/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

1 vote186 views1 answer
Multiple pdf in a directory to csv python
Python
2 votes178 views1 answer
Downgrade python 3.8 to 3.7 ubuntu
Python
0 vote218 views1 answer
Screen.onkey python
Python
0 vote172 views2 answers
Tensorflow conv2d operation
Python
0 vote186 views1 answer
How to delete all item in treeview tkinter
Python
0 vote160 views1 answer
Python split string regular expression
Python
0 vote205 views1 answer
Python Split list into chunks using List Comprehension
Python
37 votes216 views6 answers
How to convert list into string in python
Python
0 vote211 views1 answer
How to get cube root python
Python
0 vote192 views1 answer
CMake Error at pybind11/tools/FindPythonLibsNew.cmake:131 (message): Python config failure:
Python