Labs for Introduction to R for Data Science.
Interactive Exercises for R: The true basics.
Interactive Exercises for Basic Data Types.
Interactive exercises for Create and Name Vectors
Interactive Exercises for Vector Arithmetic
Interactive Exercises on Subsetting Vectors
Interactive exercises for Create and Name Matrices
Interactive exercises for Subsetting Matrices
Interactive exercises for Matrix Arithmetic
Interactive exercises for Factors
Interactive Exercises on Create and Name Lists.
Interactive Exercises on Subset and Extend Lists.
Interactive Exercises on Explore the Data Frame
Interactive Exercises on Subset, extend and sort your data frame
Interactive Exercises on Basic Graphics
Interactive Exercises on Customizing your plots
Interactive Exercises on Multiple plots