pd.dataframe和series以及np.narray的维度升降

import pandas as pd
data = pd.read_csv(r".\Narrativedata.csv"
,index_col=0
)#index_col=0将第0列作为索引，不写则认为第0列为特征

data.head()

age1=data.loc[:,"Age"]
print(type(age1))
age1.head()

print(type(Age.to_frame()))
print(Age.to_frame().shape)
Age.to_frame().head()

age1=Age.reshape(-1,1)

 age2=Age.values.reshape(-1,1)

print(type(age2))
age2.shape