\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
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\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{zflow}
\pdfinfo{
  /Title (b1-zorianflowers-week08-cheatsheet.pdf)
  /Creator (Cheatography)
  /Author (zflow)
  /Subject (B1\_zorianflowers\_week08\_cheatsheet Cheat Sheet)
}

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% This two commands together give roughly
% the right line height in the tables
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% 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}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{B1\_zorianflowers\_week08\_cheatsheet Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{zflow} via \textcolor{DarkBackground}{\uline{cheatography.com/127367/cs/24779/}}}
\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}zflow \\
  \uline{cheatography.com/zflow} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 13th October, 2020.\\
   Updated 13th October, 2020.\\
   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*}{4}

\begin{tabularx}{3.833cm}{x{1.27021 cm} x{2.16279 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Pandas}}  \tn
% Row 0
\SetRowColor{LightBackground}
import pandas as pd & pd.series({[}values{]}) \{\{nl\}\} ad = \{\} \{\{nl\}\} area = pd.series(ad) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Retrieving Values & area{[}"a"{]} \{\{nl\}\} To see all keys: \{\{nl\}\}  area.keys() \{\{nl\}\} data.items() \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
Dataframe as dictionary & area = pd.series(\{...\}) \{\{nl\}\}  data = pd.Dataframe(\{"area":area,\}) \tn 
% Row Count 9 (+ 3)
% Row 3
\SetRowColor{white}
Opening data & import pandas as pd \{\{nl\}\} import numpy as np \{\{nl\}\} \{\{nl\}\} dat = \seqsplit{np.genfromtxt('phoneBook.csv'},delimiter =',',skip\_header=1,dtype='\textless{}U16') \tn 
% Row Count 15 (+ 6)
% Row 4
\SetRowColor{LightBackground}
Grouping & index = \seqsplit{pd.MultiIndex.from\_tuples(index)} \{\{nl\}\}  index \{\{nl\}\}  \{\{nl\}\}  pop = pop.reindex(index) pop \{\{nl\}\}  \{\{nl\}\}  pop{[}:, 2010{]} \tn 
% Row Count 21 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{p{0.75526 cm} x{2.67774 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Merging and Joining}}  \tn
% Row 0
\SetRowColor{LightBackground}
Merging & pd.merge() \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
 & df = pd.merge() \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Many to one & Duplicate entries \{\{nl\}\} display('df3', 'df4', 'pd.merge(df3, df4)') \tn 
% Row Count 5 (+ 3)
% Row 3
\SetRowColor{white}
Merge Key & Add on = "key column name" \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Drop & .drop('name', axis=1) \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.16722 cm} x{2.26578 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Aggregation and Grouping}}  \tn
% Row 0
\SetRowColor{LightBackground}
Aggregation Functions & count() | Total number of items \{\{nl\}\} first(), last()  | First and last item \{\{nl\}\} mean(), median() | Mean and median  \{\{nl\}\}	min(), max() | Minimum and maximum  \{\{nl\}\} std(), var() | Standard deviation and variance \{\{nl\}\} mad() | Mean absolute deviation  \{\{nl\}\} prod() | Product of all items    \{\{nl\}\} sum() | Sum of all items \tn 
% Row Count 13 (+ 13)
% Row 1
\SetRowColor{white}
Grouping & name.groupy("key") \tn 
% Row Count 14 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.16722 cm} x{2.26578 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Pivot Tables}}  \tn
% Row 0
\SetRowColor{LightBackground}
Pivot Tables by Hand & Require groupby \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Pivot & name.pivot\_table("what is taking the action", index = "groupby row" , columns = "groupbycol") \tn 
% Row Count 6 (+ 4)
% Row 2
\SetRowColor{LightBackground}
Aggregation Functions & name.pivot\_table( index = "groupby row" , columns = "groupbycol" , aggfunc=\{'taking action':sum, 'taking action':'mean'\}) \tn 
% Row Count 11 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{3.833cm}{x{1.40753 cm} x{2.02547 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Matplotlib}}  \tn
% Row 0
\SetRowColor{LightBackground}
Line Plots & Set linspace \{\{nl\}\} x = np.linspace(0, 10, 100) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Creating figure and axis & fig = plt.figure() \{\{nl\}\} ax = plt.axes() \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
Add graph and x,y & x = np.linspace(0, 10, 1000)  \{\{nl\}\} y = np.sin(x)  \{\{nl\}\} plt.plot(x,y)  \{\{nl\}\} plt.show()  \{\{nl\}\} \tn 
% Row Count 10 (+ 5)
% Row 3
\SetRowColor{white}
Changing linestyle and color & plt.plot(x,y,linestyle='-{}-', color='c') \tn 
% Row Count 12 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Multile curves and a legend & plt.plot(x,np.sin(x-.5),color='g',label="sin(x-0.5)") \{\{nl\}\}\{\{nl\}\}	 plt.plot(x,np.sin(x-1),color='pink', label = "sin(x-1)") \{\{nl\}\}\{\{nl\}\}	 plt.plot(x,np.cos(x-0.5),color='c',linestyle='-{}-',label = "cos(x-0.5)") plt.legend() plt.show() \tn 
% Row Count 23 (+ 11)
% Row 5
\SetRowColor{white}
Adding limits & plt.xlim(-5,12) \{\{nl\}\}	 plt.ylim(-2,2) \tn 
% Row Count 25 (+ 2)
% Row 6
\SetRowColor{LightBackground}
Scatter Plot & x = \seqsplit{np.random.randint(-1000},1000,150) \{\{nl\}\}	 y = \seqsplit{np.random.randint(-1000},1000,150) plt.scatter(x,y) \{\{nl\}\} \{\{nl\}\}	 or plt.plot(x,y,'o'); \tn 
% Row Count 31 (+ 6)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{3.833cm}{x{1.40753 cm} x{2.02547 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{3.833cm}}{\bf\textcolor{white}{Matplotlib (cont)}}  \tn
% Row 7
\SetRowColor{LightBackground}
Other ways for plt & plt.xlabel() → ax.set\_xlabel() \{\{nl\}\} plt.ylabel() → ax.set\_ylabel() \{\{nl\}\}	lt.xlim() → ax.set\_xlim() \{\{nl\}\} plt.ylim() → ax.set\_ylim() \{\{nl\}\} plt.title() → ax.set\_title() \tn 
% Row Count 8 (+ 8)
% Row 8
\SetRowColor{white}
Histograms & fig = plt.figure() \{\{nl\}\} ax = plt.axes() \{\{nl\}\} ax.hist(data); \tn 
% Row Count 11 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}