/Python/Append dataframe to another dataframe

Append dataframe to another dataframe

Append one row to pandas dataframe

df = df.append({'index1': value1, 'index2':value2,...}, ignore_index=True)

Appending dataframes pandas

>>> df = pd.DataFrame([[1, 2], [3, 4]], columns=list('AB'))
>>> df
   A  B
0  1  2
1  3  4
>>> df2 = pd.DataFrame([[5, 6], [7, 8]], columns=list('AB'))
>>> df.append(df2)
   A  B
0  1  2
1  3  4
0  5  6
1  7  8

Source: pandas.pydata.org

Append dataframe to another dataframe

>>> df = pd.DataFrame([[1, 2], [3, 4]], columns=list('AB'), index=['x', 'y'])
>>> df
   A  B
x  1  2
y  3  4
>>> df2 = pd.DataFrame([[5, 6], [7, 8]], columns=list('AB'), index=['x', 'y'])
>>> df.append(df2, ignore_index=True)
   A  B
x  1  2
y  3  4
x  5  6
y  7  8

Source: pandas.pydata.org

How to append a dataframe to another dataframe in pandas

# all_res is list of DataFrames : [ dataframe, dataframe, ... ]
df_res = pd.concat(all_res)

Source: stackoverflow.com

Similar codes

5 votes127 views3 answers
Sys module in python
Python
0 vote110 views1 answer
InvalidVersionSpec: Invalid version ' 0 . 7 . 1 2 ': invalid character(s)
Python
8 votes103 views1 answer
Delete certain characters from a string python
Python
0 vote109 views1 answer
Argsort in descending order numpy
Python
1 vote133 views2 answers
Django class based views
Python Django
3 votes126 views1 answer
Write binary file in python
Python
0 vote114 views1 answer
Django.core.exceptions.ImproperlyConfigured: Application labels aren't unique, duplicates: auth
Python
0 vote120 views1 answer
Make a white image numpy
Python
0 vote113 views1 answer
Hackerrank python solutions
Python
-1 vote103 views2 answers
Dataframe multiindex
Python