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diff .cms/lib/codemirror/mode/r/index.html @ 0:78edf6b517a0 draft
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author | Coffee CMS <info@coffee-cms.ru> |
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date | Fri, 11 Oct 2024 22:40:23 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.cms/lib/codemirror/mode/r/index.html Fri Oct 11 22:40:23 2024 +0000 @@ -0,0 +1,88 @@ +<!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="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png" alt=""></a> + + <ul> + <li><a href="../../index.html">Home</a> + <li><a href="../../doc/manual.html">Manual</a> + <li><a href="https://github.com/codemirror/codemirror5">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"> +X <- list(height = 5.4, weight = 54) +cat("Printing objects: "); print(X) +print("Accessing individual elements:") +cat(sprintf("Your height is %s and your weight is %s\n", X$height, X$weight)) + +# Functions: +square <- function(x) { + return(x * x) +} +cat(sprintf("The square of 3 is %s\n", square(3))) + +# In R, the last expression in a function is, by default, what is +# returned. The idiomatic way to write the function is: +square <- function(x) { + x * x +} +# or, for functions with short content: +square <- function(x) x * x + +# Function arguments with default values: +cube <- function(x = 5) x * x * x +cat(sprintf("Calling cube with 2 : %s\n", cube(2)) # will give 2^3 +cat(sprintf("Calling cube : %s\n", cube()) # will default to 5^3. + +powers <- function(x) list(x2 = x*x, x3 = x*x*x, x4 = x*x*x*x) + +cat("Powers of 3: "); print(powers(3)) + +# Data frames +df <- data.frame(letters = letters[1:5], '#letter' = 1:5) +print(df$letters) +print(df$`#letter`) + +# Operators: +m1 <- matrix(1:6, 2, 3) +m2 <- m1 %*% t(m1) +cat("Matrix product: "); print(m2) + +# Assignments: +a <- 1 +b <<- 2 +c = 3 +4 -> d +5 ->> e +</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>