我有一个Python pandas DataFrame rpt:
Python pandas DataFrame rpt
rpt <class 'pandas.core.frame.DataFrame'> MultiIndex: 47518 entries, ('000002', '20120331') to ('603366', '20091231') Data columns: STK_ID 47518 non-null values STK_Name 47518 non-null values RPT_Date 47518 non-null values sales 47518 non-null values
我可以过滤库存编号‘600809’如下的行:rpt[rpt['STK_ID'] == '600809']
rpt[rpt['STK_ID'] == '600809']
<class 'pandas.core.frame.DataFrame'> MultiIndex: 25 entries, ('600809', '20120331') to ('600809', '20060331') Data columns: STK_ID 25 non-null values STK_Name 25 non-null values RPT_Date 25 non-null values sales 25 non-null values
我想将一些股票的所有行汇总在一起,例如[‘600809’,‘600141’,‘600329’]。这意味着我想要这样的语法:
stk_list = ['600809','600141','600329'] rst = rpt[rpt['STK_ID'] in stk_list] # this does not works in pandas
由于大熊猫不接受上述命令,如何实现目标?
使用isin方法。 rpt[rpt['STK_ID'].isin(stk_list)]。
rpt[rpt['STK_ID'].isin(stk_list)]