\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Nancy Augustine}
\pdfinfo{
  /Title (r-basic.pdf)
  /Creator (Cheatography)
  /Author (Nancy Augustine)
  /Subject (R - Basic Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3158B}
\definecolor{LightBackground}{HTML}{F9F0F7}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{R - Basic Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Nancy Augustine} via \textcolor{DarkBackground}{\uline{cheatography.com/67230/cs/16859/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Nancy Augustine \\
  \uline{cheatography.com/nancy-augustine} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 29th August, 2018.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{1.54287 cm} x{3.43413 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Util functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
getwd() & Get working directory \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
setwd() & Set a path in working directory \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
ls() & list the memory content \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
rm() & remove variable from memory \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{install.packages()} & Installs the required package \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
library() & Makes the package available for usage \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
str() & shows the structure of the variable \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
detach() & removes the package \tn 
% Row Count 12 (+ 1)
% Row 8
\SetRowColor{LightBackground}
history() & displays the executed commands in the session \tn 
% Row Count 14 (+ 2)
% Row 9
\SetRowColor{white}
\seqsplit{help.start()} & opens the index page of R \tn 
% Row Count 15 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Data Frame}}  \tn
% Row 0
\SetRowColor{LightBackground}
data\_frame = \seqsplit{data.frame(subjectID=1:5},gender=c("M","F","M","M","F"),score=c(8,3,6,5,5)) & Data frame with elements of equal length \tn 
% Row Count 7 (+ 7)
% Row 1
\SetRowColor{white}
view(data\_frame) & opens the editor \tn 
% Row Count 8 (+ 1)
% Row 2
\SetRowColor{LightBackground}
rbind(data\_frame1,data\_frame2) & combines two data frames vertically/row wise \tn 
% Row Count 11 (+ 3)
% Row 3
\SetRowColor{white}
cbind(data\_frame1,data\_frame2) & combines two data frames horizontally/column wise \tn 
% Row Count 14 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{head(data\_frame)/tail(data\_frame)} & returns the first / last part of the data frame \tn 
% Row Count 17 (+ 3)
% Row 5
\SetRowColor{white}
summary(data\_frame) & returns the descriptive statistics \tn 
% Row Count 19 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.43873 cm} x{2.53827 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Strings}}  \tn
% Row 0
\SetRowColor{LightBackground}
toString(x) & produces a single character string \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
tolower() & converts text to lower case \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
toupper() & converts text to upper case \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
substr() & extract or replace a substring in a character vector \tn 
% Row Count 9 (+ 3)
% Row 4
\SetRowColor{LightBackground}
paste (…, sep = " ", collapse = NULL) & concatenate vectors after character conversion \tn 
% Row Count 12 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.9862 cm} x{1.9908 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Arrays \& Matrices}}  \tn
% Row 0
\SetRowColor{LightBackground}
one\_d\_array\textless{}-array(1:15) & one dimensional array \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
two\_d\_array\textless{}-array(1:15,dim=c(3,4)) & two dimensional array \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
3\_d\_array\textless{}-array(1:15,dim=c(3,4,2)) & three dimensional array \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
mat1=matrix(1:15,nrow=5,ncol=3) & creates a 5x3 matrix \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
cbind(mat1,mat2)/rbind(mat1,mat2) & column bind/row bind \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
solve(mat1)\%*\%mat1 & Inverse of a matrix \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
det(matrix(c(1,0,0,1),2) & determinant of a matrix \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Vectors}}  \tn
% Row 0
\SetRowColor{LightBackground}
scores\textless{}-c(3,4,6,7,5,8,6) & numerical vector \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
names\textless{}-c("Nancy","Selvarani") & character Vector \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
x\textless{}-c(TRUE,TRUE,FALSE) & logical vector \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
mean(scores) & mean of the score vector \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
sd(Scores) & standard deviation of score vector \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
var(scores) & variance of the vector \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
range(scores) & range of the vector \tn 
% Row Count 13 (+ 1)
% Row 7
\SetRowColor{white}
\seqsplit{which.min(vector)/which.max(vector)} & returns the position of the min/max value \tn 
% Row Count 15 (+ 2)
% Row 8
\SetRowColor{LightBackground}
rep(1:4,times=2) & replicates the elements of the vector twice \tn 
% Row Count 18 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Lists}}  \tn
% Row 0
\SetRowColor{LightBackground}
list\textless{}-list(c("Nancy", "selvarani","Aravind"),c(25,23,26)) & creates list with elements of diff data types \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
names(list)\textless{}-c("Names","Age") & names the elements in the list \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Descriptive Statistics}}  \tn
% Row 0
\SetRowColor{LightBackground}
summary(mydata) & description of mydata \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
rowMeans(mydata{[}{]}) & returns the row mean value \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
colSums(mydata{[}{]}) & returns the  column sum \tn 
% Row Count 5 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.63781 cm} x{2.33919 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Hypothesis Testing}}  \tn
% Row 0
\SetRowColor{LightBackground}
t.test(data1) & one sample t test \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
t.test(data1,data2) & two sample t test \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
t.test(pre,post,paired=TRUE) & paired t test \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
prop.test & test for diff between 2 proportions \tn 
% Row Count 6 (+ 2)
% Row 4
\SetRowColor{LightBackground}
cor.test(data1,data2) & correlation \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
wilcox.test(data1) & Wilcox test \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
chisq.test(data1) & chi square test \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
shapiro.test(data1) & test for normality \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
aov() & ANOVA \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.9862 cm} x{1.9908 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Visualization}}  \tn
% Row 0
\SetRowColor{LightBackground}
ggplot(data = NULL, mapping = aes(), ...) & initializes the plot object \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
qplot(data, line=TRUE,...) & \seqsplit{quantile-quantile} plot \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
geom\_density() & density plot \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
geom\_hist() & histogram \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
geom\_point() & Scatter plots \tn 
% Row Count 7 (+ 1)
% Row 5
\SetRowColor{white}
geom\_bar() & Bar graph \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
facet\_grid() & panel layout in a grid \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
barplot(list) & bar plot \tn 
% Row Count 11 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Probability}}  \tn
% Row 0
\SetRowColor{LightBackground}
rnorm(n,mean,sd) & normal distribution \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
runif() & uniform  distribution \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
rpois(n,size) & poisson distribution \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
rbinom(n,size,prob) & Binomial distribution \tn 
% Row Count 5 (+ 2)
% Row 4
\SetRowColor{LightBackground}
rexp(n) & Exponential distribution \tn 
% Row Count 7 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{3.08574 cm} x{1.89126 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Statistics}}  \tn
% Row 0
\SetRowColor{LightBackground}
lm(y\textasciitilde{}x,data=mydata) & linear regression \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
summary(lm(y \textasciitilde{} x1 + x2 + x3, data=mydata)) & multiple regression \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
summary(glm(y \textasciitilde{} x1 + x2 + x3, family="", data=mydata)) & classification \tn 
% Row Count 7 (+ 3)
% Row 3
\SetRowColor{white}
predict(object,mydata) & Regression model \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
cl\$cluster & Clustering \tn 
% Row Count 10 (+ 1)
% Row 5
\SetRowColor{white}
cluster=kmeans(mydata) & K means cluster analysis \tn 
% Row Count 12 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}