Companies want to know what all types of customers like so they can sell more products. But asking everybody is way too much work. This is where sampling comes in handy! Sampling means only surveying a small group instead of…
Solving systems of linear equations is useful in many areas like science and math. Normally, you would use a math library in Python like Numpy or SymPy to solve them. But for simple problems, we don’t need complex libraries. In…
We’ve all heard it – “go to college to get a good job.” The assumption is that higher education leads straight to higher incomes. Elite Indian institutes like the IITs and IIMs are even judged based on the average starting…
Setting up OpenCV for Python development on MacOS can be tricky, especially when you run into cryptic compiler errors like “fatal error: ‘Python.h’ file not found”. This comprehensive guide will walk you through installing OpenCV 4.7.0 with Python 3.11 on…
Have you ever wanted to create a Discord bot that can delete inappropriate or unwanted messages sent by users? Deleting user messages is a common requirement for managing chat servers and keeping conversations civil. In this comprehensive guide, you’ll learn how…
Probability helps us with making investment choices. Since we can’t foresee the future, investors have to go on likelihood and chance instead of certainty. So before an analyst suggests a stock, they’ll gauge the probability it will gain or lose…
Interacting with web elements is a core part of automating browsers with Selenium. However, you may occasionally run into the frustrating “element not interactable” exception when trying to click, send keys, or otherwise interact with an element on a page.…
When trying to assess the performance of our machine learning model for various classification tasks, accuracy might not be enough. Most of the time when we use an imbalanced dataset, the accuracy of the model might be misleading in evaluating…
The ROC-AUC score tells us how well a machine learning model can separate things into different groups. ROC-AUC stands for “Receiver Operating Characteristic – Area Under Curve”. The score is between 0.5 and 1. A score of 0.5 means the…
While the OpenCV package offers a variety of features, the contrib modules provide useful extras for specialized tasks. The process of installing these modules means handling dependencies and pointing installers to non-standard module locations hosted online. Thankfully, with a bit…