R Program to Check if a Vector Contains the Given Element
Tests membership using %in%.
Program (R)
v <- c(10, 20, 30) print(25 %in% v)
Expected Output
[1] FALSE
Vector Operations and Utilities
Key takeaway: Practice R with 53+ runnable code examples — vectors, strings, math, data frames, recursion, and sampling — with expected output to verify instantly.
R is a programming language for statistical computing and data analysis. These examples are for data science students, researchers, analysts, and anyone learning R for coursework or work projects.
Last updated: October 2026 · 53 examples · All platforms
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- Study the code and expected output
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R Program to Add Two Vectors
Adds two numeric vectors element-wise.
Program (R)
a <- c(1, 2, 3) b <- c(4, 5, 6) print(a + b)
Expected Output
[1] 5 7 9
Find Sum, Mean and Product of Vector in R Programming
Computes sum, mean, and product of a numeric vector.
Program (R)
x <- c(1, 2, 3, 4)
cat("Sum:", sum(x), "\n")
cat("Mean:", mean(x), "\n")
cat("Product:", prod(x), "\n")Expected Output
Sum: 10 Mean: 2.5 Product: 24
R Program to Find Minimum and Maximum
Uses min() and max() on a numeric vector.
Program (R)
x <- c(5, 3, 8, 1)
cat("Min:", min(x), "\n")
cat("Max:", max(x), "\n")Expected Output
Min: 1 Max: 8
R Program to Sort a Vector
Sorts a numeric vector in ascending order.
Program (R)
x <- c(5, 3, 8, 1) print(sort(x))
Expected Output
[1] 1 3 5 8
R Program to Find the Sum of Natural Numbers
Sums the first N natural numbers.
Program (R)
n <- 100 print(sum(1:n))
Expected Output
[1] 5050
Sum of Natural Numbers Using Recursion
Sums 1..N recursively.
Program (R)
sumNat <- function(n) if (n <= 1) n else n + sumNat(n-1) print(sumNat(10))
Expected Output
[1] 55
R Program to Count the Number of Elements in a Vector
Counts elements using length.
Program (R)
v <- c(10, 20, 30, 40) print(length(v))
Expected Output
[1] 4
R Program to Find Index of an Element in a Vector
Finds index using which.
Program (R)
v <- c(10, 20, 30) print(which(v == 20))
Expected Output
[1] 2
R Program to Access Values in a Vector
Accesses elements via indexing.
Program (R)
v <- c(10, 20, 30) print(v[c(1,3)])
Expected Output
[1] 10 30
R Program to Find the Statistical Mode
Computes mode via table and which.max.
Program (R)
x <- c(1,2,2,3,3,3,4) tbl <- table(x) print(as.integer(names(tbl)[which.max(tbl)]))
Expected Output
[1] 3
R Program to Add Leading Zeros to Vector
Formats integers with fixed width using sprintf.
Program (R)
x <- c(5, 42, 300)
print(sprintf("%03d", x))Expected Output
[1] "005" "042" "300"
Frequently Asked Questions
Use Rscript from your terminal. Install R from CRAN, save as
main.R, run Rscript main.R. Or use RStudio. No, base R only. All examples use built-in functions for maximum portability.
Yes, absolutely. Copy, tweak inputs, observe outputs — experimentation is the fastest way to learn.
Yes, fully cross-platform. R runs on Windows, macOS, and Linux. Works with R 3.6+.
Learn R the Practical Way
R ranks among the top 20 languages on the TIOBE Index, dominant in academia and data science.
Topics Covered
- Vectors, lists, and data frames
- String manipulation and text processing
- Math, statistics, and random sampling
- Control flow — if/else, for, while
- Recursion and custom functions
- File I/O and formatted output
Who Is This For?
- Data science students — coursework and R-based exams
- Researchers — statistical analysis for papers
- Analysts — data wrangling skills for work
- Career switchers — transitioning into data roles
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