摘要：#conding:utf-8 import numpy as np import pandas as pd import matplotlib.pyplot as plt array = np.array([[1, 2, 3], [2, 3, 4]]) #矩阵存为数组 print(array) print('number of dim,几行', array.n... 阅读全文

摘要：# coding:utf-8import numpy as npimport pandas as pddatas = pd.date_range('20140729', periods=6)# 先创建一个时间索引，所谓的索引（index)就是每一行数据的id，可以标识每一行的唯一值print dat 阅读全文