delete value from double class by using logical class

Let's say:

A : 2x7 double class
A=[ 1 2 3 4 5 6 7; 8 9 1 2 3 4 5] ;
A=[ 1 2 3 4 5 6 7
    8 9 1 2 3 4 5 ]

B: 2x7 logical class:
B=boolean( [1 0 0 0 0 0 1;1 0 1 1 1 1 1] );
B={ 1 0 0 0 0 0 1
    1 0 1 1 1 1 1 }

How to find the matrix C (double class)as follow result from A & B:

   C=[ 1  7
       8 1  2 3 4 5    ]

C=[1 7; 8 1 2 3 4 5] ????

[Rik]

You can't. Arrays in Matlab are always rectangular.

[ha ha]

thank @Rik Wisselink

Answer 1

[Jan]

As said already: Matrices must be rectangular. But you can use a cell array:

A = [ 1 2 3 4 5 6 7; ...
      8 9 1 2 3 4 5];
B = logical([ 1 0 0 0 0 0 1; ...
              1 0 1 1 1 1 1]);

n = size(A, 1);
C = cell(n, 1);
for k = 1:n
  C{k} = A(k, B(k, :));
end

Then:

   C = {[1 7]; ...
        [8 1 2 3 4 5]}

Answer 2

[Birdman]

Addition to Rik's comment, you should use cell array for this type of problems:

idx=A&~B;
C=mat2cell(A,ones(1,size(A,1)),ones(1,size(A,2)));
C(idx)={[]}