Here's how to run both simple and multiple linear regression in Google Sheets using the built-in LINEST function. No add-ons or coding required.

Python programming language: A cheat sheet (TechRepublic) If you don’t know Python, ... and a learning procedure to fit the data (linear regression, gradient descent, genetic algorithms, ...

I use Python 3 and Jupyter Notebooks to generate plots and equations with linear regression on Kaggle data. I checked the correlations and built a basic machine learning model with this dataset.