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multi level indexing acess

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ar fa
ar fa 2015-6-14
编辑： Walter Roberson 2015-6-14
I want to get output from below code but Matlab thrown Error:
[1 2 3 4](2)
My desired output is 2.
Note: I need one line answer without using any function.
Thanks

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回答（2 个）

Walter Roberson
Walter Roberson 2015-6-14
编辑：Walter Roberson 2015-6-14
http://uk.mathworks.com/matlabcentral/answers/38787-what-can-be-programmed-without-any-built-in-functions
I would probably use something like:
Index = @(V,K) V(K);
and then Index([1 2 3 4],2)
If I felt especially obscure there would always be
subsref([1 2 3 4], struct('type','()','subs', {[2]})
which is what will happen internally
Azzi Abdelmalek
Azzi Abdelmalek 2015-6-14
编辑：Azzi Abdelmalek 2015-6-14
v=[1 2 3 4]
v(2)
If you want one line, then just write
v=2

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