def test_monte_carlo_group_distances(self):
     """monte_carlo_group_distances should return correct result.
     """
     mc_group_dist_path = self.working_dir+\
         'monte_carlo_group_distances/group_distances_Treatment.xls'
     monte_carlo_group_distances(mapping_file=self.map_file,\
                                 dmatrix_file=self.dmat_file,\
                                 prefs=PREFS,\
                                 dir_prefix=self.working_dir)
     obs_res = open(mc_group_dist_path, 'U').readlines()
     exp_res = MONTE_CARLO_DISTANCES.split('\n')
     for obs, exp in zip(obs_res, exp_res):
         obs_fields = obs.split('\t')
         exp_fields = exp.split('\t')
         #Check first 10 fields should be identical from run to run.
         for i in [0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 13]:
             self.assertEqual(obs_fields[i], exp_fields[i])
 def test_monte_carlo_group_distances(self):
     """monte_carlo_group_distances should return correct result.
     """
     mc_group_dist_path = self.working_dir+\
         'monte_carlo_group_distances/group_distances_Treatment.xls'
     monte_carlo_group_distances(mapping_file=self.map_file,\
                                 dmatrix_file=self.dmat_file,\
                                 prefs=PREFS,\
                                 dir_prefix=self.working_dir)
     obs_res = open(mc_group_dist_path,'U').readlines()
     exp_res = MONTE_CARLO_DISTANCES.split('\n')
     for obs, exp in zip(obs_res, exp_res):
         obs_fields = obs.split('\t')
         exp_fields = exp.split('\t')
         #Check first 10 fields should be identical from run to run.
         for i in [0,1,2,3,5,6,7,8,9,11,13]:
             self.assertEqual(obs_fields[i],exp_fields[i])
Ejemplo n.º 3
0
def main():
    option_parser, opts, args = parse_command_line_parameters(**script_info)

    # Some code for error checking of input args:

    # Check if distance_matrix_file is valid:
    try:
        d_header, d_mat = parse_distmat(open(opts.distance_matrix_file, "U"))
    except:
        option_parser.error(
            "This does not look like a valid distance matrix file.  Please supply a valid distance matrix file using the -d option."
        )

    if not is_symmetric_and_hollow(d_mat):
        option_parser.error("The distance matrix must be symmetric and " "hollow.")

    # Check if map_fname is valid:
    try:
        mapping, m_header, m_comments = parse_mapping_file(open(opts.map_fname, "U"))
    except QiimeParseError:
        option_parser.error(
            "This does not look like a valid metadata mapping file.  Please supply a valid mapping file using the -m option."
        )

    # make sure background_color is valid
    if opts.background_color not in ["black", "white"]:
        option_parser.error(
            "'%s' is not a valid background color.  Please pass in either 'black' or 'white' using the -k option."
            % (opts.background_color)
        )

    # make sure prefs file is valid if it exists
    if opts.prefs_path is not None:
        try:
            prefs_file = open(opts.prefs_path, "U").read()
        except IOError:
            option_parser.error(
                "Provided prefs file, '%s', does not exist.  Please pass in a valid prefs file with the -p option."
                % (opts.prefs_path)
            )

    if opts.prefs_path is not None:
        prefs = parse_prefs_file(prefs_file)
    else:
        prefs = None

    color_prefs, color_data, background_color, label_color, ball_scale, arrow_colors = sample_color_prefs_and_map_data_from_options(
        opts
    )

    # list of labelname, groups, colors, data_colors, data_color_order
    groups_and_colors = list(iter_color_groups(mapping=color_data["map"], prefs=color_prefs))

    # dict mapping labelname to list of: [groups, colors, data_colors,
    # data_color_order]
    field_to_colors = {}
    for color_info in groups_and_colors:
        field_to_colors[color_info[0]] = color_info[1:]

    qiime_dir = get_qiime_project_dir() + "/qiime/support_files/"

    fields = opts.fields
    if fields is not None:
        fields = map(strip, fields.split(","))
        fields = [i.strip('"').strip("'") for i in fields]
    elif prefs is not None:
        fields = prefs.get("FIELDS", None)
    else:
        fields = get_interesting_mapping_fields(mapping, m_header)

