pandas set column names code example
Example 1: python how to rename columns in pandas dataframe
pandas_dataframe.columns = ['list', 'of', 'column', 'names']
pandas_dataframe.rename(columns={'column_name_to_change':'new_name'})
pandas_dataframe.index = ['list', 'of', 'row', 'names']
pandas_dataframe.rename(index={'row_name_to_change':'new_name'})
Example 2: rename column name pandas dataframe
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})
Example 3: pandas rename column
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"}, inplace=True)
Example 4: renaming headers pandasd
df = df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})
Example 5: create dataframe with column names pandas
In [4]: import pandas as pd
In [5]: df = pd.DataFrame(columns=['A','B','C','D','E','F','G'])
In [6]: df
Out[6]:
Empty DataFrame
Columns: [A, B, C, D, E, F, G]
Index: []
Example 6: df change column names
df.rename(columns={"A": "a", "B": "b", "C": "c"},
errors="raise", inplace=True)