R Basics for datasciencecoursera

README.md

Working notes for the intro to Data Science through Coursera

The Data Scientist’s Toolbox

R Basics Guide

We will make working notes on using R throughout this project.

You can find helpful resources all over the web:

• RStudio cheat sheets
• How to share data with a statistician

Console commands

Install When installing packages make sure to check your exact spelling within commands. For example, the install option requires the plural 'install.packages()' but will not accept singluar 'install.package()'

install.packages('ggplot2')
install.packages(c('ggplot2','devtools','lme4'))

Load

library()
library(ggplot2)

What packages are installed?

installed.packages()
library

Updating packages

old.packages()
update.packages()
install.packages('packagename')

Unload packages

detach()
detach("package:ggplot2", unload=TRUE)

Uninstall packages

remove.packages()
remove.packages('ggplot2')

Check current versions and copyrights

version
sessionInfo()
library(packageName)

For example, running library(KernSmooth) gives us:

KernSmooth 2.23 loaded Copyright M. P. Wand 1997-2009

Help

help()
help(package='ggplot2')

Vignettes

browseVignettes()
browseVignettes('ggplot2')