Assignment has more non-singleton rhs dimensions than non-singleton subscripts in loop matlab

i want to record all the result each iteration with this

iteration = 10;

for z=1:iteration

[vacc1(z), vsen1(z), vspe1(z), vpre1(z), vfone1(z), a(z)] = or2densemble (data, class);

end

but,

I have this error

Assignment has more non-singleton rhs dimensions than non-singleton subscripts

Error in main (line 23)

[vacc1(z), vsen1(z), vspe1(z), vpre1(z), vfone1(z), a(z)] = or2densemble (data, class);

how to fix it?