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69dae1ec1c
* Added coding style modes to SimpleMDE * Moved the CodeMirror addon from simplemd to codemirror directory
86 lines
2.5 KiB
HTML
86 lines
2.5 KiB
HTML
<!doctype html>
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<title>CodeMirror: R mode</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../../doc/docs.css">
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<link rel="stylesheet" href="../../lib/codemirror.css">
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<script src="../../lib/codemirror.js"></script>
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<script src="r.js"></script>
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<style>
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.CodeMirror { border-top: 1px solid silver; border-bottom: 1px solid silver; }
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.cm-s-default span.cm-semi { color: blue; font-weight: bold; }
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.cm-s-default span.cm-dollar { color: orange; font-weight: bold; }
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.cm-s-default span.cm-arrow { color: brown; }
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.cm-s-default span.cm-arg-is { color: brown; }
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</style>
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<div id=nav>
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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
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<ul>
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<li><a href="../../index.html">Home</a>
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<li><a href="../../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a href="../index.html">Language modes</a>
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<li><a class=active href="#">R</a>
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</ul>
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</div>
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<article>
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<h2>R mode</h2>
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<form><textarea id="code" name="code">
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# Code from http://www.mayin.org/ajayshah/KB/R/
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# FIRST LEARN ABOUT LISTS --
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X = list(height=5.4, weight=54)
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print("Use default printing --")
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print(X)
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print("Accessing individual elements --")
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cat("Your height is ", X$height, " and your weight is ", X$weight, "\n")
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# FUNCTIONS --
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square <- function(x) {
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return(x*x)
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}
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cat("The square of 3 is ", square(3), "\n")
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# default value of the arg is set to 5.
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cube <- function(x=5) {
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return(x*x*x);
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}
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cat("Calling cube with 2 : ", cube(2), "\n") # will give 2^3
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cat("Calling cube : ", cube(), "\n") # will default to 5^3.
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# LEARN ABOUT FUNCTIONS THAT RETURN MULTIPLE OBJECTS --
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powers <- function(x) {
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parcel = list(x2=x*x, x3=x*x*x, x4=x*x*x*x);
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return(parcel);
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}
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X = powers(3);
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print("Showing powers of 3 --"); print(X);
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# WRITING THIS COMPACTLY (4 lines instead of 7)
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powerful <- function(x) {
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return(list(x2=x*x, x3=x*x*x, x4=x*x*x*x));
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}
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print("Showing powers of 3 --"); print(powerful(3));
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# In R, the last expression in a function is, by default, what is
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# returned. So you could equally just say:
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powerful <- function(x) {list(x2=x*x, x3=x*x*x, x4=x*x*x*x)}
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</textarea></form>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {});
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</script>
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<p><strong>MIME types defined:</strong> <code>text/x-rsrc</code>.</p>
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<p>Development of the CodeMirror R mode was kindly sponsored
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by <a href="https://twitter.com/ubalo">Ubalo</a>.</p>
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</article>
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