/Python/Creating a new DataFrame from itertuples, namedtuple using a series or list()

Creating a new DataFrame from itertuples, namedtuple using a series or list()

import pandas as pd

# source DataFrame
df = pd.DataFrame({'a': [1,2], 'b':[3,4]})
# empty DataFrame
df_new_fromAppend = pd.DataFrame(columns=['x','y'], data=None)

for r in df.itertuples():
    # create new DataFrame from itertuples() via list() ([1:] for skipping the index):
    df_new_fromList = pd.DataFrame([list(r)[1:]], columns=['c','d'])
    # or create new DataFrame from itertuples() via Series (drop(0) to remove index, T to transpose column to row) 
    df_new_fromSeries = pd.DataFrame(pd.Series(r).drop(0)).T
    # or use append() to insert row into existing DataFrame ([1:] for skipping the index):
    df_new_fromAppend.loc[df_new_fromAppend.shape[0]] = list(r)[1:]

print('df_new_fromList:')
print(df_new_fromList, '\n')
print('df_new_fromSeries:')
print(df_new_fromSeries, '\n')
print('df_new_fromAppend:')
print(df_new_fromAppend, '\n')

Source: stackoverflow.com

Similar codes

0 vote177 views1 answer
Python how to automatically restart flask sever
Python
0 vote181 views2 answers
Mysql config not found
Python
0 vote185 views1 answer
Redirect the Python Script Output to File
Python
0 vote292 views3 answers
Berlin
Python
0 vote237 views1 answer
Handling single exception
Python
0 vote1.6K views1 answer
Split string with first numerical value in python
Python
0 vote196 views1 answer
Loi normale python numpy
Python
0 vote160 views1 answer
Code runner runs python 2
Python
0 vote167 views1 answer
Access twitter api using tweepy in python
Python
2 votes173 views2 answers
Pandas read excel certain columns
Python