Take last n elements in vector

Hello,

I have an input variable that can get changed by the user. I want to index from the end of a vector to essentially end-input

e.g., in pseudocode

a = 1:10;

a = [1,2,3,4,5,6,7,8,9,10]

user_input = 3

correct_answer = end-user_input

correct_answer = 8,9,10

This is what I have, and it works, but is there a cleaner way?

range_a = a((length(a)-user_input):end-1);

Thank you!

Answer 1

[Eric Delgado]

Try this...

a = [1,2,3,4,5,6,7,8,9,10];
N = 3; % user_input

range_a = a(end-N+1:end)

range_a = 1×3

8 9 10

[Tiffany]

This worked. Thanks so much!