Subscripted assignment dimension mismatch when cal back the function

dear all this is my cod

function [Rl] = basisfunction1(j,N)

    L=1;
    x = sym('x', [1 3], 'real');
       for i=j-1
        Rl(:,:,j)=[cos(x(3*i-2))*cos(x(3*i-1))*cos(x(3*i))-sin(x(3*i-2))*sin(x(3*i)) -cos(x(3*i-2))*cos(x(3*i-1))*sin(x(3*i))-sin(x(3*i-2))*cos(x(3*i)) cos(x(3*i-2))*sin(x(3*i-1));sin(x(3*i-2))*cos(x(3*i-1))*cos(x(3*i))+cos(x(3*i-2))*sin(x(3*i)) -sin(x(3*i-2))*cos(x(3*i-1))*sin(x(3*i))+cos(x(3*i-2))*cos(x(3*i)) sin(x(3*i-2))*sin(x(3*i-1));-sin(x(3*i-1))*cos(x(3*i)) sin(x(3*i-1))*sin(x(3*i)) cos(x(3*i-1))];
       end
    end

and i save it in basisfunction1.m and i run my main cod in other m file that is like :

N=1;
for j=2:N+1
Rl(:,:,j) = basisfunction1(j,N);
end

but i get this error : Subscripted assignment dimension mismatch

i realy apreciated if some one can help

Answer 1

[Image Analyst]

basisfunction1 returns a 3-D array R1. Now in

Rl(:,:,j) = basisfunction1(j,N);

you're trying to stick a 3-D array into one plane of the R1 array. You can only put a 2-D image into the j'th plane, not a 3-D image.