Given a reference set R of elements (each unique but identical in type), and a list V of elements drawn from the set R, possibly with duplicates, return K such that R(K) == V. The elements of R may be numeric or string.

For example, refIndex(9:-1:5,[7 5 6 5]) should return [3 5 4 5].

Solve

Solution Stats

1087 Solutions

305 Solvers

Last Solution submitted on Feb 02, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers305

Matthew Bolyard 子浩 Ruben William

Suggested Problems

More from this Author11

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!