#!/usr/bin/env python
# coding: utf-8

# In[1]:


import pandas as pd
import numpy as np


# In[2]:


data = pd.read_csv("person_info.csv")


# You can find the data here: https://github.com/lizhouf/oscr2019/blob/master/person_info.csv

# In[3]:


data


# ## How to Check & Convert Data Types using Python? 

# ### Check Data Types

# In python, we can use the .info() method to check the data information (note that "object" includes string data type):

# In[4]:


data.info()


# ### Convert Data Type

# If we want the class_of column to be all string types (i.e. dummy variables), we can:

# In[6]:


data.class_of = data.class_of.to_string()


# We can see that, after these operations, the data type description of the class_of column is now changed to object.

# In[7]:


data.info()