পাইথনে Pandas DataFrame-এ কলামে আপারকেস (Uppercase) প্রয়োগ

উদাহরণ

import pandas as pd
# একটি DataFrame
df = pd.DataFrame({'Day': ['mon', 'tue', 'wed', 'thu', 'fri'],
                   'Subject': ['Math', 'english', 'science', 'music', 'games']})
df['Day'] = df['Day'].str.upper()
print(df)

আউটপুট

    Day     Subject
0  MON      Math
1  TUE     english
2  WED     science
3  THU     music
4  FRI     games

উদাহরণ

# একটি DataFrame
df = pd.DataFrame({'Day': ['mon', 'tue', 'wed', 'thu', 'fri'],
                   'Subject': ['Math', 'english', 'science', 'music', 'games']})
df1 = df['Subject'].apply(lambda x: x.upper())
print(df1)

আউটপুট

0     MATH
1   ENGLISH
2   SCIENCE
3    MUSIC
4    GAMES
Name: Subject, dtype: object