Python pandas: output dataframe to csv with integers

Question

I have a pandas.DataFrame that I wish to export to a CSV file. However, pandas seems to write some of the values as float instead of int

Answer 1

You can use astype() to specify data type for each column

For example:

import pandas
df = pandas.DataFrame(data, columns=['a','b','c','d'], index=['x','y','z'])

df = df.astype({"a": int, "b": complex, "c" : float, "d" : int})