COMIDOC
CouponsFreeTopics
COMIDOC
CouponsVerified CouponsFreeFree CoursesTopicsTopics
React
AdvertiseSubmit Course

About

Udemy coupons monitored continuously.

Verified offers, course alerts, precise filters, and browser detection built for learners who want coupons that still work.

TelegramTwitterFacebookRSS

Browser tools

Find coupons directly on Udemy.

The extension surfaces an available Comidoc coupon while you browse a Udemy course page.

ChromeFirefoxEdge

Useful links

Discover

  • Blog
  • Daily Freebies
  • Most Wanted Coupons
  • Top Contributors
  • Udemy Sale Calendar

Services

  • Pricing
  • Advertise Here
  • Developer API
  • Submit Coupon

Comidoc

  • About
  • Contact
  • Data License
  • Privacy
  • Terms

© 2017–2026 Comidoc

v6.6.30

Independent coupon discovery for Udemy learners

Course topic

  1. Topics
  2. Development
  3. Data Preprocessing

Data Preprocessing

Also indexed asData Cleaning · Data Prep · Data Transformation

Master techniques for cleaning, shaping, and preparing raw data for accurate analysis.

Courses indexed
42
Live offers
8
Free & coupon courses onlyChange view
Certification in Natural Language Processing (NLP)
Instructor Human and Emotion: CHRMI
Human and Emotion: CHRMI
1 course
English
Certification in Natural Language Processing (NLP)

Certification in Natural Language Processing (NLP)

(4.50 with 36 reviews)
1.1K
students
11 hours
content
Jul 2024
updated
$14.99
Master Power BI: 30 Hands-On Projects for Data Visualization
Instructor Pianalytix • 75,000+ Students Worldwide
Pianalytix • 75,000+ Students Worldwide
1 course
English
Master Power BI: 30 Hands-On Projects for Data Visualization

Master Power BI: 30 Hands-On Projects for Data Visualization

(4.11 with 236 reviews)
2.3K
students
21 hours
content
Oct 2025
updated
$17.99
Revealed: Power BI Query Editor For Cleaner BI Data
Instructor Doug Burke
Doug Burke
1 course
English
Revealed: Power BI Query Editor For Cleaner BI Data

Revealed: Power BI Query Editor For Cleaner BI Data

(4.20 with 46 reviews)
1.3K
students
1.0 hours
content
Feb 2019
updated
$14.99
Tree-Based Modeling with R: Bank Loan Default Prediction
Instructor EDUCBA Bridging the Gap
EDUCBA Bridging the Gap
1 course
English
Tree-Based Modeling with R: Bank Loan Default Prediction

Tree-Based Modeling with R: Bank Loan Default Prediction

(4.58 with 6 reviews)
2.7K
students
1.5 hours
content
Dec 2024
updated
FREE
Power BI: Transformación y limpieza de datos con Power Query
Instructor DataBoosters Academy
DataBoosters Academy
1 course
Spanish
Power BI: Transformación y limpieza de datos con Power Query

Power BI: Transformación y limpieza de datos con Power Query

(4.65 with 210 reviews)
24.4K
students
2.7 hours
content
Jan 2026
updated
$17.99
画像前処理（OpenCV）ハンズオン - トヨタ自動車株式会社 D-ROOM
Instructor わっさー トヨタ自動車株式会社 D-ROOM
わっさー トヨタ自動車株式会社 D-ROOM
1 course
Japanese
画像前処理（OpenCV）ハンズオン - トヨタ自動車株式会社 D-ROOM

画像前処理（OpenCV）ハンズオン - トヨタ自動車株式会社 D-ROOM

(4.74 with 29 reviews)
285
students
1.7 hours
content
Jul 2024
updated
FREE
Master Excel Power Query for Business Data Analysis & Report
Instructor Mahavir Bhardwaj
Mahavir Bhardwaj
1 course
English
Master Excel Power Query for Business Data Analysis & Report

Master Excel Power Query for Business Data Analysis & Report

(4.25 with 2 reviews)
10
students
1.8 hours
content
Jan 2026
updated
$14.99
Looker Studio : la formation complète (Google data studio)
Instructor Clément L. | Microsoft | Power BI | Excel | Business Intelligence | Tableau
Clément L. | Microsoft | Power BI | Excel | Business Intelligence | Tableau
1 course
French
Looker Studio : la formation complète (Google data studio)

Looker Studio : la formation complète (Google data studio)

(4.50 with 84 reviews)
366
students
1.8 hours
content
Jan 2026
updated
$17.99
Natural Language Processing:Concept along with Case Study
Instructor Rishi Bansal
Rishi Bansal
1 course
English
Natural Language Processing:Concept along with Case Study

Natural Language Processing:Concept along with Case Study

(4.59 with 210 reviews)
8.1K
students
1.5 hours
content
Jun 2020
updated
FREE
Automating ETL - Complete Code Challenges and ETL Projects
Instructor Tim Smith
Tim Smith
1 course
English
Automating ETL - Complete Code Challenges and ETL Projects

Automating ETL - Complete Code Challenges and ETL Projects

(4.16 with 59 reviews)
426
students
17 hours
content
Aug 2025
updated
$219.99
Data Preprocessing and Exploratory Data Analysis (EDA)
Instructor Akhil Vydyula
Akhil Vydyula
1 course
English
Data Preprocessing and Exploratory Data Analysis (EDA)

Data Preprocessing and Exploratory Data Analysis (EDA)

(4.38 with 41 reviews)
1.7K
students
35 minutes
content
Apr 2025
updated
FREE
Certification in Marketing Analytics
Instructor Human and Emotion: CHRMI
Human and Emotion: CHRMI
1 course
English
Certification in Marketing Analytics

Certification in Marketing Analytics

(4.31 with 68 reviews)
1.1K
students
8.0 hours
content
Aug 2024
updated
$14.99
Page 3 of 4
1234

Continue exploring

Topics related to Data Preprocessing

  • 01Data Analysis & Preparation23
  • 02Excel Data Transformation14
  • 03Data Preparation & Cleansing89
  • 04Machine Learning (ML)1358
  • 05Data Preprocessing9
  • 06MLflow for ML Lifecycle19
  • 07R for Spatial Data21