#! /usr/bin/env python

from openturns import *

TESTPREAMBLE()
RandomGenerator().SetSeed(0)

try :


    # Tmin , time step and step number for TimeGrid
    Tmin = 0.0
    deltaT = 1.0
    N = 11
    timeGrid = RegularGrid(Tmin, deltaT, N)

    # Fixing the distribution for the RandomWalk
    dist = Distribution(Uniform())
    print "dist = " , dist
    origin = NumericalPoint(dist.getDimension())

    # Building a random walk
    process = RandomWalk(origin, dist)

    # print the process
    process.setTimeGrid(timeGrid)
    print "process = " , process

    # Get a realization of the process
    timeSerie = process.getRealization()
    print "timeSerie = " , timeSerie

    # Some steps further
    stepNumber = 4
    print "One future=", process.getFuture(stepNumber)
    size = 3
    print "Some futures=", process.getFuture(stepNumber, size)

except :
    import sys
    print "t_RandomWalk_std.py", sys.exc_type, sys.exc_value
