A step-by-step manual implementation of multiple linear regression in R using matrix algebra — comparing Ordinary Least Squares (OLS) and Maximum Likelihood Estimation (MLE), complete with multicollinearity, linearity, and residual diagnostic tests (normality, homoscedasticity, autocorrelation). Built without lm() or external regression packages.

R script for Multivariate analysis - Magnesium stress condition in Spinach

It's a HTML R markdown tutorial, I've got from Youtube.

Ejercicio Waze

Identificar las variables operativas y demográficas que predicen el ausentismo a citas médicas, y proponer rutas de acción concretas para optimizar la gestión de agendas y la experiencia del paciente.