how to correct thismistake

??? Error using ==> randperm Too many input arguments.

Error in ==> InverOver at 29 Position_City1 = randperm(length(Route), 1); %zvoleni nahodneho mesta

Error in ==> Program>Start_Callback at 168 [Result, Output] = eval([Funkce{metoda} '(Coordinates, handles)']);

Error in ==> gui_mainfcn at 96 feval(varargin{:});

Error in ==> Program at 17 gui_mainfcn(gui_State, varargin{:});

Error in ==> @(hObject,eventdata)Program('Start_Callback',hObject,eventdata,guidata(hObject))

Answer 1

[Thorsten]

Check

whos Route

n = length(Route)

BTW, if you need just one value, you can use

randi(n, 1)

Answer 2

[Guillaume]

Possibly, you're using an older version of matlab (< R2011b), before randperm acquired its second optional argument.