Astype conversion data type

astype Method ： The generic function , Can be used to dataframe Convert any column in to another type

Common data types are ：int integer ;float floating-point ;object/str character string ;category Classified data .

import pandas as pd 
import seaborn as sns

tips=sns.load_dataset('tips')# choice seaborn Self contained data set tips
print(tips.dtypes)# see tips The type of each column of data 
tips['sex']=tips['sex'].astype(str)# take sex The column is converted to a string type and assigned to sex Column 
print(tips.dtypes)
tips['sex_str']=tips['sex'].astype(str)# take sex The column is converted to a string type and assigned to the new column 
print(tips.dtypes)

The output is as follows ：

total_bill     float64
tip            float64
sex           category
smoker        category
day           category
time          category
size             int64
dtype: object
[Finished in 1.8s]

total_bill     float64
tip            float64
sex             object
smoker        category
day           category
time          category
size             int64
dtype: object
[Finished in 1.7s]

total_bill     float64
tip            float64
sex           category
smoker        category
day           category
time          category
size             int64
sex_str         object
dtype: object
[Finished in 1.7s]