pyfolio/utils.py
def clip_returns_to_benchmark(rets, benchmark_rets):
    """
    Drop entries from rets so that the start and end dates of rets match those
    of benchmark_rets.

    Parameters
    ----------
    rets : pd.Series
        Daily returns of the strategy, noncumulative.
         - See pf.tears.create_full_tear_sheet for more details

    benchmark_rets : pd.Series
        Daily returns of the benchmark, noncumulative.

    Returns
    -------
    clipped_rets : pd.Series
        Daily noncumulative returns with index clipped to match that of
        benchmark returns.
    """

    if (rets.index[0] < benchmark_rets.index[0]) \
            or (rets.index[-1] > benchmark_rets.index[-1]):
        clipped_rets = rets[benchmark_rets.index]
    else:
        clipped_rets = rets

    return clipped_rets
def clip_returns_to_benchmark(rets, benchmark_rets):
    """
    Drop entries from rets so that the start and end dates of rets match those
    of benchmark_rets.

    Parameters
    ----------
    rets : pd.Series
        Daily returns of the strategy, noncumulative.
         - See pf.tears.create_full_tear_sheet for more details

    benchmark_rets : pd.Series
        Daily returns of the benchmark, noncumulative.

    Returns
    -------
    clipped_rets : pd.Series
        Daily noncumulative returns with index clipped to match that of
        benchmark returns.
    """

    if (rets.index[0] < benchmark_rets.index[0]) \
            or (rets.index[-1] > benchmark_rets.index[-1]):
        clipped_rets = rets[benchmark_rets.index]
    else:
        clipped_rets = rets

    return clipped_rets
def clip_returns_to_benchmark ( rets , benchmark_rets ) : if ( rets . index [ 0 ] < benchmark_rets . index [ 0 ] ) or ( rets . index [ - 1 ] > benchmark_rets . index [ - 1 ] ) : clipped_rets = rets [ benchmark_rets . index ] else : clipped_rets = rets return clipped_rets
Drop entries from rets so that the start and end dates of rets match those
    of benchmark_rets.

    Parameters
    ----------
    rets : pd.Series
        Daily returns of the strategy, noncumulative.
         - See pf.tears.create_full_tear_sheet for more details

    benchmark_rets : pd.Series
        Daily returns of the benchmark, noncumulative.

    Returns
    -------
    clipped_rets : pd.Series
        Daily noncumulative returns with index clipped to match that of
        benchmark returns.
Drop entries from rets so that the start and end dates of rets match those of benchmark_rets .