Answers for "how to change column position in pandas"

1

how to move a column in pandas dataframe

# remove column 'colname' using pop() function
move_column = df.pop('colname')
  
# insert column using insert(position,column_name, move_column) function
df.insert(0, 'NewName', move_column)
Posted by: Guest on September-15-2021
5

how to move a column in pandas dataframe

df = df.reindex(columns=column_names)
Posted by: Guest on August-20-2020
7

pandas reorder columns

# setting up a dummy dataframe
raw_data = {'name': ['Willard Morris', 'Al Jennings', 'Omar Mullins', 'Spencer McDaniel'],
        'age': [20, 19, 22, 21],
        'favorite_color': ['blue', 'red', 'yellow', "green"],
        'grade': [88, 92, 95, 70]}
df = pd.DataFrame(raw_data, index = ['Willard Morris', 'Al Jennings', 'Omar Mullins', 'Spencer McDaniel'])
df

#now 'age' will appear at the end of our df
df = df[['favorite_color','grade','name','age']]
df.head()
Posted by: Guest on June-05-2020
3

python more order of columns

In [7]: cols = df.columns.tolist()
In [8]: cols
Out[8]: [0L, 1L, 2L, 3L, 4L, 'mean']

In [12]: cols = cols[-1:] + cols[:-1]

In [13]: cols
Out[13]: ['mean', 0L, 1L, 2L, 3L, 4L]
  
In [14]: df = df[cols]
Posted by: Guest on April-15-2020
3

pandas reorder columns

# Get column list in ['item1','item2','item3'] format 
df.columns
# [0]output: 
Index(['item1','item2','item3'], dtype='object')

# Copy just the list portion of the output and rearrange the columns 
cols = ['item3','item1','item2']

# Resave dataframe using new column order
df = df[cols]
Posted by: Guest on November-11-2020

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