import  sklearn as sk
import pandas as pd
import quandl

df=quandl.get('WIKI/GOOGL')
df=df[['Adj. Open','Adj. High','Adj. Low','Adj. Close','Adj. Volume']]
df['HL_PCT']=(df['Adj. High']-df['Adj. Close'])/df['Adj. Close']*100
df['PCT_Change']=(df['Adj. Close']-df['Adj. Open'])/df['Adj. Open']*100

df=df[['Adj. Close','HL_PCT','PCT_Change','Adj. Volume']]
print(df.head())