Learn

R was created in 1993 at the University of Auckland as a free implementation of S — a statistical computing language. Today it powers most academic statistics and a huge chunk of industry data science alongside Python.

cat and print both write to stdout. cat is for clean output (no quotes, no [1] prefix); print is for inspecting objects.

cat("Hello, R!\n")          # Hello, R!
print("Hello, R!")           # [1] "Hello, R!"

Use cat for results that other programs will read; print for interactive exploration.

Comments use #. No semicolons needed; newlines end statements.