def peak_ratio(peaks, i, j):
    """Compute the ratio of the values of the ith and jth largest peaks."""
    if len(peaks) > i and len(peaks) > j:
        return peaks[j][1] / peaks[i][1]
    else:
        return None
dataset/ETHPy150Open cesium-ml/cesium/cesium/obs_feature_tools.py/peak_ratio/swapped operands of `/`