\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{sankyuu}
\pdfinfo{
  /Title (pandas.pdf)
  /Creator (Cheatography)
  /Author (sankyuu)
  /Subject (pandas 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}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{pandas Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{sankyuu} via \textcolor{DarkBackground}{\uline{cheatography.com/144187/cs/30916/}}}
\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}sankyuu \\
  \uline{cheatography.com/sankyuu} \\
  \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 26th February, 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*}{2}

\begin{tabularx}{8.4cm}{x{4.32 cm} x{3.68 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Import Data CSV and Excel}}  \tn
% Row 0
\SetRowColor{LightBackground}
df = \seqsplit{pd.read\_csv('filename.csv')} & Read CSV into a Pandas DataFrame \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
df = \seqsplit{pd.to\_csv('filename.csv')} & Export Pandas DataFrame to CSV \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
df = \seqsplit{pd.read\_excel('filename.xlsx'}, sheet\_name="Sheet 1") & Read Excel into a Pandas DataFrame \tn 
% Row Count 10 (+ 4)
% Row 3
\SetRowColor{white}
df = \seqsplit{pd.to\_excel('filename.xlsx'}, sheet\_name="Sheet 1") & Export Pandas DataFrame to Excel \tn 
% Row Count 14 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Import Options: \newline  \newline header=False, Index=False, usecols=(5,6) \newline  \newline Can also read CSV / HTML  / JSON}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.96 cm} x{5.04 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Initial look into the DataFrame}}  \tn
% Row 0
\SetRowColor{LightBackground}
df.head(5) & Reads the first 5 rows \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
df.tail(5) & Reads the last 5 rows \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
df.shape() & Gives the number of columns and rows in the DataFrame \tn 
% Row Count 5 (+ 3)
% Row 3
\SetRowColor{white}
df.dtypes & Gives the datatypes for all the columns \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
df{[}'ColumnName'{]}.dtypes & Gives the datatypes for a single column \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{df.head(-5) can retrieve last 5 lines similar to list{[}-5{]} retrieves the 5th last.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Change Column Data Type}}  \tn
% Row 0
\SetRowColor{LightBackground}
df{[}'col'{]} = df{[}'col'{]}.str.rstrip('\%').astype('float') / 100.0 & Remove \% sign, convert to float and divide by 100 \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
df{[}'col'{]} = df{[}'col'{]}.str{[}:-1{]}.astype('float') / 100.0 & Blindly removing the last char - goes to the last character \tn 
% Row Count 7 (+ 3)
% Row 2
\SetRowColor{LightBackground}
df{[}'Column1'{]}= df{[}'Column1'{]}.astype(float) & Change 'Column1' to float \tn 
% Row Count 10 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Re-Order Colums}}  \tn
% Row 0
\SetRowColor{LightBackground}
df = df{[}{[}'Column3', 'Column2', 'Column1'{]}{]} & Re-orders the columns to the order specified in this list \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Dealing with NAN values}}  \tn
% Row 0
\SetRowColor{LightBackground}
df= \seqsplit{df.fillna(method='ffill')} & Fills blank values using forward fill method \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
df= \seqsplit{df.fillna(method='bfill')} & Fills blank values using backwards fill method \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{df.dropna(inplace=True)} & Removes rows with no values \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Forward filling means fill missing values with last cell with value in the column. Backward filling means fill missing values with next cell with value.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Padding Values With Zero's}}  \tn
% Row 0
\SetRowColor{LightBackground}
df{[}'Column1'{]} = df{[}'Column1'{]}.astype(str).str.zfill(6) & Sets the numbe to six (6) long, which adds zeros \tn 
% Row Count 4 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Obviously uses string since 0009 cannot be a valid number.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Filter Column}}  \tn
% Row 0
\SetRowColor{LightBackground}
df2= df{[}(df{[}'Column1'{]} \textgreater{}= some\_number){]} & Filter DataFrame by certain value and putting it in another df. \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
df2 = df{[}(df{[}"Name"{]}=="Tom") \& (df{[}"Age"{]}==42){]} & Filter DataFrame by mulitple value and putting it in another df. \tn 
% Row Count 8 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}