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  • 时间序列函数resamlpe详解

    resample与groupby的区别:
    resample:在给定的时间单位内重取样
    groupby:对给定的数据条目进行统计

    函数原型:
    DataFrame.resample(rule, how=None, axis=0, fill_method=None, closed=None, label=None, convention='start', kind=None, loffset=None, limit=None, base=0)
    其中,参数how已经废弃了

    rule:

    常用的几个:A year
    M month
    W week
    D day
    H hour
    T minute
    S second

    全部的:

    B   business day frequency

    C     custom business day frequency (experimental)

    D   calendar day frequency

    W  weekly frequency

    M   month end frequency

    BM   business month end frequency

    CBM custom business month end frequency

    MS    month start frequency

    BMS  business month start frequency

    CBMS  custom business month start frequency

    Q     quarter end frequency

    BQ   business quarter endfrequency

    QS   quarter start frequency

    BQS    business quarter start frequency

    A year   end frequency

    BA         business year end frequency

    AS   year start frequency

    BAS       business year start frequency

    BH   business hour frequency

    H      hourly frequency

    T      minutely frequency

    S      secondly frequency

    L    milliseonds

    U      microseconds

    N      nanoseconds

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  • 原文地址:https://www.cnblogs.com/lvpengbo/p/8662642.html
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