将数据框列标题和值拆分为多个列

Question

I've uploaded my csv file on Azure, but for some reason it became like this

 nominal;data;curs;cdx         Column 1
0          1;21.06.2000;28  2300;������ ���
1          1;22.06.2000;28  2200;������ ���
2          1;23.06.2000;28  1900;������ ���
3          1;24.06.2000;28  1700;������ ���
4          1;27.06.2000;28  1300;������ ���
5          1;28.06.2000;28  1100;������ ���

Basically instead of four columns nominal , data , curs , cdx I got two columns with one having all the values and the last one (it is empty or something because the last column has encoding issue) - no idea what.

I have deleted the column Column 1 like this

import pandas as pd

def azureml_main(dataframe1 = None, dataframe2 = None):
    dataframe1.drop(['Column 1'], axis = 1, inplace = True)
    print('Input pandas.DataFrame #1:\r\n\r\n{0}'.format(dataframe1))
    return dataframe1,

How to split the first column into multiple now? To get 4 separate columns

I am using pandas 0.18

Answer 1

You need to split the column with:

dataframe1['nominal;data;curs;cdx'].str.split(';',expand=True)

Then change the headers with:

dataframe1.columns = 'nominal;data;curs;cdx'.split(';')