add defuzzification

lepy · Nov 6, 2018 · 9066f07 · 9066f07
1 parent 0e73493
commit 9066f07
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/phuzzy/shapes/__init__.py b/phuzzy/shapes/__init__.py
@@ -76,6 +76,7 @@ def discretize(self, alpha0, alpha1, alpha_levels):
     def alpha(self, x):
         """get alpha from x"""
         df = pd.concat([self.df[["l", "alpha"]].rename(columns={"l":"x"}), self.df[["alpha", "r"]].rename(columns={"r":"x"})]).sort_values(by=["x", "alpha"])
+        df = df.drop_duplicates()
         return np.interp(x, df.x, df.alpha, left=0., right=0.)
 
     def convert_df(self, alpha_levels=None, zero=0):