Datasets

Download and inspect the datasets used throughout the course.

❗

Data hygiene

Always check column names, missing values, and units before modeling.

Sample workflow

Dataset Inspection

data <- read.csv("dataset.csv")
str(data)
summary(data)
colSums(is.na(data))

Training set

Data used to fit the model.

Validation set

Data used to test model performance.

Target variable

The outcome being predicted.