MATLAB: Keep index of omited array

keep index of omited array

A={[1,2,3,4,5],[1,3],[1],[1,3,4,5,6,7,89,0],[1,3],[1,3,4,5],[4,6]};
N = cellfun(@length,A) ; 
A(N==2) = [];

I want to have index of length 2

result=[2,5,7]

I use this code but have error

index = cellfun(@(m) find(m(N==2)),A,'uni',0);

Best Answer

find(N==2)

Related Solutions

MATLAB: Omitting array

If your matrix is called m, you can reference the odd rows like this:

m(1:2:end,:)

If it is always going to be a vector (an nx1 or 1xn matrix), then you can use linear indexing and this reference:

m(1:2:end)

If you want to overwrite your vector, just reassign it to the original variable name:

m = m(1:2:end)

MATLAB: Omit rows from matrix

>> A=[1,2;1,3;1,4;1,5;2,4;2,3;2,5];
   B=[2,4];
   idx=ismember(A,B,'rows');
   A = A(~idx,:)
 
A =
     1     2
     1     3
     1     4
     1     5
     2     3
     2     5
>>

Best Answer

Related Solutions

MATLAB: Omitting array

MATLAB: Omit rows from matrix

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