Assign pandas dataframe column dtypes

Question

I want to set the dtypes of multiple columns in pd.Dataframe (I have a file that I\'ve had to manually parse into a list of lists, as the file was

Answer 1

Another way to set the column types is to first construct a numpy record array with your desired types, fill it out and then pass it to a DataFrame constructor.

import pandas as pd
import numpy as np    

x = np.empty((10,), dtype=[('x', np.uint8), ('y', np.float64)])
df = pd.DataFrame(x)

df.dtypes ->

x      uint8
y    float64