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How do I install an R package from source?

...KESmsmsZ6K87PeU+++TI/-Tmp-/Rtmpe3C96p/downloaded_packages’ Updating HTML index of packages in '.Library' Warning message: In install.packages("RJSONIO", repos = "omegahat.org/R", : installation of package 'RJSONIO' had non-zero exit status – Madjoro Sep 24...
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How to set the thumbnail image on HTML5 video?

... <?php $thumbs_dir = 'E:/xampp/htdocs/uploads/thumbs/'; $videos = array(); if (isset($_POST["name"])) { if (!preg_match('/data:([^;]*);base64,(.*)/', $_POST['data'], $matches)) { die("error"); } $data = $matches[2]; $data ...
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How should I choose an authentication library for CodeIgniter? [closed]

...t hook into CI's validation system Kinda unintuitive status (role) system (indexes upside down - impractical) Uses potentially unsafe sha1 hashing Fresh Powered Pros Small footprint (6 files) Cons Lacks a lot of essential features. Dealbreaker! Everything is hard-coded. Dealbreaker! Redux / ...
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How to get index using LINQ? [duplicate]

...(such as Dictionary or HashSet) are not. Therefore, LINQ does not have an IndexOf method. However, you can write one yourself: ///<summary>Finds the index of the first item matching an expression in an enumerable.</summary> ///<param name="items">The enumerable to search.</pa...
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How do you serialize a model instance in Django?

... But in response you are required to index zero element of the JSON object to get to the serialized object. Just something to note. – Davor Lucic Oct 1 '11 at 18:11 ...
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javac not working in windows command prompt

...jdk.java.net/ or http://www.oracle.com/technetwork/java/javase/downloads/index.html reference thread for JDK VS JRE What is the difference between JDK and JRE? share | improve this answer ...
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What browsers support HTML5 WebSocket API?

... XSockets.NET SuperWebSocket Nugget Alchemy-Websockets Fleck SignalR In PHP: Ratchet phpwebsocket. Extendible Web Socket Server phpdaemon In Python: pywebsockets websockify gevent-websocket, gevent-socketio and flask-sockets based on the former Autobahn Tornado In C: libwebsockets In ...
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C++ templates Turing-complete?

..., int N, typename = void> struct GetItem { static_assert(N > 0, "index cannot be negative"); static_assert(GetSize<List>::value > 0, "index too high"); typedef typename GetItem<typename List::tail, N-1>::type type; }; template<typename List> struct GetItem<...
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Index of Currently Selected Row in DataGridView

It's that simple. How do I get the index of the currently selected Row of a DataGridView ? I don't want the Row object, I want the index (0 .. n). ...
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Which regular expression operator means 'Don't' match this character?

*, ?, + characters all mean match this character. Which character means 'don't' match this? Examples would help. 4 Answers...