Hello, World!
cat("Hello, World!\n")main.R
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R 4.6.1Readymain.RLn 1, Col 1Spaces: 4UTF-8
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R is a language and environment for statistical computing and graphics, created by Ross Ihaka and Robert Gentleman at the University of Auckland, with its first release in the mid-1990s. It is an open-source implementation inspired by the S language, featuring vectorized operations, a rich set of statistical functions, and powerful data visualization capabilities.
R is widely used by statisticians, data scientists, and researchers for data analysis, statistical modeling, machine learning, and producing publication-quality graphics. Its extensive package ecosystem on CRAN, along with frameworks like the tidyverse and ggplot2, makes it a leading tool in academia, bioinformatics, finance, and data science.
main.R is the entry point for each run.
Use the Input panel to pipe standard input to your program when it needs data.
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cat("Hello, World!\n")cat("Enter your name: ")
name <- readLines("stdin", n = 1)
cat("Hello,", name, "\n")fruits <- c("apple", "banana", "cherry")
for (i in seq_along(fruits)) {
cat(i, ":", fruits[i], "\n")
}factorial <- function(n) {
if (n <= 1) return(1)
n * factorial(n - 1)
}
print(factorial(5))result <- tryCatch(
as.integer("abc") + 1,
warning = function(w) {
cat("Warning:", conditionMessage(w), "\n")
NA
}
)
print(result)text <- strsplit("banana", "")[[1]]
counts <- table(text)
print(counts)nums <- c(3, 1, 4, 1, 5)
cat("Sorted:", sort(nums), "\n")
doubled <- sapply(nums, function(x) x * 2)
print(doubled)df <- data.frame(
name = c("Ada", "Bob"),
age = c(36, 28)
)
print(df)
cat("Mean age:", mean(df$age), "\n")v <- 1:10
squares <- v^2
cat("Squares:", squares, "\n")
cat("Even values:", v[v %% 2 == 0], "\n")df <- data.frame(
name = c("Ada", "Bob", "Cy"),
age = c(36, 28, 41)
)
adults <- df[df$age > 30, ]
print(adults)The editor uses Monaco, the engine behind VS Code, with language-aware editing tools and familiar keyboard controls.
Type or paste your code into the editor, then click Run (or press Ctrl/Cmd + Enter) to execute it.
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R is one of 46 single-file compiler scratchpads. Each run submits only main.R; local sibling-file imports are not enabled.
Linked-project languages (23): Node.js, TypeScript, Deno, Python, C, Go, Dart, Swift, Rust, Ruby, PHP, Java, Kotlin, C++, C#, Nim, Crystal, Haxe, Zig, Scala, D, Bun, Objective-C.
Single-file scratchpads (46): Matplotlib, NumPy, pandas, Haskell, Clojure, Perl, Lua, Tcl, jq, Raku, Elixir, Bash, Zsh, Nushell, R, Assembly (NASM), Julia, Octave, Groovy, PowerShell, Visual Basic .NET, Odin, Pascal, Lisp, Erlang, CoffeeScript, COBOL, BASIC, V, Racket, OCaml, Prolog, AWK, Emacs Lisp, Emojicode, Forth, F#, Fortran, Assembly (NASM64), Solidity, Mojo, Ada, WASM (WAT), Gleam, Shell Script (sh), Scheme.
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