output is one element tuple vector. I can’t access the elements of that output.

so, how to convert output to a 3x1 matrix.

Thank You

```
only(s)
```

should give you a tuple, why do you need to convert it to a matrix?

```
[(1,2,3)...;;]'
#or
hcat([(1,2,3)...])
```

1 Like

`reduce(vcat,only(s))`

or `vcat(only(s)...)`

will convert it to a 3-vector, which should be compatible with a 3x1 matrix almost everywhere unless you have typed some functions too strictly. You can apply an additional `reshape(thevector,3,1)`

if you insist on it being a matrix rather than vector.