anomalous_indices not sliced correctly if only one value> crit_value

[joeybordon]

for curr in range(max_anomalies):
    
    test_idx, test_val = calculate_test_statistic(ts, hybrid=hybrid)
    critical_val = calculate_critical_value(len(ts) - curr, alpha)
    if test_val > critical_val:
        num_outliers = curr
    test_statistics.append(test_idx)
    ts[test_idx] = np.ma.masked  # Mask this index so that we don't consider it in subsequent ESD tests.
**anomalous_indices = test_statistics[:num_outliers + 1] if num_outliers > 0 else []**

setting num_outliers to curr failed for me because my only outlier was in the first iteration so it was set to 0 which didn't meet the if statement

I think this should work anomalous_indices = test_statistics[:num_outliers + 1] if len(test_statistics)>0 else []