Author: Sara

Linear programming in R

Linear programming is a technique to solve optimization problems whose constraints and outcome are represented by linear relationships.Simply put, linear programming allows to solve problems of the following kind:Maximize/minimize $\hat...continue reading.

PCA revisited

Principal component analysis (PCA) is a dimensionality reduction technique which might come handy when building a predictive model or in the exploratory phase of your data analysis. It is often...continue reading.

Regex Tutorial with Examples

This tutorial covers various concepts of regular expression (regex) with hands-on examples. It also includes usage of regex using various tools such as R and Python.There are several use-cases of...continue reading.