#python-3.x
Вопрос:
кто-нибудь может мне помочь? Я работаю с этим фреймом данных
DAY | MATERIAL | PRICE | CLIENT 2021-01 | A | 13.10 | SOMEONE 2021-01 | B | 15.70 | SOMEONE 2021-02 | C | 10.55 | SOMEONE 2021-06 | B | 16.23 | SOMEONE 2021-07 | C | 14.44 | SOMEONE 2021-08 | B | 19.65 | SOMEONE и я хотел бы получить что-то подобное
DAY | MATERIAL | PRICE | CLIENT 2021-01 | A | 13.10 | SOMEONE 2021-02 | A | 13.10 | SOMEONE 2021-03 | A | 13.10 | SOMEONE 2021-04 | A | 13.10 | SOMEONE 2021-05 | A | 13.10 | SOMEONE 2021-06 | A | 13.10 | SOMEONE 2021-07 | A | 13.10 | SOMEONE 2021-08 | A | 13.10 | SOMEONE 2021-01 | B | 15.70 | SOMEONE 2021-02 | B | 15.70 | SOMEONE 2021-03 | B | 15.70 | SOMEONE 2021-04 | B | 15.70 | SOMEONE 2021-05 | B | 15.70 | SOMEONE 2021-06 | B | 16.23 | SOMEONE 2021-07 | B | 16.23 | SOMEONE 2021-08 | B | 19.65 | SOMEONE 2021-01 | C | 10.55 | SOMEONE 2021-02 | C | 10.55 | SOMEONE 2021-03 | C | 10.55 | SOMEONE 2021-04 | C | 10.55 | SOMEONE 2021-05 | C | 10.55 | SOMEONE 2021-06 | C | 10.55 | SOMEONE 2021-07 | C | 14.44 | SOMEONE 2021-08 | C | 14.44 | SOMEONE Мне нужно понять эволюцию цен на все материалы для какого-то клиента