Projection, Filtering, and Aggregation of Data Streams

Computer Programming

1,482 learners

Focusing on data manipulation operations, this course teaches how to perform data projection, filtering, and aggregation using Python without needing advanced external libraries. You will learn how to use both procedural and functional programming techniques when applying filtering and aggregation on the data stream.

Python

See path

5 lessons

24 practices

3 hours

Computer Science Fundamentals

Course details

Understanding Data Streams: Basics and Operations

Preview

Add Stream Index Method

DataStream Class Revision

Add Method to Get DataStream Elements

Enhance the DataStream Class with Slice String Conversion Method

DataStream Class Slice to String Method

Previous Course

Next Course: Practicing Intermediate Implementation and Data Streams

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11