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furniture = furniture.groupby('Order Date')['Sales'].sum().reset_index()
print(furniture.head())

输出:

  Order Date     Sales
0 2014-01-06  2573.820
1 2014-01-07    76.728
2 2014-01-10    51.940
3 2014-01-11     9.940
4 2014-01-13   879.939

当我想获得每月的销售额平均值时,添加了

y = furniture['Sales'].resample('MS').mean()

输出:

TypeError: Only valid with DatetimeIndex, TimedeltaIndex or PeriodIndex, but got an instance of 'RangeIndex'

我可以理解我的订单日期列不在时间戳格式中。我不知道如何转换它。

有什么想法吗?

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