def mutate(self):
"""
Mutate this gene's value by a random amount
within the range +/- self.mutAmt
perform mutation IN-PLACE, ie don't return mutated copy
"""
self.value += complex(
uniform(-self.mutAmtReal, self.mutAmtReal),
uniform(-self.mutAmtImag, self.mutAmtImag)
)
# if the gene has wandered outside the alphabet,
# rein it back in
real = medial(self.value.real,self.randMin,self.randMax)
imag = medial(self.value.imag,self.randMin,self.randMax)
self.value = complex(real, imag)
def mutate(self):
"""
perform gene mutation
perform mutation IN-PLACE, ie don't return mutated copy
"""
self.value = chr(ord(self.value) + randint(-self.mutAmt, self.mutAmt))
# if the gene has wandered outside the alphabet,
# rein it back in
self.value = medial(self.value,self.randMin,self.randMax)