求助如何把ID和RQ相同的行合并成新的一行,并且新的一行的Q=(Q1+Q2+...), P=(P1*Q1+P2*Q2+...)/(Q1+Q2+...)
举例:
| ID | RQ | Q | P |
1 | 2A01 | 20160731 | 16381.52 | 4.7319 |
2 | 2A01 | 20160731 | 6780.96 | 4.4876 |
3 | 2A01 | 20160801 | 14877.23 | 4.8041 |
4 | 2A01 | 20160801 | 13006.9 | 3.8637 |
5 | 2A01 | 20160801 | 44107.85 | 4.5341 |
6 | 2A01 | 20160802 | 15197.33 | 4.7577 |
7 | 2B01 | 20160805 | 7775.15 | 4.5772 |
8 | 2A01 | 20160805 | 50138.58 | 4.223 |
变成:
| ID | RQ | Q | P |
1 | 2A01 | 20160731 |
23162.48
|
4.6604
|
2 | 2A01 | 20160801 |
71991.98
|
4.4688
|
3 | 2A01 | 20160802 | 15197.33 | 4.7577 |
4 | 2B01 | 20160805 | 7775.15 | 4.5772 |
5 | 2A01 | 20160805 | 50138.58 | 4.223 |
希望能给点思路!谢谢!