random.triangular

All Samples(20) | Call(16) | Derive(0) | Import(4)

Triangular distribution.

Continuous distribution bounded by given lower and upper limits,
and having a given mode value in-between.

http://en.wikipedia.org/wiki/Triangular_distribution

src/s/h/shedskin-HEAD/examples/genetic2.py shedskin(Download)

#!/usr/bin/env python
 
# placed in the public domain by Stavros Korokithakis
 
import time
import copy
from random import randrange, randint, seed, random, choice, triangular

        iters = int(Pool.population_size * 0.6)
        for counter in range(0, iters, 2):
            # Perform rank roulette selection.
            father = self.population[int(triangular(0, iters, 0))]
            mother = self.population[int(triangular(0, iters, 0))]
            children = self.crossover(father, mother)
            children[0].mutate()

src/m/y/mysql.integra.dbfiller-HEAD/simulation.py mysql.integra.dbfiller(Download)

import calendar
import datetime
from datetime import datetime, timedelta, date
from random import randint, gauss, triangular
import MySQLdb
from helpers.XMLparsers import *
from helpers import *

    def __addUserHasOperation (self, user, day, shift) :
        """Metoda dodająca do bazy log operacji użytkownika w ciągu jednej zmiany."""
 
        cur = self.__connection.cursor()
        # wyznaczamy czas pierwszej operacji (początek zmiany + od -30 do 60 min (rozkład trójkątny(-30, 60, 0) ) )
        latetime = timedelta(seconds=triangular(-30*60,60*60, 0) ) #czas spóznienia
        starttime = datetime(day.year, day.month, day.day, SHIFTS[shift -1][0]) + latetime

src/p/g/pgaf-HEAD/trunk/genetics/population.py pgaf(Download)

from copy import deepcopy
from genetics.creature import creature
from genetics.gene import gene
from random import triangular
from genetics.reproduction import asex_gauss, asex_uniform, sex_gauss
 
class Population:

  def get(self):
    """Get a creature [to reproduce], weighted towards higher fitness"""
    if len(self.all) < self.pool:
      return asex_uniform(self.all[0])
 
    with self.pad:
      father = self.all[int(triangular(0, self.pool-1, 0))]

src/p/g/pgaf-HEAD/genetics/population.py pgaf(Download)

from copy import deepcopy
from genetics.creature import creature
from genetics.gene import gene
from random import triangular
from genetics.reproduction import asex_gauss, asex_uniform, sex_gauss
 
class Population:

  def get(self):
    """Get a creature [to reproduce], weighted towards higher fitness"""
    if len(self.all) < self.pool:
      return asex_uniform(self.all[0])
 
    with self.pad:
      father = self.all[int(triangular(0, self.pool-1, 0))]