def METHOD_NAME(self):
    """Make the featureCounts assignment rates plot"""
    headers = OrderedDict()
    for h in self.featurecounts_keys:
        nice_name = h.replace("Unassigned_", "Unassigned: ").replace("_", " ")
        nice_name = re.sub(r"([a-z])([A-Z])", "\g<1> \g<2>", nice_name)
        headers[h] = {"name": nice_name}
    # Config for the plot
    config = {
        "id": "featureCounts_assignment_plot",
        "title": "featureCounts: Assignments",
        "ylab": "# Reads",
        "cpswitch_counts_label": "Number of Reads",
    }
    return bargraph.plot(self.featurecounts_data, headers, config)