Book Image

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Aaren Stubberfield
Book Image

Cracking the Data Science Interview

By: Leondra R. Gonzalez, Aaren Stubberfield

Overview of this book

The data science job market is saturated with professionals of all backgrounds, including academics, researchers, bootcampers, and Massive Open Online Course (MOOC) graduates. This poses a challenge for companies seeking the best person to fill their roles. At the heart of this selection process is the data science interview, a crucial juncture that determines the best fit for both the candidate and the company. Cracking the Data Science Interview provides expert guidance on approaching the interview process with full preparation and confidence. Starting with an introduction to the modern data science landscape, you’ll find tips on job hunting, resume writing, and creating a top-notch portfolio. You’ll then advance to topics such as Python, SQL databases, Git, and productivity with shell scripting and Bash. Building on this foundation, you'll delve into the fundamentals of statistics, laying the groundwork for pre-modeling concepts, machine learning, deep learning, and generative AI. The book concludes by offering insights into how best to prepare for the intensive data science interview. By the end of this interview guide, you’ll have gained the confidence, business acumen, and technical skills required to distinguish yourself within this competitive landscape and land your next data science job.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Breaking into the Data Science Field
4
Part 2: Manipulating and Managing Data
10
Part 3: Exploring Artificial Intelligence
16
Part 4: Getting the Job

Using Git tags for data science

Tagging in Git is a way to mark specific points in your repository’s history as being important. Typically, people use this functionality to mark release points (v1.0, v2.0, and so on). In this section, we’ll cover the concept of tagging and how it can benefit data scientists.

Understanding Git tags

There are two types of tags that Git recognizes, lightweight and annotated. A lightweight tag is similar to a branch that doesn’t change. It’s just a pointer to a specific commit. Annotated tags, however, are stored as full objects in the Git database. Using the annotated tag is generally recommended because it is fully tracked and contains more info than the lightweight tag.

To create an annotated tag in Git, you can use the git tag -a command, followed by the tag name (usually the version), and then the message, such as the following:

git tag -a v1.0 -m "my version 1.0"

To view the tags in your repository...