DEV Community

GharamElhendy
GharamElhendy

Posted on

Data Wrangling Techniques

#python #datascience

To drop certain irrelevant columns when analyzing a dataset 

df.drop(['ColumnX', 'ColumnY', 'ColumnZ'], axis=1, inplace=True)
Enter fullscreen mode Exit fullscreen mode

To count the number of values in a column 

df['Column_name'].value_counts()
Enter fullscreen mode Exit fullscreen mode

To change the value to numeric 

df['Column_name'] = pd.to_numeric(df['Column_name'])
Enter fullscreen mode Exit fullscreen mode

To replace certain values in a column to other values of choice 

df['Column_name'] = df['Column_name'].replace(['Initial_value'], 'New_value')
Enter fullscreen mode Exit fullscreen mode

Top comments (0)

Read next

rym_michaut profile image

7 Best Python Visualization Libraries for 2024

Rym -

nodefiend profile image

Install AUTO-GPT on mac OS (march 2024)

chowderhead -

therustgarden profile image

Opaque Types for UniFFI

Grayson Hay -

antonov_mike profile image

Encapsulation in Rust and Python

Antonov Mike -