Exemple #1
0
    def test_recomb(self):
        """
        Investigate the fact that some recombinations are not visible
        """

        k = 3
        n = 1e4
        rho = 1.5e-8 * 20
        mu = 2.5e-8
        length = 1000
        arg = arglib.sample_arg(k, n, rho, start=0, end=length)

        times = arghmm.get_time_points(10)
        arghmm.discretize_arg(arg, times)
        arg.set_ancestral()
        arg.prune()

        recombs = arglib.get_recomb_pos(arg)

        # find recombs by walking
        recombs2 = []
        i = 0
        while True:
            tree = arg.get_marginal_tree(i - .5)
            recomb = arghmm.find_tree_next_recomb(tree, i + 1, tree=True)
            if recomb:
                recombs2.append(recomb.pos)
                i = recomb.pos
            else:
                break

        # these are suppose to differ because some recombination occur
        # in the hole of ancestral sequence intervals
        print recombs
        print recombs2

        arglib.write_arg("tmp/b.arg", arg)
Exemple #2
0
    def test_recomb(self):
        """
        Investigate the fact that some recombinations are not visible
        """

        k = 3
        n = 1e4
        rho = 1.5e-8 * 20
        mu = 2.5e-8
        length = 1000
        arg = arglib.sample_arg(k, n, rho, start=0, end=length)

        times = arghmm.get_time_points(10)
        arghmm.discretize_arg(arg, times)
        arg.set_ancestral()
        arg.prune()

        recombs = arglib.get_recomb_pos(arg)

        # find recombs by walking
        recombs2 = []
        i = 0
        while True:
            tree = arg.get_marginal_tree(i-.5)
            recomb = arghmm.find_tree_next_recomb(tree, i+1, tree=True)
            if recomb:
                recombs2.append(recomb.pos)
                i = recomb.pos
            else:
                break

        # these are suppose to differ because some recombination occur
        # in the hole of ancestral sequence intervals
        print recombs
        print recombs2

        arglib.write_arg("tmp/b.arg", arg)
Exemple #3
0
    #arg2.set_ancestral()
    #arg2.prune()


    # load model
    mu = 2.5e-8
    rho = 1.5e-8
    new_name = "n4"
    model = arghmm.ArgHmm(arg2, seqs, new_name=new_name, times=times,
                          rho=rho, mu=mu)

    
    pos = 9910
    tree = arg2.get_marginal_tree(pos-.5)
    last_tree = arg2.get_marginal_tree(pos-1-.5)
    recomb = arghmm.find_tree_next_recomb(arg2, pos - 1)
    states1 = model.states[pos-1]
    states2 = model.states[pos]
    model.check_local_tree(pos)
    
    mat = arghmm.calc_transition_probs_switch(
        tree, last_tree, recomb.name,
        states1, states2,
        model.nlineages, model.times,

        model.time_steps, model.popsizes, model.rho)

    #pos2 = 7000
    #n = model.get_num_states(pos2)
    #mat2 = [[model.prob_transition(pos2-1, i, pos2, j)
    #         for j in range(n)] for i in range(n)]
Exemple #4
0
    # load model
    mu = 2.5e-8
    rho = 1.5e-8
    new_name = "n4"
    model = arghmm.ArgHmm(arg2,
                          seqs,
                          new_name=new_name,
                          times=times,
                          rho=rho,
                          mu=mu)

    pos = 9910
    tree = arg2.get_marginal_tree(pos - .5)
    last_tree = arg2.get_marginal_tree(pos - 1 - .5)
    recomb = arghmm.find_tree_next_recomb(arg2, pos - 1)
    states1 = model.states[pos - 1]
    states2 = model.states[pos]
    model.check_local_tree(pos)

    mat = arghmm.calc_transition_probs_switch(tree, last_tree, recomb.name,
                                              states1, states2,
                                              model.nlineages, model.times,
                                              model.time_steps, model.popsizes,
                                              model.rho)

    #pos2 = 7000
    #n = model.get_num_states(pos2)
    #mat2 = [[model.prob_transition(pos2-1, i, pos2, j)
    #         for j in range(n)] for i in range(n)]