experimenting with rules..

Author: amogorkon

Showcase.ipynb

@@ -105,6 +105,15 @@ def __delattr__(self, name):
         else:
             raise FuzzyWarning("Trying to delete a regular attr, this needs extra care.")
 
+    def MIN(self, x):
+        """Standard way to get the min over all membership funcs.
+        
+        It's not just more convenient but also faster than
+        to calculate all results, construct a dict, unpack the dict
+        and calculate the min from that.
+        """
+        return min(f(x) for f in self._sets.values())
+            
 class Set:
     """
     A fuzzyset defines a 'region' within a domain.

fuzzy/classes.py

@@ -480,7 +480,7 @@ def gauss(c, b, *, c_m=1):
         defines the symmetry center/peak of the graph
     """
     assert 0 < c_m <= 1
-    assert 0 < b
+    assert 0 < b, "b must be greater than 0"
 
     def f(x):
         try:

fuzzy/functions.py

@@ -0,0 +1,3 @@
+
+def scale(x, *, IN_min=0, IN_max=1, OUT_min, OUT_max):
+    return (OUT_max - OUT_min)*(x - IN_min) / (IN_max - IN_min) + OUT_min