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Editing: index.html
<!doctype html> <title>CodeMirror: R mode</title> <meta charset="utf-8"/> <link rel=stylesheet href="../../doc/docs.css"> <link rel="stylesheet" href="../../lib/codemirror.css"> <script src="../../lib/codemirror.js"></script> <script src="r.js"></script> <style> .CodeMirror { border-top: 1px solid silver; border-bottom: 1px solid silver; } .cm-s-default span.cm-semi { color: blue; font-weight: bold; } .cm-s-default span.cm-dollar { color: orange; font-weight: bold; } .cm-s-default span.cm-arrow { color: brown; } .cm-s-default span.cm-arg-is { color: brown; } </style> <div id=nav> <a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a> <ul> <li><a href="../../index.html">Home</a> <li><a href="../../doc/manual.html">Manual</a> <li><a href="https://github.com/codemirror/codemirror">Code</a> </ul> <ul> <li><a href="../index.html">Language modes</a> <li><a class=active href="#">R</a> </ul> </div> <article> <h2>R mode</h2> <form><textarea id="code" name="code"> # Code from http://www.mayin.org/ajayshah/KB/R/ # FIRST LEARN ABOUT LISTS -- X = list(height=5.4, weight=54) print("Use default printing --") print(X) print("Accessing individual elements --") cat("Your height is ", X$height, " and your weight is ", X$weight, "\n") # FUNCTIONS -- square <- function(x) { return(x*x) } cat("The square of 3 is ", square(3), "\n") # default value of the arg is set to 5. cube <- function(x=5) { return(x*x*x); } cat("Calling cube with 2 : ", cube(2), "\n") # will give 2^3 cat("Calling cube : ", cube(), "\n") # will default to 5^3. # LEARN ABOUT FUNCTIONS THAT RETURN MULTIPLE OBJECTS -- powers <- function(x) { parcel = list(x2=x*x, x3=x*x*x, x4=x*x*x*x); return(parcel); } X = powers(3); print("Showing powers of 3 --"); print(X); # WRITING THIS COMPACTLY (4 lines instead of 7) powerful <- function(x) { return(list(x2=x*x, x3=x*x*x, x4=x*x*x*x)); } print("Showing powers of 3 --"); print(powerful(3)); # In R, the last expression in a function is, by default, what is # returned. So you could equally just say: powerful <- function(x) {list(x2=x*x, x3=x*x*x, x4=x*x*x*x)} </textarea></form> <script> var editor = CodeMirror.fromTextArea(document.getElementById("code"), {}); </script> <p><strong>MIME types defined:</strong> <code>text/x-rsrc</code>.</p> <p>Development of the CodeMirror R mode was kindly sponsored by <a href="https://twitter.com/ubalo">Ubalo</a>.</p> </article>
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