Try It Yourself - SyntaxStudy Editor

HTML / CSS / JS

# Creating vectors
nums  <- c(4, 8, 15, 16, 23, 42)
words <- c("apple", "banana", "cherry")
flags <- c(TRUE, FALSE, TRUE, TRUE)

# Sequences and repetitions
seq1  <- 1:10                        # 1 2 3 ... 10
seq2  <- seq(0, 1, by = 0.25)        # 0.00 0.25 0.50 0.75 1.00
seq3  <- seq(2, 20, length.out = 5)  # 5 evenly spaced values
reps  <- rep(c(1, 2), times = 3)     # 1 2 1 2 1 2
reps2 <- rep(c(1, 2), each  = 3)     # 1 1 1 2 2 2

# Element-wise arithmetic
a <- c(1, 2, 3, 4)
b <- c(10, 20, 30, 40)
a + b       # 11 22 33 44
b - a       # 9 18 27 36
a * b       # 10 40 90 160
b / a       # 10 10 10 10
a ^ 2       # 1  4  9 16
sqrt(b)     # 3.16 4.47 5.48 6.32

# Logical operations (element-wise)
a > 2       # FALSE FALSE TRUE TRUE
a == 2      # FALSE TRUE  FALSE FALSE

# Subsetting
nums[1]        # 4   (1-based)
nums[c(1, 3)]  # 4 15
nums[-2]       # drop the 2nd element: 4 15 16 23 42
nums[nums > 15]  # 16 23 42  — logical subsetting

# Named vectors
ages <- c(Alice = 30, Bob = 25, Carol = 35)
ages["Bob"]    # 25
names(ages)    # "Alice" "Bob" "Carol"