Pandas Read CSV set dtype

When recognizing integers read_csv will default to int64, but if we would like to save memory we can set the dtype while we read the file.

examples/pandas/mixed_set_dtype.py

import pandas as pd
import numpy as np

df = pd.read_csv('mixed.csv', dtype = { 'MyInteger' : np.int8 })
print( df.dtypes )

MyText        object
MyInteger       int8
MyFloat      float64
MyBool          bool
MyExit         int64
dtype: object