Example #1
0
def compare_nb_waveforms():
    if os.path.exists('test_catalogueconstructor'):
        shutil.rmtree('test_catalogueconstructor')

    dataio = DataIO(dirname='test_catalogueconstructor')
    localdir, filenames, params = download_dataset(name='olfactory_bulb')
    dataio.set_data_source(type='RawData', filenames=filenames, **params)
    dataio.add_one_channel_group(channels=range(14), chan_grp=0)

    cc = CatalogueConstructor(dataio=dataio)

    cc.set_global_params(
        chunksize=1024,
        memory_mode='ram',
        mode='dense',
        n_jobs=1,
        #~ adjacency_radius_um=None,
    )

    cc.set_preprocessor_params(
        #signal preprocessor
        highpass_freq=300,
        lowpass_freq=5000.,
        common_ref_removal=False,
        smooth_size=0,
        lostfront_chunksize=None)

    cc.set_peak_detector_params(
        #peak detector
        method='global',
        engine='numpy',
        peak_sign='-',
        relative_threshold=7,
        peak_span_ms=0.5,
        #~ adjacency_radius_um=None,
    )

    t1 = time.perf_counter()
    cc.estimate_signals_noise(seg_num=0, duration=10.)
    t2 = time.perf_counter()
    print('estimate_signals_noise', t2 - t1)

    t1 = time.perf_counter()
    cc.run_signalprocessor()
    t2 = time.perf_counter()
    print('run_signalprocessor', t2 - t1)

    print(cc)

    fig, axs = plt.subplots(nrows=2)

    cc.set_waveform_extractor_params(wf_left_ms=-2.0, wf_right_ms=3.0)

    t1 = time.perf_counter()
    cc.sample_some_peaks(mode='rand', nb_max=5000)
    t2 = time.perf_counter()
    print('sample_some_peaks', t2 - t1)

    colors = ['r', 'g', 'b', 'y']
    for i, nb_max in enumerate([100, 500, 1000, 2000]):

        cc.sample_some_peaks(mode='rand', nb_max=nb_max)
        #~ catalogueconstructor.extract_some_waveforms(wf_left_ms=-2.0, wf_right_ms=3.0,  nb_max=nb_max)
        #~ print(catalogueconstructor.some_waveforms.shape)
        t1 = time.perf_counter()
        wf = cc.get_some_waveforms()
        t2 = time.perf_counter()
        print('get_some_waveforms', nb_max, t2 - t1)

        #~ wf = catalogueconstructor.some_waveforms
        wf = wf.swapaxes(1, 2).reshape(wf.shape[0], -1)
        axs[0].plot(np.median(wf, axis=0),
                    color=colors[i],
                    label='nb_max {}'.format(nb_max))

        axs[1].plot(np.mean(wf, axis=0),
                    color=colors[i],
                    label='nb_max {}'.format(nb_max))

    axs[0].legend()
    axs[0].set_title('median')
    axs[1].set_title('mean')
    plt.show()
Example #2
0
def test_catalogue_constructor():
    if os.path.exists('test_catalogueconstructor'):
        shutil.rmtree('test_catalogueconstructor')

    dataio = DataIO(dirname='test_catalogueconstructor')
    localdir, filenames, params = download_dataset(name='olfactory_bulb')
    #~ localdir, filenames, params = download_dataset(name='locust')
    dataio.set_data_source(type='RawData', filenames=filenames, **params)

    channels = range(14)
    #~ channels=list(range(4))
    dataio.add_one_channel_group(channels=channels, chan_grp=0)

    cc = CatalogueConstructor(dataio=dataio)

    for memory_mode in ['ram', 'memmap']:
        for mode in ['dense', 'sparse']:

            print('*' * 5)
            print('memory_mode', memory_mode, 'mode', mode)

            if mode == 'dense':
                peak_engine = 'numpy'
                peak_method = 'global'
                adjacency_radius_um = None
            elif mode == 'sparse':
                peak_engine = 'numpy'
                peak_method = 'geometrical'
                adjacency_radius_um = 450.

