Creating Vectors in R InputĬreates a vector using elements separated by commasĬreates a vector of integers between two numbersĬreates a vector between two numbers, with a specified interval between each element.Ĭreates a vector of given elements repeated a number of times.Ĭreates a vector of given elements repeating each element a number of times. In other words, a vector is a simple tool to store data. Vectors are one-dimension arrays that can hold numeric data, character data, or logical data. Part of magrittr package, it’s used to pass objects to functions Operators in R Arithmetic Operators in R Operator

setwd(“C://file/path”): Changes your current working directory to a desired file path.

getwd(): Returns your current working directory.

Go to File > Help > Markdown Quick Reference to open the Markdown Quick Reference in your help pane. Go to File > Help > Cheatsheets > R Markdown Cheat Sheet to open the main R Markdown cheatsheet, pictured above. An example of a working directory looks like ”C://file/path' Use the cheatsheets that are built into the RStudio IDE to jog your memory about R Markdown. You can learn how to create headings, lists, links, images, code blocks, and more with Markdown syntax. That is, it's the default location for importing and exporting files. Markdown Guide Basic Syntax is a webpage that introduces the essential elements of Markdown, the simple and easy-to-use markup language for formatting text documents. The working directory is a file path that R will use as the starting point for relative file paths.

library(tidyverse): Lets you load and use packages (e.g., tidyverse package).

install.packages(“tidyverse”): Lets you install new packages (e.g., tidyverse package).

They increase the power of R by improving existing base R functionalities, or by adding new ones. R packages are collections of functions and tools developed by the R community.

class(my_df): Returns the class of a given object.

str(my_df): Returns the structure and information of a given object.

?'max': Returns documentation associated with a given input.

?tidyverse: Shows the documentation for the tidyverse package.

Pandocs enhanced version of Markdown includes syntax for tables, definition lists, metadata. ?max: Shows the help documentation for the max function Pandoc can also produce PDF output: see creating a PDF, below.

R markdown cheat sheet