There are three basic methods you can use to select multiple columns of a pandas DataFrame:
Method 1: Select Columns by Index
df_new = df.iloc[:, [0,1,3]]
Method 2: Select Columns in Index Range
df_new = df.iloc[:, 0:3]
Method 3: Select Columns by Name
df_new = df[['col1', 'col2']]
The following examples show how to use each method with the following pandas DataFrame:
import pandas as pd
#create DataFrame
df = pd.DataFrame({'points': [25, 12, 15, 14, 19, 23, 25, 29],
'assists': [5, 7, 7, 9, 12, 9, 9, 4],
'rebounds': [11, 8, 10, 6, 6, 5, 9, 12],
'blocks': [4, 7, 7, 6, 5, 8, 9, 10]})
#view DataFrame
df
points assists rebounds blocks
0 25 5 11 4
1 12 7 8 7
2 15 7 10 7
3 14 9 6 6
4 19 12 6 5
5 23 9 5 8
6 25 9 9 9
7 29 4 12 10
Method 1: Select Columns by Index
The following code shows how to select columns in index positions 0, 1, and 3:
#select columns in index positions 0, 1, and 3
df_new = df.iloc[:, [0,1,3]]
#view new DataFrame
df_new
points assists blocks
0 25 5 4
1 12 7 7
2 15 7 7
3 14 9 6
4 19 12 5
5 23 9 8
6 25 9 9
7 29 4 10
Notice that the columns in index positions 0, 1, and 3 are selected.
Note: The first column in a pandas DataFrame is located in position 0.
Method 2: Select Columns in Index Range
The following code shows how to select columns in the index range 0 to 3:
#select columns in index range 0 to 3
df_new = df.iloc[:, 0:3]
#view new DataFrame
df_new
points assists rebounds
0 25 5 11
1 12 7 8
2 15 7 10
3 14 9 6
4 19 12 6
5 23 9 5
6 25 9 9
7 29 4 12
Note that the column located in the last value in the range (3) will not be included in the output.
Method 3: Select Columns by Name
The following code shows how to select columns by name:
#select columns called 'points' and 'blocks'
df_new = df[['points', 'blocks']]
#view new DataFrame
df_new
points blocks
0 25 4
1 12 7
2 15 7
3 14 6
4 19 5
5 23 8
6 25 9
7 29 10
Additional Resources
The following tutorials explain how to perform other common operations in pandas:
How to List All Column Names in Pandas
How to Drop Columns in Pandas
How to Convert Index to Column in Pandas