小编Ton*_*Ton的帖子

我试图弄清楚每分钟列出"f"列中的条目的次数.

    import pandas as pd
    import datetime as dt

    f= ['f0001',
        'f0001',
        'f0001',
        'f0001',
        'f0020',
        'f0008',
        'f0001',
        'f0005',
        'f3203',
        'f0002',
        'f0002',
        'f0001',
        'f0201',
        'f0001',
        'f0439',
        'f0233',
        'f0008',
        'f0003',
        'f0009',
        'f0005']


    dates = ['20130101100103', '20130101100110',
               '20130101100125', '20130101100133',
               '20130101100100', '20130101100200',
               '20130101100200', '20130101100200',
               '20130101100200', '20130101100200',
               '20130101100200', '20130101100300',
               '20130101100300', '20130101100300',
               '20130101100300', '20130101100400',
               '20130101100400', '20130101100400',
               '20130101100400', '20130101100400']


    d = {'date':  dates}
    data = pd.DataFrame(d)
    data['user'] = f

    data.date = data.date.apply(str)
    data.date = data.date.apply(lambda x: 
    dt.datetime.strptime(x,'%Y%m%d%H%M%S'))

    s = data.groupby([data.date.map(lambda t: t.minute)]).count()

但到目前为止我所得到的只是下面的内容

s

    date    user
date …