Append to pandas dataframe

Append dataframe 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 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 1 colimn in pandas df

> dat1 = pd.DataFrame({'dat1': [9,5]})
> dat2 = pd.DataFrame({'dat2': [7,6]})
> dat1.join(dat2)
   dat1  dat2
0     9     7
1     5     6

Source: stackoverflow.com

Similar codes

1 vote152 views1 answer
Nlargest hierarchy series pandas
Python
-1 vote178 views3 answers
Blockchain.py
Python
140 votes180 views3 answers
Windows python pip upgrade
Python
0 vote164 views2 answers
Java to python code conversion
Python
7 votes170 views2 answers
Python print variables and string
Python
5 votes174 views3 answers
How to print multiple strings on one line in python
Python
6 votes160 views2 answers
Series.Series to dataframe
Python
5 votes265 views3 answers
Pytorch 1.7
Python
0 vote173 views1 answer
How to remove last 2 rows in a dataframe
Python
2 votes164 views1 answer
Pathlib path get directory of current file
Python