Resolve "release v2.3.0"

Closes #440 (closed)

mlair/helpers/helpers.py

@@ -123,7 +123,7 @@ def float_round(number: float, decimals: int = 0, round_type: Callable = math.ce
     return round_type(number * multiplier) / multiplier
 
 
-def relative_round(x: float, sig: int) -> float:
+def relative_round(x: float, sig: int, ceil=False, floor=False) -> float:
     """
     Round small numbers according to given "significance".
 
@@ -135,7 +135,23 @@ def relative_round(x: float, sig: int) -> float:
     :return: rounded number
     """
     assert sig >= 1
-    return round(x, sig-int(np.floor(np.log10(abs(x))))-1)
+    assert not (ceil and floor)
+    if x == 0:
+        return 0
+    else:
+        rounded_number = round(x, sig-get_order(x)-1)
+        if floor is True and rounded_number > round(x, sig-get_order(x)):
+            res = rounded_number - 10 ** (get_order(x) - sig + 1)
+        elif ceil is True and rounded_number < round(x, sig-get_order(x)):
+            res = rounded_number + 10 ** (get_order(x) - sig + 1)
+        else:
+            res = rounded_number
+        return round(res, sig-get_order(res)-1)
+
+
+def get_order(x: float):
+    """Get order of number (as power of 10)"""
+    return int(np.floor(np.log10(abs(x))))
 
 
 def remove_items(obj: Union[List, Dict, Tuple], items: Any):