Samouczki data science

Learn the fundamentals of data version control in DVC and how to use it for large datasets alongside Git to manage data science and machine learning projects.

Time complexity is the measure of how an algorithm's runtime scales with input size, often expressed using Big-O notation, which provides an upper bound on the worst-case scenario.

Learn about memory management in Python with advanced techniques for coding memory-efficient classes. Explore practical exercises for optimal performance.

Explore Cohere Command R+ online and locally, learn about the unique features of the Cohere Python API, and build a multi-step AI agent using LangChain and Cohere.

In Pandas, you can save a DataFrame to a CSV file using the df.to_csv('your_file_name.csv', index=False) method, where df is your DataFrame and index=False prevents an index column from being added.

One-hot encoding is a technique used to convert categorical data into a binary format where each category is represented by a separate column with a 1 indicating its presence and 0s for all other categories.

Learn how K-Fold Cross-Validation works and its advantages and disadvantages. Discover how to implement K-Fold Cross-Validation in Python with scikit-learn.

Integrity constraints in SQL are rules enforced on database tables to maintain data accuracy, consistency, and validity, such as ensuring unique primary keys and valid foreign key relationships.

In Python, use the .encode() method on a string to convert it into bytes, optionally specifying the desired encoding (UTF-8 by default).

Learn to use decorators like @functools.lru_cache or @functools.cache to cache functions in Python.

Boost your productivity and make debugging a breeze. Find the right Integrated Development Environment for your needs.

This snscrape tutorial equips you to install, use, and troubleshoot snscrape. You'll learn to scrape Tweets, Facebook posts, Instagram hashtags, or Subreddits.