1 Object Creation（建立物件）

1.1 Series

給 list 建立預設索引

import pandas as pd
import numpy as np
s = pd.Series([1,2,3,4,5])
print(s)

s1 = pd.Series([1,2,3,4,np.nan])
print(s1)

output

1.2 DataFrame

• DataFrame
  • index
  • columns

dates = pd.date_range('20180930',periods=6)
print(dates)

df = pd.DataFrame(np.random.rand(6,4),index=dates,columns=list('ABCD'))
print(df)
 

output

1.3 DataFrame