语言版本:Anaconda3-4.3.0.1-Windows-x86_64
编辑器:pycharm-community-2016.3.2
pandas:0.19.2
这个系列讲讲Python的科学计算及可视化...今天讲讲pandas模块
计算Dataframe某一列的和、均值、最大值、最小值、样本标准方差
Part 1:背景
?...dict_1 = {"time": ["2019-11-02", "2019-11-03", "2019-11-04", "2019-11-05",
"2019-12...-02", "2019-12-03", "2019-12-04", "2019-12-05"],
"pos": ["A", "A", "B", "B", "C", "C", "C",...),不是总体标准方差
Ps:根据pos列可以将value1进行分组,那么对应每一组的计算值又如何实现?