R Introduction

A discussion on various ways to construct a matrix in R.

A matrix is a collection of data elements arranged in a two-dimensional rectangular layout. The following is an example of a matrix with 2 rows and 3 columns.

A discussion of the character data type in R.

A discussion of the complex data type in R.

A discussion of the logical data type in R.

A discussion of the integer data type in R.

A discussion of the numeric data type in R.

There are several basic R data types that are of frequent occurrence in routine R calculations. Though seemingly innocent, they can still deliver surprises. Instead of chewing through the language specification, we will try to understand them better by direct experimentation with the R code.

A tutorial on import data frame from external data files into the workspace.

A tutorial on how to retrieve vector slices by listing the names of the vector members in a character string vector.