Octave/Matlab: Adding new elements to a vector
element, matlab, octave, vector
Solution
`x(end+1) = newElem` is a bit more robust.
`x = [x newElem]` will only work if `x` is a row-vector, if it is a column vector `x = [x; newElem]` should be used. `x(end+1) = newElem`, however, works for both row- and column-vectors.
In general though, growing vectors should be avoided. If you do this a lot, it might bring your code down to a crawl. Think about it: growing an array involves allocating new space, copying everything over, adding the new element, and cleaning up the old mess...Quite a waste of time if you knew the correct size beforehand :)
Problem
Having a vector `x` and I have to add an element (`newElem`) . Is there any difference between - ``` x(end+1) = newElem; ``` and ``` x = [x newElem]; ``` ?