Take last n elements in vector

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Tiffany 2022-10-19

评论： Tiffany 2022-10-20

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!

Eric Delgado 2022-10-19

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 2022-10-20

This worked. Thanks so much!

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