def G1DBinaryStringXTwoPoint(genome, **args):
"""
The 1D Binary String crossover, Two Point
.. warning:: You can't use this crossover method for binary strings with length of 1.
"""
sister = None
brother = None
gMom = args["mom"]
gDad = args["dad"]
if len(gMom) == 1:
utils.raiseException(
"The Binary String have one element, can't use the Two Point Crossover method !",
TypeError)
cuts = [prng.randint(1, len(gMom)), prng.randint(1, len(gMom))]
if cuts[0] > cuts[1]:
utils.listSwapElement(cuts, 0, 1)
if args["count"] >= 1:
sister = gMom.clone()
sister.resetStats()
sister[cuts[0]:cuts[1]] = gDad[cuts[0]:cuts[1]]
if args["count"] == 2:
brother = gDad.clone()
brother.resetStats()
brother[cuts[0]:cuts[1]] = gMom[cuts[0]:cuts[1]]
return (sister, brother)
def G1DListMutatorSIM(genome, **args):
"""
The mutator of G1DList, Simple Inversion Mutation
.. note:: this mutator is :term:`Data Type Independent`
"""
mutations = 0
if args["pmut"] <= 0.0:
return 0
cuts = [prng.randint(0, len(genome) + 1), prng.randint(0, len(genome) + 1)] # HERE IT SHOULD BE INCLUSIVE
if cuts[0] > cuts[1]:
utils.listSwapElement(cuts, 0, 1)
if (cuts[1] - cuts[0]) <= 0:
cuts[1] = prng.randint(cuts[0], len(genome) + 1) # HERE IT SHOULD BE INCLUSIVE
if utils.randomFlipCoin(args["pmut"]):
part = genome[cuts[0]:cuts[1]]
if len(part) == 0:
return 0
part.reverse()
genome[cuts[0]:cuts[1]] = part
mutations += 1
return mutations
def G1DBinaryStringXTwoPoint(genome, **args):
"""
The 1D Binary String crossover, Two Point
.. warning:: You can't use this crossover method for binary strings with length of 1.
"""
sister = None
brother = None
gMom = args["mom"]
gDad = args["dad"]
if len(gMom) == 1:
utils.raiseException("The Binary String have one element, can't use the Two Point Crossover method !", TypeError)
cuts = [prng.randint(1, len(gMom)), prng.randint(1, len(gMom))]
if cuts[0] > cuts[1]:
utils.listSwapElement(cuts, 0, 1)
if args["count"] >= 1:
sister = gMom.clone()
sister.resetStats()
sister[cuts[0]:cuts[1]] = gDad[cuts[0]:cuts[1]]
if args["count"] == 2:
brother = gDad.clone()
brother.resetStats()
brother[cuts[0]:cuts[1]] = gMom[cuts[0]:cuts[1]]
return (sister, brother)
def G1DListMutatorSIM(genome, **args):
"""
The mutator of G1DList, Simple Inversion Mutation
.. note:: this mutator is :term:`Data Type Independent`
"""
mutations = 0
if args["pmut"] <= 0.0:
return 0
cuts = [
prng.randint(0,
len(genome) + 1),
prng.randint(0,
len(genome) + 1)
] # HERE IT SHOULD BE INCLUSIVE
if cuts[0] > cuts[1]:
utils.listSwapElement(cuts, 0, 1)
if (cuts[1] - cuts[0]) <= 0:
cuts[1] = prng.randint(cuts[0],
len(genome) + 1) # HERE IT SHOULD BE INCLUSIVE
if utils.randomFlipCoin(args["pmut"]):
part = genome[cuts[0]:cuts[1]]
if len(part) == 0:
return 0
part.reverse()
genome[cuts[0]:cuts[1]] = part
mutations += 1
return mutations
def G1DListMutatorSwap(genome, **args):
""" The mutator of G1DList, Swap Mutator
.. note:: this mutator is :term:`Data Type Independent`
"""
if args["pmut"] <= 0.0:
return 0
listSize = len(genome)
mutations = args["pmut"] * listSize
if mutations < 1.0:
mutations = 0
for it in xrange(listSize):
if utils.randomFlipCoin(args["pmut"]):
utils.listSwapElement(genome, it, prng.randint(0, listSize))
mutations += 1
else:
for it in xrange(int(round(mutations))):
utils.listSwapElement(genome, prng.randint(0, listSize), prng.randint(0, listSize))
return int(mutations)
def G1DListMutatorSwap(genome, **args):
""" The mutator of G1DList, Swap Mutator
.. note:: this mutator is :term:`Data Type Independent`
"""
if args["pmut"] <= 0.0:
return 0
listSize = len(genome)
mutations = args["pmut"] * listSize
if mutations < 1.0:
mutations = 0
for it in xrange(listSize):
if utils.randomFlipCoin(args["pmut"]):
utils.listSwapElement(genome, it, prng.randint(0, listSize))
mutations += 1
else:
for it in xrange(int(round(mutations))):
utils.listSwapElement(genome, prng.randint(0, listSize),
prng.randint(0, listSize))
return int(mutations)
def G1DBinaryStringMutatorSwap(genome, **args):
"""
The 1D Binary String Swap Mutator
"""
if args["pmut"] <= 0.0:
return 0
stringLength = len(genome)
mutations = args["pmut"] * (stringLength)
if mutations < 1.0:
mutations = 0
for it in xrange(stringLength):
if utils.randomFlipCoin(args["pmut"]):
utils.listSwapElement(genome, it, prng.randint(0, stringLength))
mutations += 1
else:
for it in xrange(int(round(mutations))):
utils.listSwapElement(genome, prng.randint(0, stringLength), prng.randint(0, stringLength))
return int(mutations)
def G1DBinaryStringMutatorSwap(genome, **args):
"""
The 1D Binary String Swap Mutator
"""
if args["pmut"] <= 0.0:
return 0
stringLength = len(genome)
mutations = args["pmut"] * (stringLength)
if mutations < 1.0:
mutations = 0
for it in xrange(stringLength):
if utils.randomFlipCoin(args["pmut"]):
utils.listSwapElement(genome, it,
prng.randint(0, stringLength))
mutations += 1
else:
for it in xrange(int(round(mutations))):
utils.listSwapElement(genome, prng.randint(0, stringLength),
prng.randint(0, stringLength))
return int(mutations)
