Unseeded NTAC example
==========================

This example shows how to use NTAC in unseeded mode, with the Flywire dataset.

.. code-block:: python

    import ntac
    from ntac import Ntac, FAFBData
    import os
    from os.path import join
    import numpy as np



    # first download the flywire data we'll need for this example. This will be cached in ~/.ntac/flywire_data
    ntac.download_flywire_data(verbose=True)


    # This is where the data lives:
    base_path = join(os.path.expanduser("~"), ".ntac")


    # now we decide which part of the flywire dataset we want to use:
    side = "left"
    gender = "female"
    area = "ol_intrinsic" #we pick a small area to speed up the example

    data_path = join(base_path,f"flywire_data/dynamic_data/{gender}_brain/{area}")
    edges_file = f"{data_path}/{side}_edges.csv"
    types_file = f"{data_path}/{side}_clusters.csv"

    data = FAFBData(edges_file=edges_file, types_file=types_file)

    #No need to pass in labels, as we will be using the unseeded method
    nt = Ntac(data = data, labels = None, verbose=True)

    #print num unique labels
    print(f"Number of unique labels: {data.unique_labels.shape[0]}")
    nt.solve_unseeded(
        max_k=230
    )

    nt.map_partition_to_gt_labels(data.labels)
    partition = nt.get_partition()
    metrics = data.get_metrics(partition, np.array(range(data.n)), data.labels)
    print(f"Accuracy: {metrics['acc']:.3f} ARI: {metrics['ari']:.3f}", f"Weighted F1: {metrics['f1']:.3f}")