103_visit_time.py 文件源码

def make(T):
    log_tr = log[log.order_number_rev>T]

    # dow
    dow  = pd.crosstab(log_tr.user_id, log_tr.order_dow).add_prefix('user_dow_freq_')
    dow_ = pd.crosstab(log_tr.user_id, log_tr.order_dow, normalize='index').add_prefix('user_dow_norm_')

    # timezone
    timezone  = pd.crosstab(log_tr.user_id, log_tr.timezone).add_prefix('user_timezone_freq_')
    timezone_ = pd.crosstab(log_tr.user_id, log_tr.timezone, normalize='index').add_prefix('user_timezone_norm_')

    # dow * timezone
    dow_tz  = pd.crosstab(log_tr.user_id, log_tr.dow_tz).add_prefix('user_dow-tz_freq_')
    dow_tz_ = pd.crosstab(log_tr.user_id, log_tr.dow_tz, normalize='index').add_prefix('user_dow-tz_norm_')

    tab = pd.concat([dow, dow_, timezone, timezone_, dow_tz, dow_tz_], axis=1)

    tab.reset_index().to_pickle('../feature/trainT-{}/f103_user.p'.format(T))