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Update gaussian_fuzzyset.py

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Shreya 2024-10-30 17:41:52 +05:30 committed by GitHub
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1 changed files with 8 additions and 6 deletions
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fuzzy_logic/gaussian_fuzzyset.py
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@ -27,8 +27,10 @@ class GaussianFuzzySet:
is_complement: Indicates whether this is the complement is_complement: Indicates whether this is the complement
of the original fuzzy set. of the original fuzzy set.
Methods: Methods:
membership(x): Calculate the membership value of an input 'x' in the fuzzy set. membership(member): Calculate the membership value of
complement(): Create a new GaussianFuzzySet instance representing the complement. an input 'member'in the fuzzy set.
complement(): Create a new GaussianFuzzySet instance representing
the complement.
plot(): Plot the membership function of the fuzzy set. plot(): Plot the membership function of the fuzzy set.
>>> fuzzy_set = GaussianFuzzySet("Medium Temperature", mean=25, std_dev=5) >>> fuzzy_set = GaussianFuzzySet("Medium Temperature", mean=25, std_dev=5)
@ -45,9 +47,9 @@ class GaussianFuzzySet:
std_dev: float std_dev: float
is_complement: bool = False # This flag indicates if it's the complement set is_complement: bool = False # This flag indicates if it's the complement set
def membership(self, x: float) -> float: def membership(self, member: float) -> float:
""" """
Calculate the membership value of an input 'x' in the Gaussian fuzzy set. Calculate the membership value of an input 'member' in the Gaussian fuzzy set.
If it's a complement set, returns 1 - the Gaussian membership. If it's a complement set, returns 1 - the Gaussian membership.
>>> GaussianFuzzySet("Medium", 0, 1).membership(0) >>> GaussianFuzzySet("Medium", 0, 1).membership(0)
@ -56,7 +58,7 @@ class GaussianFuzzySet:
0.6065306597126334 0.6065306597126334
""" """
membership_value = np.exp(-0.5 * ((x - self.mean) / self.std_dev) ** 2) membership_value = np.exp(-0.5 * ((member - self.mean) / self.std_dev) ** 2)
# Directly return for non-complement or return 1 - membership for complement # Directly return for non-complement or return 1 - membership for complement
return membership_value if not self.is_complement else 1 - membership_value return membership_value if not self.is_complement else 1 - membership_value
@ -74,7 +76,7 @@ class GaussianFuzzySet:
is_complement=not self.is_complement, is_complement=not self.is_complement,
) )
def plot(self): def plot(self) -> None:
""" """
Plot the membership function of the Gaussian fuzzy set. Plot the membership function of the Gaussian fuzzy set.
""" """