Complement subset in Matlab [duplicate]

Question

This question already has an answer here:

• How do I remove elements at a set of indices in a vector in MATLAB? 1 answer

In R, I can do the following:

v <- 11:20
v[-(4:5)]

and get 11 12 13 16 17 18 19 20, thus all indices except the 4th and 5th.

Is there an equivalent in Matlab's indexing logic?

However I wrap my mind around it, I do not seem to get the correct search terms to google my own result for this fairly elementary question.

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Note: Of course I might use some of the set functions, e.g.

v = 11:20;
v(setdiff(1:length(v), 4:5))

However, this just is not intuitive.

Answer 1

An alternative is to simply remove the elements from the array:

u = v;
u(4:5) = [];

I'm using a temporary variable since I don't know if it's acceptable to modify the original array v or not.

Answer 2

I don't think there is an elegant way, but a more performant might be

v = rand(1,10);
sel = true(1, numel(v));
sel( 4:5 ) = false;
v = v( sel );