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Yes, they exist! How they are going to work? I am going to try to explain now.  Very likely you remember I mentioned that the course has 2 hours of preparation and 2 hours of post-lecture homework. You have to earn you credits. So I am giving homeworkto deliver  and I am making you learn other things along the way otherwise you are not going  to even being be  able to download the data or submit your homework. homework ;-).  Say I am pushing your limits to make you learn Latex, Git, R, etc. on during  your ``free'' time. Ok, but how this is going to work?  I have downloaded data from different papers and I am going to ask you to analyze these data and write the following two paragraphs:  \begin{itemize}  \item A Materials and Methods paragraph describing what you did.  \item A Results paragraph describing what you found.   \end{itemize}  You are going to write that using \href{http://latex-project.org/ftp.html}{Latex} and I am going to compile the .tex files you are going to upload to the Geostatistics repository using \textbf{Git}.  This means that you will need to install and get familiar with these two systems.  So I am going to give you a brief intro to them and point you to material you will have to read to actually get things going.