def calcinds(data, threshold, ignoret=None):
    """ Find indexes for data above (or below) given threshold. """

    inds = []
    for i in range(len(data['time'])):
        snr = data['snrs'][i]
        time = data['time'][i]
        if (threshold >= 0 and snr > threshold):
            if ignoret:
                incl = [t0 for (t0, t1) in ignoret if np.round(time).astype(int) in range(t0,t1)]
                logger.debug('{} {} {} {}'.format(np.round(time).astype(int), t0, t1, incl))
                if not incl:
                    inds.append(i)
            else:
                inds.append(i)
        elif threshold < 0 and snr < threshold:
            if ignoret:
                incl = [t0 for (t0, t1) in ignoret if np.round(time).astype(int) in range(t0,t1)]
                logger.debug('{} {} {} {}'.format(np.round(time).astype(int), t0, t1, incl))
                if not incl:
                    inds.append(i)
            else:
                inds.append(i)

    return inds