Course Content
Tweet Sentiment Analysis
Data Preprocessing
Data preprocessing refers to the techniques used to prepare raw data for further analysis or modeling. The goal of preprocessing is to clean, transform, and format the data so that it can be used effectively in an analysis or model.
Methods description
- The
.dropna()
method in Pandas is used to remove rows or columns with missing values (NaN). Settinginplace=True
modifies the DataFrame in place, meaning the changes are applied directly to the original DataFrame, and it returnsNone
; - The
.drop_duplicates()
method is used to remove duplicate rows from the DataFrame. Settinginplace=True
modifies the DataFrame in place, removing duplicate rows, and it returnsNone
.
Task
- Drop
NaNs
from our dataset. - Drop duplicates from our dataset.
Mark tasks as Completed
Switch to desktop for real-world practiceContinue from where you are using one of the options below
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Data preprocessing refers to the techniques used to prepare raw data for further analysis or modeling. The goal of preprocessing is to clean, transform, and format the data so that it can be used effectively in an analysis or model.
Methods description
- The
.dropna()
method in Pandas is used to remove rows or columns with missing values (NaN). Settinginplace=True
modifies the DataFrame in place, meaning the changes are applied directly to the original DataFrame, and it returnsNone
; - The
.drop_duplicates()
method is used to remove duplicate rows from the DataFrame. Settinginplace=True
modifies the DataFrame in place, removing duplicate rows, and it returnsNone
.
Task
- Drop
NaNs
from our dataset. - Drop duplicates from our dataset.
Mark tasks as Completed
Switch to desktop for real-world practiceContinue from where you are using one of the options below
Section 1. Chapter 4
AVAILABLE TO ULTIMATE ONLY