This is how to find var-cov matrix, eigen-value, eigen-vector, and corr matrix, in R Name : Akmal Rizal NIM : 23031554078

Anlaysis of user reviews from the Trustpilot for the country markets of Sweden, Netherlands and Spain.

Lectura de ficheros, creación de vectores/matrices, visualización de datos..

This report presents a survival analysis conducted using the Nelson-Aalen Estimator and Log-Rank Test in R. The Nelson-Aalen Estimator is used to estimate the cumulative hazard function, while the Log-Rank Test compares survival distributions between groups. The analysis is implemented in R, demonstrating key statistical techniques for modeling survival data.

Analysis of user reviews of CarFax for Italian market.