У меня есть данные-
YEAR Date Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1965 1 0.64 0.53 1.94 7.21 3.53 2.21 0.85 1.94 0.98 0.64 6.48 4.08
1965 2 2.21 0.53 1.94 0.98 0.64 2.21 0.53 0.53 1.94 7.21 3.53 2.21
1965 3 1.94 0.98 0.64 2.21 0.53 2.21 7.21 3.53 2.21 0.64 6.48 4.08
... .. ... ... ... ... .... ...
2020 29 1.12 0.90 0.87 1.28 1.62 1.28 0.84 0.74 0.83 1.04 0.94 0.94
2020 30 1.19 NaN 0.87 1.41 1.87 1.26 0.83 0.71 0.89 1.13 0.94 0.94
2020 31 1.15 NaN 0.85 NaN 1.99 NaN 0.82 0.71 NaN 1.11 NaN 0.96
Я ожидаю-
Date Value
01-01-1965 0.64
02-01-1995 0.21
03-01-1965 1.94
.... ....
31-01-1965 0.63
01-02-1965 0.94
... ....
31-12-1965 1.95
01-01-1966 0.65
... .....
31-12-2020 1.15
Подробнее здесь: https://stackoverflow.com/questions/784 ... ata-format