Vectors in R

Interactive R tutorial on vectors: create them with c(), index elements, run vectorized maths, and use seq() and rep() — all live in your browser.

A vector is a sequence of values — the fundamental building block of R. Edit and Run each box.

Watch: vectors in one minute

Every step below — creating, indexing and summarising vectors — run live in RStudio, then try each one in the consoles that follow.

Download the R script  ·  ▶ Practice in the playground — or edit and run each snippet below.

Create a vector with c()

c() (for “combine”) glues values into a vector:

Vectors can hold text too:

Maths happens on every element at once

This is R’s superpower — no loops needed:

Pick out elements with [ ]

Square brackets select by position (R counts from 1):

That last line — selecting by a condition — is used constantly in real analysis.

Handy ways to build vectors

Summarise a vector

Your turn

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Next: Data types → — the different kinds of values R stores.