\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{PabloGM} \pdfinfo{ /Title (python-pandas.pdf) /Creator (Cheatography) /Author (PabloGM) /Subject (Python - 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{Python - Pandas Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{PabloGM} via \textcolor{DarkBackground}{\uline{cheatography.com/208640/cs/44743/}}} \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}PabloGM \\ \uline{cheatography.com/pablogm} \\ \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 21st October, 2024.\\ 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}{Import}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{import pandas as pd} \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}{Leer un archivo (csv)}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{df = \seqsplit{pd.read\_csv("../ruta/mi/archivo.csv")}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.73735 cm} x{2.23965 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Leer ciertos datos}} \tn % Row 0 \SetRowColor{LightBackground} df\_columnas = \seqsplit{pd.read\_csv("../archivo.csv"}, usecols={[}'title', 'critics'{]}) & Lee solo las columnas indicadas \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} df{[}'title'{]}{[}0{]} & Lee el primer valor de la columna \tn % Row Count 6 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Guardar un csv}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{df.to\_csv("copia.csv", sep=";", index=False, header=True)} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{Por defecto hace el guardado de los nombres de las columnas pero no est mal ponerlo y el separador es un añadido extra.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Mostrar los datos}} \tn % Row 0 \SetRowColor{LightBackground} df & Muestra tanto primeros como ultimos \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{df.head()} & Muestra los cinco primeros \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{df.tail()} & Muestra los cinco ultimos \tn % Row Count 6 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Uso de datos}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{df\_selection = df{[}{[}'title', 'critic\_score'{]}{]}} \tn \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}{Seleccion de datos .loc}} \tn % Row 0 \SetRowColor{LightBackground} df.loc{[}df.year \textgreater{}= 2018{]} & Seleccionas las pelis que son mayor o igual a 2018 \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} df.loc{[}df.title == 'La pantera', 'critics{]} = 100' & Donde el titulo sea 'La pantera', pone el valor de critics a 100 \tn % Row Count 7 (+ 4) % Row 2 \SetRowColor{LightBackground} df.loc{[}(df.critic\_score \textgreater{} 90) \& (df.people\_score \textgreater{} 80){]} & Coge las filas en las que supere esos dos valores respectivamente \tn % Row Count 11 (+ 4) % Row 3 \SetRowColor{white} df.loc{[}df.title.str.startswith('S'){]} & Coge las peliculas que empizen por S mayuscula \tn % Row Count 14 (+ 3) % Row 4 \SetRowColor{LightBackground} df.loc{[}df.critic\_score \textgreater{} df.critic\_score.median(){]} & Coge todas las que la puntuacion sea mayor a la mediana de la columna \tn % Row Count 18 (+ 4) % Row 5 \SetRowColor{white} df.loc{[}df.title.str.contains("Spider", na=False), 'critic\_score'{]} = 95 & Pone el valor de 95 a aquellas pelis que en el titulo tengan "Spider" \tn % Row Count 22 (+ 4) \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}{Seleccion de datos .iloc}} \tn % Row 0 \SetRowColor{LightBackground} df.iloc{[}0{]} & Coge la primera fila \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} df.iloc{[}0:3{]} & Coge del 0 al 2 \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} df.loc{[}:9, 'description'{]} & Coge desde la 0 hasta la 9 de la columna \tn % Row Count 4 (+ 2) % Row 3 \SetRowColor{white} df.iloc{[}5:11{]}{[}{[}'title', 'year', 'critic\_score'{]}{]} & Coge del 5 al 10 de esas columnas \tn % Row Count 7 (+ 3) % Row 4 \SetRowColor{LightBackground} df.iloc{[}{[}1, 2, 3, 5, 8{]}{]} & Coge esas filas en especifico \tn % Row Count 9 (+ 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}{Summary Functions and Map}} \tn % Row 0 \SetRowColor{LightBackground} df.describe() \# Dentro estan todas & Resumen de las columnas numéricas \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{df.peliculas.unique()} & Coge las peliculas una sola vez \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{df.peliculas.value\_counts()} & Cuenta cuantas veces aparece cada cosa \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} df.critics.mean() & Devuelve la media de la columna \tn % Row Count 8 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{Hay mas método como el 'std', 'min', 'sum', etc.} \tn \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}{Map Function}} \tn % Row 0 \SetRowColor{LightBackground} centered\_price = \seqsplit{reviews.price.map(lambda} p: p - mean\_price) & A cada fila coge el valor de price que es p y le resta la media de la columna \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} n\_trop = \seqsplit{reviews.description.map(lambda} desc: "tropical" in desc).sum() & Si tiene esa descripcion es True (1) por lo que suma ese uno asi fila por fila \tn % Row Count 8 (+ 4) % Row 2 \SetRowColor{LightBackground} df{[}'type'{]}.map(lambda valor: valor.lower()) & Pone los datos en type a minusculas \tn % Row Count 11 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{Map es una función a la cual se recorre cada valor que le pasemos y hace lo que le pongamos} \tn \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}{Apply Function}} \tn % Row 0 \SetRowColor{LightBackground} star\_ratings = reviews.apply(stars, axis='columns') & Hace el metodo 'stars' el cual hace que devuelva un valor a cad fila, dentro del metodo usa reviews.points \tn % Row Count 6 (+ 6) % Row 1 \SetRowColor{white} df{[}'is\_highly\_rated'{]} = df.apply(lambda fila: fila{[}'critic\_score'{]} \textgreater{} 90, axis=1) & Crea una nueva columna que pone a True si se cumple la condicion \tn % Row Count 10 (+ 4) \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}{Agg Function}} \tn % Row 0 \SetRowColor{LightBackground} critic\_score\_agg = df{[}'critic\_score'{]}.agg({[}'mean', 'std'{]}) & Devuelve el valor de los metodos que pongamos dentro \tn % Row Count 3 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.34379 cm} x{3.63321 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Métodos}} \tn % Row 0 \SetRowColor{LightBackground} .idmax() & Devuelve el dato mayor \tn % Row Count 1 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}