\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{solisoleille (soleille01)}
\pdfinfo{
  /Title (r-beginner-syntax.pdf)
  /Creator (Cheatography)
  /Author (solisoleille (soleille01))
  /Subject (R - Beginner Syntax Cheat Sheet)
}

% Lengths and widths
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\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
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\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{7772A3}
\definecolor{LightBackground}{HTML}{F6F6F9}
\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 - Beginner Syntax Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{solisoleille (soleille01)} via \textcolor{DarkBackground}{\uline{cheatography.com/130728/cs/33528/}}}
\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}solisoleille (soleille01) \\
  \uline{cheatography.com/soleille01} \\
  \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 7th August, 2022.\\
   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}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{General variable assignment}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Assignment statements: \newline % Row Count 1 (+ 1)
`var\_name = new\_value` OR \newline % Row Count 2 (+ 1)
`var\_name \textless{}- new\_value`% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Variables names:}} The variable name must start with a letter and can contain numbers and letters as well as the special characters underscore and period. \newline {\bf{Note:}} Contrary to other languages R does not have a command for declaring a variable, but instead a variable is created once a value is assigned to it.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.74655 cm} x{4.23045 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Arithmetic operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
+ & Addition - adds together two values. \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
- & Subtraction - subtracts one value from another. \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
* & Multiplication - multiplies two values together. \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
/ & Division - divides one value from the other. \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
** OR \textasciicircum{} & Exponential - to the power of the next value \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{Arithmetic operators:}} Used to perform common mathematical operations. \newline {\bf{Precedence:}} Precedence and associativity are as normal as in maths.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Access variables of a dataframe}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Calling individual variables from a dataframe: \newline % Row Count 1 (+ 1)
`dataframe\$var\_name`% Row Count 2 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Some misc commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
cat() & Prints all of its comma separated arguments (concatenating them). \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{read.csv()} & Reads a csv file (in the same location) \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
head() & To get a broad overview of the variables that are contained in the dataframe as well as the different variable levels (first 6 rows(?)) \tn 
% Row Count 10 (+ 5)
% Row 3
\SetRowColor{white}
\seqsplit{summary()} & Gives the summary statistics of a variable - min, 1st quartile, median, mean, 3rd quartile, maximum \tn 
% Row Count 14 (+ 4)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{as.factor()} & Convert to categorical variable \tn 
% Row Count 16 (+ 2)
% Row 5
\SetRowColor{white}
\seqsplit{barplot()} & Creates a barplot for the given table \tn 
% Row Count 18 (+ 2)
% Row 6
\SetRowColor{LightBackground}
table() & {[}TBC{]} \tn 
% Row Count 19 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{{\bf{Internal help option:}} Writing ? in front of the command opens R documentation of the command.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Vector creation and assignment}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Creating a list of numbers manually: \newline % Row Count 1 (+ 1)
`vector\_name \textless{}- c(no1, no2, no3, {\emph{etc.}})` \newline % Row Count 2 (+ 1)
Creating a list of numbers in a sequence: \newline % Row Count 3 (+ 1)
`vector\_name \textless{}- seq(start, stop, step)` (starts from start and ends at exactly stop at increments of step)% Row Count 6 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Vector:}} A vector is a 1D set of the same type of object. Most often, a vector will simply be a sequence of numbers. \newline {\bf{Note:}} Similarly to variables, a vector is created once a value is assigned to it.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Comments}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Single line comments: \newline % Row Count 1 (+ 1)
`\# Comment1` \newline % Row Count 2 (+ 1)
`code \# Comment2`% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Comments:}} Comments are ignored by the computer, they exist simply to make the code easier for people to understand.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Indexing vectors}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Getting 1 index: \newline % Row Count 1 (+ 1)
`vec\_name{[}index\_no{]}` \newline % Row Count 2 (+ 1)
Getting multiple index in a row: \newline % Row Count 3 (+ 1)
`vec\_name{[}start\_index:end\_index{]}`% Row Count 4 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Note:}} The indexing is 1-based so it starts at 1 instead of 0 like most other programming languages do.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Basic math functions}}  \tn
% Row 0
\SetRowColor{LightBackground}
log(x) & Natural log of x \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
exp(x) & Exponential of x \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
max(x) & Largest element in the set x \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
min(x) & Smallest element in the set x \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
sum(x) & Sum all values in x \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
mean(x) & Mean of x \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
median(x) & Median of x \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
round(x,n) & Round x to n decimal places \tn 
% Row Count 8 (+ 1)
% Row 8
\SetRowColor{LightBackground}
length(x) & Number of values in x \tn 
% Row Count 9 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}