Reverse workspace shift performed by dbup, while in debug mode
dbdown changes the current workspace context to the workspace of the called MATLAB® code file when a breakpoint is encountered. You must have issued the dbup function at least once before you issue this function. dbdown is the opposite of dbup.
Multiple dbdown functions change the workspace context to each successively executed MATLAB code file on the stack until the current workspace context is the current breakpoint. It is not necessary, however, to move back to the current breakpoint to continue execution or to step to the next line.