如何解决基于月初的python pandas中的每周数据操作
我在 xls 中有每月数据,我将这些数据上采样为每周平均值。现在我需要一个条件/函数来包含上个月的上周,如果 1 号落在星期一或星期二并重新平均当月。我使用的是 pandas resample()。
样本输入:每月数据
| Date | Store | Fruit | Quantity |
|:---------:|:--------:|:-------:|:----------:|
|Jan 2021 | A-Mart | Apple | 70 |
|Feb 2021 | A-Mart | Apple | 60 |
|Mar 2021 | A-Mart | Apple | 90 |
|Apr 2021 | A-Mart | Apple | 40 |
|Jan 2021 | A-Mart | Banana | 40 |
|Feb 2021 | A-Mart | Banana | 100 |
|Mar 2021 | A-Mart | Banana | 80 |
|Apr 2021 | A-Mart | Banana | 20 |
当前输出:每周数据“周日”的平均值
| Date | Store | Fruit | Quantity |
|:---------:|:--------:|:-------:|:----------:|
|03/Jan/21 | A-Mart | Apple | 14 |
|10/Jan/21 | A-Mart | Apple | 14 |
|17/Jan/21 | A-Mart | Apple | 14 |
|24/Jan/21 | A-Mart | Apple | 14 |
|31/Jan/21 | A-Mart | Apple | 14 |
|03/Feb/21 | A-Mart | Apple | 15 |
|10/Feb/21 | A-Mart | Apple | 15 |
|17/Feb/21 | A-Mart | Apple | 15 |
|24/Feb/21 | A-Mart | Apple | 15 |
|07/Mar/21 | A-Mart | Apple | 22.5 |
|14/Mar/21 | A-Mart | Apple | 22.5 |
|21/Mar/21 | A-Mart | Apple | 22.5 |
|28/Mar/21 | A-Mart | Apple | 22.5 |
|04/Apr/21 | A-Mart | Apple | 10 |
|11/Apr/21 | A-Mart | Apple | 10 |
|18/Apr/21 | A-Mart | Apple | 10 |
|25/Apr/21 | A-Mart | Apple | 10 |
|03/Jan/21 | A-Mart | Banana | 8 |
|10/Jan/21 | A-Mart | Banana | 8 |
|17/Jan/21 | A-Mart | Banana | 8 |
|24/Jan/21 | A-Mart | Banana | 8 |
|31/Jan/21 | A-Mart | Banana | 8 |
|03/Feb/21 | A-Mart | Banana | 25 |
|10/Feb/21 | A-Mart | Banana | 25 |
|17/Feb/21 | A-Mart | Banana | 25 |
|24/Feb/21 | A-Mart | Banana | 25 |
|07/Mar/21 | A-Mart | Banana | 20 |
|14/Mar/21 | A-Mart | Banana | 20 |
|21/Mar/21 | A-Mart | Banana | 20 |
|28/Mar/21 | A-Mart | Banana | 20 |
|04/Apr/21 | A-Mart | Banana | 5 |
|11/Apr/21 | A-Mart | Banana | 5 |
|18/Apr/21 | A-Mart | Banana | 5 |
|25/Apr/21 | A-Mart | Banana | 5 |
目标输出:周一至周二的第 1 个月将前一周添加到当月(每周平均)
| Date | Store | Fruit | Quantity |
|:---------:|:--------:|:-------:|:----------:|
|03/Jan/21 | A-Mart | Apple | 14 |
|10/Jan/21 | A-Mart | Apple | 14 |
|17/Jan/21 | A-Mart | Apple | 14 |
|24/Jan/21 | A-Mart | Apple | 14 |
|31/Jan/21 | A-Mart | Apple | 14 |
|31/Jan/21 | A-Mart | Apple | 12 |
|03/Feb/21 | A-Mart | Apple | 12 |
|10/Feb/21 | A-Mart | Apple | 12 |
|17/Feb/21 | A-Mart | Apple | 12 |
|24/Feb/21 | A-Mart | Apple | 12 |
|24/Feb/21 | A-Mart | Apple | 18 |
|07/Mar/21 | A-Mart | Apple | 18 |
|14/Mar/21 | A-Mart | Apple | 18 |
|21/Mar/21 | A-Mart | Apple | 18 |
|28/Mar/21 | A-Mart | Apple | 18 |
|04/Apr/21 | A-Mart | Apple | 10 |
|11/Apr/21 | A-Mart | Apple | 10 |
|18/Apr/21 | A-Mart | Apple | 10 |
|25/Apr/21 | A-Mart | Apple | 10 |
|03/Jan/21 | A-Mart | Banana | 8 |
|10/Jan/21 | A-Mart | Banana | 8 |
|17/Jan/21 | A-Mart | Banana | 8 |
|24/Jan/21 | A-Mart | Banana | 8 |
|31/Jan/21 | A-Mart | Banana | 8 |
|31/Jan/21 | A-Mart | Banana | 20 |
|03/Feb/21 | A-Mart | Banana | 20 |
|10/Feb/21 | A-Mart | Banana | 20 |
|17/Feb/21 | A-Mart | Banana | 20 |
|24/Feb/21 | A-Mart | Banana | 20 |
|24/Feb/21 | A-Mart | Banana | 16 |
|07/Mar/21 | A-Mart | Banana | 16 |
|14/Mar/21 | A-Mart | Banana | 16 |
|21/Mar/21 | A-Mart | Banana | 16 |
|28/Mar/21 | A-Mart | Banana | 16 |
|04/Apr/21 | A-Mart | Banana | 5 |
|11/Apr/21 | A-Mart | Banana | 5 |
|18/Apr/21 | A-Mart | Banana | 5 |
|25/Apr/21 | A-Mart | Banana | 5 |
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