Glossary

Glossary

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{:auto_ids} assignment operator
: the symbol (commonly <-) used to assign a value to a variable in R.

console

the interactive command-line interface where R commands are entered and executed.

data frame

a table-like data structure used to store data in rows and columns, where each column can be of a different type.

dplyr

a package that provides a set of functions for efficient and intuitive data manipulation.

environment

a collection of symbol-value pairs (objects) that exist during an R session.

factor

a data type used to represent categorical variables in R.

function

a block of reusable code designed to perform a specific task when called with inputs.

ggplot2

a package that implements the grammar of graphics to create complex data visualizations.

knitr

a package that converts R Markdown documents into reports in various formats by executing the embedded R code.

library

a command used to load a package into the current R session.

list

a data structure that can hold a collection of objects, which may be of different types or structures.

object

an entity in R that stores data or functions, including variables, vectors, data frames, and lists.

package

a collection of R functions, data, and compiled code that extends R’s capabilities.

R

a programming language and environment for statistical computing and graphics.

R Markdown

a document format that integrates text, code, and output to create dynamic and reproducible reports.

reproducible research

the practice of sharing data, code, and documentation so that analyses can be independently verified and repeated.

RStudio

an integrated development environment for R that provides tools for writing, debugging, and visualizing code.

script

a file containing a sequence of R commands that can be executed together.

tidy data

a standardized way of organizing data where each variable is a column and each observation is a row.

variable

a name that stores a value or object in R.

vector

a one-dimensional array that contains elements of the same type.

workspace

the current session’s memory that holds all user-defined objects like variables and functions.