    # Check that all provided fields are valid:
    if fields is not None:
        for f in fields:
            if f not in m_header:
                option_parser.error(
                    "The field, %s, is not in the provided mapping file.  Please supply correct fields (using the -f option or providing a 'FIELDS' list in the prefs file) corresponding to fields in mapping file."
                    % (f)
                )

    within_distances, between_distances, dmat = group_distances(
        mapping_file=opts.map_fname,
        dmatrix_file=opts.distance_matrix_file,
        fields=fields,
        dir_prefix=get_random_directory_name(output_dir=opts.dir_path, prefix="distances"),
    )

    if not opts.suppress_html_output:
        # histograms output path
        histograms_path = path.join(opts.dir_path, "histograms")
        try:
            mkdir(histograms_path)
        except OSError:  # raised if dir exists
            pass

        # draw all histograms
        distances_dict, label_to_histogram_filename = draw_all_histograms(
            single_field=within_distances,
            paired_field=between_distances,
            dmat=dmat,
            histogram_dir=histograms_path,
            field_to_color_prefs=field_to_colors,
            background_color=background_color,
        )

        # Get relative path to histogram files.
        label_to_histogram_filename_relative = _make_relative_paths(label_to_histogram_filename, opts.dir_path)

        dm_fname = path.split(opts.distance_matrix_file)[-1]
        basename = path.splitext(dm_fname)[0]
        outfile_name = basename + "_distance_histograms.html"
        make_main_html(
            distances_dict=distances_dict,
            label_to_histogram_filename=label_to_histogram_filename_relative,
            root_outdir=opts.dir_path,
            outfile_name=outfile_name,
            title="Distance Histograms",
        )

        # Handle saving web resources locally.
        # javascript file
        javascript_path = path.join(opts.dir_path, "js")
        try:
            mkdir(javascript_path)
        except OSError:  # raised if dir exists
            pass
        js_out = open(javascript_path + "/histograms.js", "w")
        js_out.write(open(qiime_dir + "js/histograms.js").read())
        js_out.close()

    monte_carlo_iters = opts.monte_carlo_iters
    if monte_carlo_iters > 0:
        # Do Monte Carlo for all fields
        monte_carlo_group_distances(
            mapping_file=opts.map_fname,
            dmatrix_file=opts.distance_matrix_file,
            prefs=prefs,
            dir_prefix=opts.dir_path,
            fields=fields,
            default_iters=monte_carlo_iters,
        )

        # Do Monte Carlo for within and between fields
        monte_carlo_group_distances_within_between(
            single_field=within_distances,
            paired_field=between_distances,
            dmat=dmat,
            dir_prefix=opts.dir_path,
            num_iters=monte_carlo_iters,
        )
def main():
    option_parser, opts, args = parse_command_line_parameters(**script_info)

    #Some code for error checking of input args:

    #Check if distance_matrix_file is valid:
    try:
        d_header, d_mat = parse_distmat(open(opts.distance_matrix_file, 'U'))
    except:
        option_parser.error(
            "This does not look like a valid distance matrix file.  Please supply a valid distance matrix file using the -d option."
        )

    if not is_symmetric_and_hollow(d_mat):
        option_parser.error("The distance matrix must be symmetric and "
                            "hollow.")

