在不使用索引的情况下替换pandas DataFrame中选定单元格的值

在不使用索引的情况下替换pandas DataFrame中选定单元格的值

有很多方法可以做到这一点

1个

In [7]: d.sales[d.sales==24] = 100In [8]: dOut[8]:    day     flavour  sales  year0  sat  strawberry     10  20081  sun  strawberry     12  20082  sat      banana     22  20083  sun      banana     23  20084  sat  strawberry     11  20095  sun  strawberry     13  20096  sat      banana     23  20097  sun      banana    100  2009

2

In [26]: d.loc[d.sales == 12, 'sales'] = 99In [27]: dOut[27]:    day     flavour  sales  year0  sat  strawberry     10  20081  sun  strawberry     99  20082  sat      banana     22  20083  sun      banana     23  20084  sat  strawberry     11  20095  sun  strawberry     13  20096  sat      banana     23  20097  sun      banana    100  2009

3

In [28]: d.sales = d.sales.replace(23, 24)In [29]: dOut[29]:    day     flavour  sales  year0  sat  strawberry     10  20081  sun  strawberry     99  20082  sat      banana     22  20083  sun      banana     24  20084  sat  strawberry     11  20095  sun  strawberry     13  20096  sat      banana     24  20097  sun      banana    100  2009