/usr/lib/python2.7/dist-packages/pyevolve/G2DBinaryString.py is in python-pyevolve 0.6~rc1+svn398+dfsg-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | """
:mod:`G2DBinaryString` -- the classical binary string chromosome
=====================================================================
This representation is a 2D Binary String, the string looks like
this matrix:
00101101010
00100011010
00101101010
10100101000
Default Parameters
-------------------------------------------------------------
*Initializator*
:func:`Initializators.G2DBinaryStringInitializator`
The Binatry String Initializator for G2DBinaryString
*Mutator*
:func:`Mutators.G2DBinaryStringMutatorFlip`
The Flip Mutator for G2DBinaryString
*Crossover*
:func:`Crossovers.G2DBinaryStringXSinglePoint`
The Single Point Crossover for G2DBinaryString
.. versionadded:: 0.6
Added the module :mod:`G2DBinaryString`
Class
-------------------------------------------------------------
"""
from GenomeBase import GenomeBase
import Consts
import Util
class G2DBinaryString(GenomeBase):
""" G3DBinaryString Class - The 2D Binary String chromosome
Inheritance diagram for :class:`G2DBinaryString.G2DBinaryString`:
.. inheritance-diagram:: G2DBinaryString.G2DBinaryString
Example:
>>> genome = G2DBinaryString.G2DBinaryString(10, 12)
:param height: the number of rows
:param width: the number of columns
"""
evaluator = None
""" This is the :term:`evaluation function` slot, you can add
a function with the *set* method: ::
genome.evaluator.set(eval_func)
"""
initializator = None
""" This is the initialization function of the genome, you
can change the default initializator using the function slot: ::
genome.initializator.set(Initializators.G2DBinaryStringInitializator)
In this example, the initializator :func:`Initializators.G1DBinaryStringInitializator`
will be used to create the initial population.
"""
mutator = None
""" This is the mutator function slot, you can change the default
mutator using the slot *set* function: ::
genome.mutator.set(Mutators.G2DBinaryStringMutatorSwap)
"""
crossover = None
""" This is the reproduction function slot, the crossover. You
can change the default crossover method using: ::
genome.crossover.set(Crossovers.G2DBinaryStringXUniform)
"""
def __init__(self, height, width):
""" The initializator of G2DBinaryString representation,
height and width must be specified """
GenomeBase.__init__(self)
self.height = height
self.width = width
self.genomeString = [None]*height
for i in xrange(height):
self.genomeString[i] = [None] * width
self.initializator.set(Consts.CDefG2DBinaryStringInit)
self.mutator.set(Consts.CDefG2DBinaryStringMutator)
self.crossover.set(Consts.CDefG2DBinaryStringCrossover)
def __eq__(self, other):
""" Compares one chromosome with another """
cond1 = (self.genomeString == other.genomeString)
cond2 = (self.height == other.height)
cond3 = (self.width == other.width)
return True if cond1 and cond2 and cond3 else False
def getItem(self, x, y):
""" Return the specified gene of List
Example:
>>> genome.getItem(3, 1)
0
:param x: the x index, the column
:param y: the y index, the row
:rtype: the item at x,y position
"""
return self.genomeString[x][y]
def setItem(self, x, y, value):
""" Set the specified gene of List
Example:
>>> genome.setItem(3, 1, 0)
:param x: the x index, the column
:param y: the y index, the row
:param value: the value (integers 0 or 1)
"""
if value not in [0,1]:
Util.raiseException("The item value must be 0 or 1 in the G2DBinaryString chromosome", ValueError)
self.genomeString[x][y] = value
def __getitem__(self, key):
""" Return the specified gene of List """
return self.genomeString[key]
def __iter__(self):
""" Iterator support to the list """
return iter(self.genomeString)
def getHeight(self):
""" Return the height (lines) of the List """
return self.height
def getWidth(self):
""" Return the width (lines) of the List """
return self.width
def getSize(self):
""" Returns a tuple (height, widht)
Example:
>>> genome.getSize()
(3, 2)
"""
return (self.getHeight(), self.getWidth())
def __repr__(self):
""" Return a string representation of Genome """
ret = GenomeBase.__repr__(self)
ret += "- G2DBinaryString\n"
ret += "\tList size:\t %s\n" % (self.getSize(),)
ret += "\tList:\n"
for line in self.genomeString:
ret += "\t\t\t"
for item in line:
ret += "[%s] " % (item)
ret += "\n"
ret += "\n"
return ret
def resumeString(self):
""" Returns a resumed string representation of the Genome
"""
ret = ""
for line in self.genomeString:
for item in line:
ret += "[%s] " % (item)
ret += "\n"
return ret
def clearString(self):
""" Remove all genes from Genome """
del self.genomeString[:]
self.genomeString = [None]* self.height
for i in xrange(self.height):
self.genomeString[i] = [None] * self.width
def copy(self, g):
""" Copy genome to 'g'
Example:
>>> genome_origin.copy(genome_destination)
:param g: the destination G2DBinaryString instance
"""
GenomeBase.copy(self, g)
g.height = self.height
g.width = self.width
for i in xrange(self.height):
g.genomeString[i] = self.genomeString[i][:]
def clone(self):
""" Return a new instace copy of the genome
:rtype: the G2DBinaryString clone instance
"""
newcopy = G2DBinaryString(self.height, self.width)
self.copy(newcopy)
return newcopy
|