There is no goto in matlab. However, this does not say you cannot structure your code to use an {if, else, elseif, end} structural form for your code. Or use a {switch, case, end} form. Or call a function (or subfunction or nested function) to solve your problem. Or use a continue/break to structure your code. One can always solve these problems using one of the existing forms of flow control available.
The use of functions can improve your code in other ways, often by making it more modular, and therefore easier to debug and write.