Introduction to R & Vectors

Understand R syntax, vector creation using c(), and basic statistical functions.

What is R?

R is a programming language designed specifically for statistical computing, data mining, and graphics. Widely used across pharmaceuticals, academic research, finance, and marketing analytics, R treats vectors as first-class citizens.

In R, the standard assignment operator is <- (although = also works, <- is the idiomatic standard).

Vector Operations in R

Try It Yourself »

# Creating vectors with c() (combine)
temperatures <- c(22.4, 25.1, 19.8, 28.3, 24.0)

# Statistical calculations
avg_temp <- mean(temperatures)
med_temp <- median(temperatures)
sd_temp  <- sd(temperatures)

cat("Mean Temp:", avg_temp, "\n")
cat("Standard Deviation:", round(sd_temp, 2), "\n")

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Test Yourself With Exercise

+15 XP

Which function is used in R to combine values into a vector?

Next: R Data Frames & Subsetting »