def test_add_conditional_manually():
    """Enforce the conditioning on additional variables."""
    settings = {
        'cmi_estimator': 'JidtKraskovCMI',
        'max_lag': 5,
        'n_perm_max_stat': 21,
        'n_perm_min_stat': 21,
        'n_perm_mi': 21
    }
    data = Data()
    data.generate_mute_data(10, 3)
    ais = ActiveInformationStorage()

    # Add a conditional with a lag bigger than the max_lag requested above
    settings['add_conditionals'] = (8, 0)
    with pytest.raises(IndexError):
        ais.analyse_single_process(settings=settings, data=data, process=0)

    # Add valid conditionals and test if they were added
    settings['add_conditionals'] = [(0, 1), (1, 3)]
    ais._initialise(settings, data, 0)
    # Get list of conditionals after intialisation and convert absolute samples
    # back to lags for comparison.
    cond_list = ais._idx_to_lag(ais.selected_vars_full)
    assert settings['add_conditionals'][0] in cond_list, (
        'First enforced conditional is missing from results.')
    assert settings['add_conditionals'][1] in cond_list, (
        'Second enforced conditional is missing from results.')
def test_add_conditional_manually():
    """Enforce the conditioning on additional variables."""
    settings = {'cmi_estimator': 'JidtKraskovCMI',
                'max_lag': 5,
                'n_perm_max_stat': 21,
                'n_perm_min_stat': 21,
                'n_perm_mi': 21}
    data = Data()
    data.generate_mute_data(10, 3)
    ais = ActiveInformationStorage()

    # Add a conditional with a lag bigger than the max_lag requested above
    settings['add_conditionals'] = (8, 0)
    with pytest.raises(IndexError):
        ais.analyse_single_process(settings=settings, data=data, process=0)

    # Add valid conditionals and test if they were added
    settings['add_conditionals'] = [(0, 1), (1, 3)]
    ais._initialise(settings, data, 0)
    # Get list of conditionals after intialisation and convert absolute samples
    # back to lags for comparison.
    cond_list = ais._idx_to_lag(ais.selected_vars_full)
    assert settings['add_conditionals'][0] in cond_list, (
        'First enforced conditional is missing from results.')
    assert settings['add_conditionals'][1] in cond_list, (
        'Second enforced conditional is missing from results.')
示例#3
0
def test_ais_fdr():
    settings = {'n_perm_max_seq': 1000, 'n_perm_mi': 1000}
    process_0 = {
        'selected_vars': [(0, 1), (0, 2), (0, 3)],
        'ais_pval': 0.0001,
        'ais_sign': True}
    process_1 = {
        'selected_vars': [(1, 0), (1, 1), (1, 2)],
        'ais_pval': 0.031,
        'ais_sign': True}
    process_2 = {
        'selected_vars': [],
        'ais_pval': 0.41,
        'ais_sign': False}
    res_1 = ResultsSingleProcessAnalysis(
        n_nodes=3, n_realisations=1000, normalised=True)
    res_1._add_single_result(process=0, settings=settings, results=process_0)
    res_1._add_single_result(process=1, settings=settings, results=process_1)
    res_2 = ResultsSingleProcessAnalysis(
        n_nodes=3, n_realisations=1000, normalised=True)
    res_2._add_single_result(process=2, settings=settings, results=process_2)

    settings = {
        'cmi_estimator': 'JidtKraskovCMI',
        'alpha_fdr': 0.05,
        'max_lag': 3}
    data = Data()
    data.generate_mute_data(n_samples=100, n_replications=3)
    analysis_setup = ActiveInformationStorage()
    analysis_setup._initialise(settings=settings, data=data, process=1)
    res_pruned = stats.ais_fdr(settings, res_1, res_2)
    assert (not res_pruned._single_process[2].selected_vars_sources), (
        'Process 2 has not been pruned from results.')

    alpha_fdr = res_pruned.settings.alpha_fdr
    for k in res_pruned.processes_analysed:
        if not res_pruned._single_process[k]['ais_sign']:
            assert (res_pruned._single_process[k]['ais_pval'] > alpha_fdr), (
                'P-value of non-sign. AIS is not 1.')
            assert (not res_pruned._single_process[k]['selected_vars']), (
                'List of significant past variables is not empty')
        else:
            assert (res_pruned._single_process[k]['ais_pval'] < 1), (
                'P-value of sign. AIS is not smaller 1.')
            assert (res_pruned._single_process[k]['selected_vars']), (
                'List of significant past variables is empty')

    # Test function call for single result
    res_pruned = stats.ais_fdr(settings, res_1)
    print('successful call on single result dict.')

    # Test None result for insufficient no. permutations, no FDR-corrected
    # results (the results class throws an error if no FDR-corrected results
    # exist).
    res_1.settings['n_perm_mi'] = 2
    res_2.settings['n_perm_mi'] = 2
    res_pruned = stats.ais_fdr(settings, res_1, res_2)
    with pytest.raises(RuntimeError):
        res_pruned.get_significant_processes(fdr=True)