Data Science and Machine Learning with R - Data Preprocessing Introduction

The video tutorial by Ismael covers the crucial role of data preprocessing in machine learning. It emphasizes the importance of splitting data into training and testing sets for validation, and discusses feature engineering as a key component. The tutorial outlines common preprocessing steps such as handling missing values, vectorization, and feature scaling. It also introduces the use of R packages like tidy models, recipes, and R sample for efficient preprocessing.

What are the potential consequences of not preprocessing data properly?

Discuss the role of the recipes package in data preprocessing.

What is the difference between normalization and standardization in feature scaling?

Explain the concept of downsampling and upsampling in the context of imbalanced datasets.