I am trying to compare two scalar values, however, I reach “matrix dimensions must agree” error. The code is:

```
cvx_solver MOSEK
variable A(n,n,p) binary;
subject to
for f=1:p
sum(A(1,:,f))==sum(A(:,1,f))+1;
end
```

The error:

```
Error using cvxprob/newcnstr (line 87)
Matrix dimensions must agree.
Error in >= (line 21)
b = newcnstr( evalin( 'caller', 'cvx_problem', '[]' ), x, y, '>=' );
Error in SolverForNew3R (line 19)
sum(A(1,:,f))>=sum(A(:,1,f))+1;
```

Does anyone have any idea?