+        "range": flagRange,
         "generic": flagGeneric}
 
     func = func_map.get(func_name, None)
@@ -82,6 +83,14 @@ def flagManual(data, flags, field, flagger, **kwargs):
     return data, flags
 
 
+def flagRange(data, flags, field, flagger, min, max, **kwargs):
+
+    datacol = data[field].values
+    mask = (datacol < min) | (datacol >= max)
+    flags.loc[mask, field] = flagger.setFlag(flags.loc[mask, field], **kwargs)
+    return data, flags
+
+
 def flagMad(data, flags, field, flagger, length, z, deriv, **kwargs):
 
     def _flagMad(data: np.ndarray, z: int, deriv: int) -> np.ndarray: