我希望将我的列转换为多个数组,使得每行的值来自同一日期。
My data:
Date Value
2006-12-11 816.2
2006-12-11 816.2
2006-12-11 816.2
2006-12-12 848.2
2006-12-12 849.0
2006-12-13 885.6
2006-12-13 887.0
2006-12-13 885.2
2006-12-13 882.0
2006-12-13 885.0
期望输出:
[[816.2, 816.2, 816.2]
[848.2, 849.0]
[885.6, 887.0, 885.2, 882.0, 885.0]]