Compensate the vector with the last entry

I have a length L vector contains some numbers, I want to compensate this vector to length K, where K > L, with repeating the last entry of the vector. For example, the vector is [2 4 7 3], after compensate, it will be [2 4 7 3 3 3 3 3]. I hope there is an efficient way to do so because I actually have more than 10^4 vectors to compensate.

Thanks,

[Stephen23]

"I hope there is an efficient way to do so because I actually have more than 10^4 vectors to compensate."

Do you really have 1e4 separate vectors stored in the workspace? How did you get them all there?

Answer 1

[Stephen23]

V = [2,4,7,3];
K = 8;
V(end+1:K) = V(end)

V = 1×8

2 4 7 3 3 3 3 3