            cc.set_global_params(
                chunksize=1024,
                memory_mode=memory_mode,
                mode=mode,
                n_jobs=1,
                #~ adjacency_radius_um=adjacency_radius_um,
            )

            cc.set_preprocessor_params(
                #signal preprocessor
                highpass_freq=300,
                lowpass_freq=5000.,
                common_ref_removal=False,
                smooth_size=0,
                lostfront_chunksize=None)

            cc.set_peak_detector_params(
                #peak detector
                method=peak_method,
                engine=peak_engine,
                peak_sign='-',
                relative_threshold=7,
                peak_span_ms=0.5,
                adjacency_radius_um=adjacency_radius_um,
            )

            t1 = time.perf_counter()
            cc.estimate_signals_noise(seg_num=0, duration=10.)
            t2 = time.perf_counter()
            print('estimate_signals_noise', t2 - t1)

            t1 = time.perf_counter()
            cc.run_signalprocessor(duration=10., detect_peak=True)
            t2 = time.perf_counter()
            print('run_signalprocessor_loop', t2 - t1)

            for seg_num in range(dataio.nb_segment):
                mask = cc.all_peaks['segment'] == seg_num
                print('seg_num', seg_num, 'nb peak', np.sum(mask))

            # redetect peak
            cc.re_detect_peak(method=peak_method,
                              engine=peak_engine,
                              peak_sign='-',
                              relative_threshold=5,
                              peak_span_ms=0.7,
                              adjacency_radius_um=adjacency_radius_um)
            for seg_num in range(dataio.nb_segment):
                mask = cc.all_peaks['segment'] == seg_num
                print('seg_num', seg_num, 'nb peak', np.sum(mask))

            cc.set_waveform_extractor_params(n_left=-25, n_right=40)

            t1 = time.perf_counter()
            cc.clean_peaks(alien_value_threshold=100,
                           mode='extremum_amplitude')
            t2 = time.perf_counter()
            print('clean_peaks extremum_amplitude', t2 - t1)

            t1 = time.perf_counter()
            cc.clean_peaks(alien_value_threshold=100, mode='full_waveform')
            t2 = time.perf_counter()
            print('clean_peaks full_waveforms', t2 - t1)

            t1 = time.perf_counter()
            cc.sample_some_peaks(mode='rand', nb_max=5000)
            t2 = time.perf_counter()
            print('sample_some_peaks', t2 - t1)

            print(cc)

            #extract_some_noise
            t1 = time.perf_counter()
            cc.extract_some_noise(nb_snippet=400)
            t2 = time.perf_counter()
            print('extract_some_noise', t2 - t1)

            if mode == 'dense':
                # PCA
                t1 = time.perf_counter()
                cc.extract_some_features(method='global_pca', n_components=12)
                t2 = time.perf_counter()
                print('project pca', t2 - t1)

                # cluster
                t1 = time.perf_counter()
                cc.find_clusters(method='kmeans', n_clusters=11)
                t2 = time.perf_counter()
                print('find_clusters', t2 - t1)

            elif mode == 'sparse':

                # PCA
                t1 = time.perf_counter()
                cc.extract_some_features(method='pca_by_channel',
                                         n_components_by_channel=3)
                t2 = time.perf_counter()
                print('project pca', t2 - t1)

                # cluster
                t1 = time.perf_counter()
                cc.find_clusters(method='pruningshears')
                t2 = time.perf_counter()
                print('find_clusters', t2 - t1)

            print(cc)

        t1 = time.perf_counter()
        cc.auto_split_cluster()
        t2 = time.perf_counter()
        print('auto_split_cluster', t2 - t1)

        t1 = time.perf_counter()
        cc.trash_not_aligned()
        t2 = time.perf_counter()
        print('trash_not_aligned', t2 - t1)

        t1 = time.perf_counter()
        cc.auto_merge_cluster()
        t2 = time.perf_counter()
        print('auto_merge_cluster', t2 - t1)

        t1 = time.perf_counter()
        cc.trash_low_extremum()
        t2 = time.perf_counter()
        print('trash_low_extremum', t2 - t1)

        t1 = time.perf_counter()
        cc.trash_small_cluster()
        t2 = time.perf_counter()
        print('trash_small_cluster', t2 - t1)