article thumbnail

60 Python Interview Questions For Data Analyst

Analytics Vidhya

Python powers most data analytics workflows thanks to its readability, versatility, and rich ecosystem of libraries like Pandas, NumPy, Matplotlib, SciPy, and scikit-learn. Employers frequently assess candidates on their proficiency with Python’s core constructs, data manipulation, visualization, and algorithmic problem-solving.

article thumbnail

Dijkstra Algorithm in Python

Analytics Vidhya

However, one of the […] The post Dijkstra Algorithm in Python appeared first on Analytics Vidhya. When delivering products through city roads or searching for the most effective route in a network or other systems, the shortest route is crucial.

Algorithm 208
professionals

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

A Gentle Introduction to Principal Component Analysis (PCA) in Python

Flipboard

By Iván Palomares Carrascosa , KDnuggets Technical Content Specialist on July 4, 2025 in Python Image by Author | Ideogram Principal component analysis (PCA) is one of the most popular techniques for reducing the dimensionality of high-dimensional data. Now we can apply the PCA algorithm.

Python 131
article thumbnail

How I Automated My Machine Learning Workflow with Just 10 Lines of Python

Flipboard

Sign in Sign out Contributor Portal Latest Editor’s Picks Deep Dives Contribute Newsletter Toggle Mobile Navigation LinkedIn X Toggle Search Search Data Science How I Automated My Machine Learning Workflow with Just 10 Lines of Python Use LazyPredict and PyCaret to skip the grunt work and jump straight to performance.

article thumbnail

Streaming Langchain: Real-time Data Processing with AI

Data Science Dojo

Learn to build a recommendation system using Python Real-Time Interaction Whether it’s engaging with customers, analyzing live events, or responding to user queries, streaming enables more natural, responsive interactions. or later Install Langchain: Ensure that Langchain is installed in your Python environment.

AI 370
article thumbnail

The Lifecycle of Feature Engineering: From Raw Data to Model-Ready Inputs

KDnuggets

By Jayita Gulati on July 16, 2025 in Machine Learning Image by Editor In data science and machine learning, raw data is rarely suitable for direct consumption by algorithms. Feature engineering can impact model performance, sometimes even more than the choice of algorithm itself.

article thumbnail

How to Learn Math for Data Science: A Roadmap for Beginners

Flipboard

But you do need to understand the mathematical concepts behind the algorithms and analyses youll use daily. Key Resources: "Think Stats" by Allen Downey Khan Academys Statistics course Coding component: Use Pythons scipy.stats and pandas for hands-on practice. But why is this difficult? Why its essential: Your data is in matrices.