Session 12 – Open Data Tools

Open Data Tools 
https://www.opendatasoft.de/ – Json, CSV-Data
Q-Gis – Geodaten
http://openrefine.org/ – Datenscraping
OpenRefine  
LINUX Workflow 
– läuft in der Stable version nur mit Java 6 und 7
bei Problemen hilft Java-Version installieren und Alternative auswählen mit:  sudo update-alternatives –config java 
OpenRefine (previously Google Refine) is a tool for data cleaning that runs  through a web browser, and any browser – Safari, Firefox, Chrome, Explorer –  should work fine.  You will need to download Google Refine and install it, and  when you open it, it will run through the browser, but you don’t need an  internet connection, and the data will all be stored on your computer.  
  • Go to the OpenRefine download         page    
  • Click on Linux kit to download the install file    
  • Download and extract    
  • Type ./refine in your terminal and Google Refine will then    open in your web browser.    
  • If it doesn’t open automatically, open a web broswer after you’ve started      the program and go to the URL http://localhost:3333 and you should      see OpenRefine.  
R – Visualsation Tool: R-Studio
LINUX Workflow
 RStudio is a nice interface to the    programming language R. To use RStudio, you need to install both R and RStudio.    
  • Follow the instructions for your distribution         from CRAN. For most distributions, you         can use your package manager (e.g. for Debian/Ubuntu run sudo         apt-get install r-base, and for Fedora run sudo yum install         R) but make sure that you have at least R 3.2.2 (as pre-packaged         versions might be out of date).      
  • To install RStudio, go to         the RStudio Download           page      
  • Under Installers select the version for your distribution.      
  • Once it’s downloaded, double click the file to install it (or sudo dpkg           -i rstudio-x.yy.zzz-amd64.deb at the terminal).      
  • Once it’s installed, open RStudio to make sure it works and you don’t get any error messages.    
// Wer gute R Handbücher haben will kann sich bei mir melden (Martin Koll -> Kontakt siehe pad.potsdam.io/p/Teilnehmerliste)
SQLite    
  Firefox SQLite Plugin. It works through  the web browser Firefox.    
google my maps

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