Add inital cut of iter_utils with a coupel of iters I needed. Tweak

math_utils population.

1 files changed, 6 insertions, 0 deletions

diff --git a/math_utils.py b/math_utils.py
index 64cd9fb..ed9c2f4 100644
--- a/math_utils.py
+++ b/math_utils.py
@@ -41,6 +41,8 @@ class NumericPopulation(object):
         self.lowers, self.highers = [], []
         self.aggregate = 0.0
         self.sorted_copy: Optional[List[float]] = None
+        self.maximum = None
+        self.minimum = None
 
     def add_number(self, number: float):
         """Adds a number to the population.  Runtime complexity of this
@@ -52,6 +54,10 @@ class NumericPopulation(object):
             heappush(self.lowers, -number)  # for lowers we need a max heap
         self.aggregate += number
         self._rebalance()
+        if not self.maximum or number > self.maximum:
+            self.maximum = number
+        if not self.minimum or number < self.minimum:
+            self.minimum = number
 
     def _rebalance(self):
         if len(self.lowers) - len(self.highers) > 1: