# -*- coding: utf-8 -*-"""Created on Fri Feb 17 11:30:57 2017@author: yunjinqiE-mail:yunjinqi@QQ.comDifferentiate yourself in the world from anyone else."""import pandas as pddf=pd.read_Excel('luowen.xls')df.head()df=df.iloc[::,8]df.head()df.shift(1).head()rate=(df-df.shift(1))/df.shift(1)rate=rate.dropna()rate.head()############################################計算數據的基本統計量：均值，方差，偏度，峰度等import stats as stsimport numpy as nplen(rate)#長度rate.mean()#均值rate.std()#標準差rate.var()#varrate.describe()#描述sts.skewness(rate)sts.kurtosis(rate)###引用別人寫的scores=rate#集中趨勢的度量