% Created 2011-05-23 Mon 14:23 \documentclass[presentation]{beamer} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage{fixltx2e} \usepackage{graphicx} \usepackage{longtable} \usepackage{float} \usepackage{wrapfig} \usepackage{soul} \usepackage{textcomp} \usepackage{marvosym} \usepackage{wasysym} \usepackage{latexsym} \usepackage{amssymb} \usepackage{hyperref} \tolerance=1000 \usepackage[english]{babel} \usepackage{ae,aecompl} \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet} \usepackage{listings} \lstset{language=Python, basicstyle=\ttfamily\bfseries, commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, showstringspaces=false, keywordstyle=\color{blue}\bfseries} \providecommand{\alert}[1]{\textbf{#1}} \title{} \author{FOSSEE} \date{} \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} \begin{frame} \begin{center} \vspace{12pt} \textcolor{blue}{\huge Loading Data from Files} \end{center} \vspace{18pt} \begin{center} \vspace{10pt} \includegraphics[scale=0.95]{../images/fossee-logo.png}\\ \vspace{5pt} \scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ \scriptsize Funded by National Mission on Education through ICT\\ \scriptsize MHRD,Govt. of India\\ \includegraphics[scale=0.30]{../images/iitb-logo.png}\\ \end{center} \end{frame} \begin{frame} \frametitle{Objectives} \label{sec-2} At the end of this tutorial, you will be able to, \begin{itemize} \item Read data from files with a single column of data. \item Read data from files with multiple columns seperated by spaces and other delimiters. \end{itemize} \end{frame} \begin{frame} \frametitle{Exercise 1} \label{sec-3} Read the file \verb~pendulum\_semicolon.txt~ which contains the same data as \verb~pendulum.txt~ , but the columns are seperated by semi-colons instead of spaces.Use the IPython help to see how to do this. \end{frame} \begin{frame} \frametitle{Summary} \label{sec-4} In this tutorial,we have learnt to- \begin{itemize} \item Read data from files, containing a single column of data using the \verb~loadtxt~ command. \item Read multiple columns of data, separated by spaces or other delimiters by adding additional arguments to the \verb~loadtxt~ command. \end{itemize} \end{frame} \begin{frame} \frametitle{Evaluation} \label{sec-5} \begin{enumerate} \item ``loadtxt`` can read data only from a file with one column only. True or False? \item Given a file ``data.txt`` with three columns of data separated by spaces, read it into 3 separate simple sequences. \item Given a file ``data.txt`` with three columns of data separated by ``:'', read it into 3 separate simple sequences. \end{enumerate} \end{frame} \begin{frame} \frametitle{Solutions} \label{sec-6} \begin{enumerate} \item False \item x = loadtxt(``data.txt'', unpack=True) \item x = loadtxt(``data.txt'', unpack=True, delimiter='':'') \end{enumerate} \end{frame} \begin{frame} \begin{block}{} \begin{center} \textcolor{blue}{\Large THANK YOU!} \end{center} \end{block} \begin{block}{} \begin{center} For more Information, visit our website\\ \url{http://fossee.in/} \end{center} \end{block} \end{frame} \end{document}