Related Articles

Related Articles

Apply uppercase to a column in Pandas dataframe
  • Last Updated : 06 Dec, 2018

Analyzing a real world data is some what difficult because we need to take various things into consideration. Apart from getting the useful data from large datasets, keeping data in required format is also very important.

One might encounter a situation where we need to uppercase each letter in any specific column in given dataframe. Let’s see how can we Apply uppercase to a column in Pandas dataframe.

Let’s create a dataframe using nba.csv.

filter_none

edit
close

play_arrow

link
brightness_4
code

# Import pandas package 
import pandas as pd 
    
# making data frame 
    
# calling head() method  
# storing in new variable 
data_top = data.head(10
    
# display 
data_top

chevron_right


Output:

There are certain methods we can change/modify the case of column in Pandas dataframe. Let’s see how can we apply uppercase to a column in Pandas dataframe using upper() method.



Method #1:

filter_none

edit
close

play_arrow

link
brightness_4
code

# Import pandas package 
import pandas as pd 
    
# making data frame 
      
# display 
data['Name'] = data['Name'].str.upper()
  
data.head()

chevron_right


Output:

 

Method #2: Using lambda with upper() method

filter_none

edit
close

play_arrow

link
brightness_4
code

# Import pandas package 
import pandas as pd 
    
# making data frame 
  
  
# removing null values to avoid errors  
data.dropna(inplace = True)  
  
# Applying upper() method on 'College' column
data['College'].apply(lambda x: x.upper()).head(10)

chevron_right


Output:

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.




My Personal Notes arrow_drop_up
Recommended Articles
Page :