在熊猫中重新采样

Question

I want to resample at minute but the value of the sample at minute t must come from the last previous value.

However, doing a resample.last(), it takes the last value of the current set.

How to do ?

Answer 1

您可以将DataFrame.resample与last一起使用，对于以前的值添加DataFrame.shift ：

df = df.resample('1Min').last().shift()