41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
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import numpy as np
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import math
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from pyFTS import *
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def trimf(x, parameters):
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xx = round(x, 3)
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if (xx < parameters[0]):
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return 0
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elif (xx >= parameters[0] and xx < parameters[1]):
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return (x - parameters[0]) / (parameters[1] - parameters[0])
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elif (xx >= parameters[1] and xx <= parameters[2]):
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return (parameters[2] - xx) / (parameters[2] - parameters[1])
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else:
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return 0
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def trapmf(x, parameters):
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if (x < parameters[0]):
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return 0
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elif (x >= parameters[0] and x < parameters[1]):
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return (x - parameters[0]) / (parameters[1] - parameters[0])
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elif (x >= parameters[1] and x <= parameters[2]):
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return 1
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elif (x >= parameters[2] and x <= parameters[3]):
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return (parameters[3] - x) / (parameters[3] - parameters[2])
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else:
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return 0
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def gaussmf(x, parameters):
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return math.exp(-0.5 * ((x - parameters[0]) / parameters[1]) ** 2)
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def bellmf(x, parameters):
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return 1 / (1 + abs((x - parameters[2]) / parameters[0]) ** (2 * parameters[1]))
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def sigmf(x, parameters):
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return 1 / (1 + math.exp(-parameters[0] * (x - parameters[1])))
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