    #Check if map_fname is valid:
    try:
        mapping, m_header, m_comments = \
            parse_mapping_file(open(opts.map_fname,'U'))
    except QiimeParseError:
        option_parser.error(
            "This does not look like a valid metadata mapping file.  Please supply a valid mapping file using the -m option."
        )

    #make sure background_color is valid
    if opts.background_color not in ['black', 'white']:
        option_parser.error(
            "'%s' is not a valid background color.  Please pass in either 'black' or 'white' using the -k option."
            % (opts.background_color))

    #make sure prefs file is valid if it exists
    if opts.prefs_path is not None:
        try:
            prefs_file = open(opts.prefs_path, 'U').read()
        except IOError:
            option_parser.error(
                "Provided prefs file, '%s', does not exist.  Please pass in a valid prefs file with the -p option."
                % (opts.prefs_path))

    if opts.prefs_path is not None:
        prefs = parse_prefs_file(prefs_file)
    else:
        prefs = None


    color_prefs, color_data, background_color, label_color, ball_scale,\
     arrow_colors=sample_color_prefs_and_map_data_from_options(opts)

    #list of labelname, groups, colors, data_colors, data_color_order
    groups_and_colors=list(iter_color_groups(mapping=color_data['map'],\
        prefs=color_prefs))

    #dict mapping labelname to list of: [groups, colors, data_colors,
    # data_color_order]
    field_to_colors = {}
    for color_info in groups_and_colors:
        field_to_colors[color_info[0]] = color_info[1:]

    qiime_dir = get_qiime_project_dir() + '/qiime/support_files/'

    fields = opts.fields
    if fields is not None:
        fields = map(strip, fields.split(','))
        fields = [i.strip('"').strip("'") for i in fields]
    elif prefs is not None:
        fields = prefs.get('FIELDS', None)
    else:
        fields = get_interesting_mapping_fields(mapping, m_header)

    #Check that all provided fields are valid:
    if fields is not None:
        for f in fields:
            if f not in m_header:
                option_parser.error(
                    "The field, %s, is not in the provided mapping file.  Please supply correct fields (using the -f option or providing a 'FIELDS' list in the prefs file) corresponding to fields in mapping file."
                    % (f))

    within_distances, between_distances, dmat = \
        group_distances(mapping_file=opts.map_fname,\
        dmatrix_file=opts.distance_matrix_file,\
        fields=fields,\
        dir_prefix=get_random_directory_name(output_dir=opts.dir_path,\
            prefix='distances'))

    if not opts.suppress_html_output:
        #histograms output path
        histograms_path = path.join(opts.dir_path, 'histograms')
        try:
            mkdir(histograms_path)
        except OSError:  #raised if dir exists
            pass

        #draw all histograms
        distances_dict, label_to_histogram_filename = \
            draw_all_histograms(single_field=within_distances, \
                paired_field=between_distances, \
                dmat=dmat,\
                histogram_dir=histograms_path,\
                field_to_color_prefs=field_to_colors,\
                background_color=background_color)

        #Get relative path to histogram files.
        label_to_histogram_filename_relative = \
            _make_relative_paths(label_to_histogram_filename, opts.dir_path)

        dm_fname = path.split(opts.distance_matrix_file)[-1]
        basename = path.splitext(dm_fname)[0]
        outfile_name = basename + '_distance_histograms.html'
        make_main_html(distances_dict=distances_dict,\
            label_to_histogram_filename=label_to_histogram_filename_relative,\
            root_outdir=opts.dir_path, \
            outfile_name = outfile_name, \
            title='Distance Histograms')

        #Handle saving web resources locally.
        #javascript file
        javascript_path = path.join(opts.dir_path, 'js')
        try:
            mkdir(javascript_path)
        except OSError:  #raised if dir exists
            pass
        js_out = open(javascript_path + '/histograms.js', 'w')
        js_out.write(open(qiime_dir + 'js/histograms.js').read())
        js_out.close()

    monte_carlo_iters = opts.monte_carlo_iters
    if monte_carlo_iters > 0:
        #Do Monte Carlo for all fields
        monte_carlo_group_distances(mapping_file=opts.map_fname,\
            dmatrix_file=opts.distance_matrix_file,\
            prefs=prefs, \
            dir_prefix = opts.dir_path,\
            fields=fields,\
            default_iters=monte_carlo_iters)

        #Do Monte Carlo for within and between fields
        monte_carlo_group_distances_within_between(\
            single_field=within_distances,\
            paired_field=between_distances, dmat=dmat, \
            dir_prefix = opts.dir_path,\
            num_iters=monte_carlo_iters)