How to convert a string to int

hi

in my script i got this

 function [] = N_call(src,evendata)
 % Callback for secondary GUI editbox.
 S = get(0,'userdata');
 %set(S.ed2,'string',get(gcbo,'string'))  % Set gui_passdata editbox string.
 str13=get(src,'string');
 if (isempty(str2num(str13))) 
   set(src,'String','0')
 else
   n=str13;
   save n
   set(S.ed13,'string',get(gcbo,'string'))  % Set gui_passdata editbox string.
 end

and it saves to workspace as a string i guess, it shows value='20' max-nothing min-nothing

and i've another function that need to use the value but like an int. for an example if i define a=2 in script it shows value=2 max=2 and min=2, and this is waht i want but i don't know how

i've tried to use str2num and double with no results

[Sean de Wolski]

str2double(get(src,'string')) doesn't work?

[Nu9]

i've tried that but still the same,it saves as a char/string

Answer 1

[Laura Proctor]

The command

save n

will save all the variables in your function workspace to a file named n.mat. Is this what you intend?

If you do wish to save str13 in the variable n as an integer, this command will work:

n = str2num(['uint8(',str13,')']);

[Nu9]

i want to save the value "n" in workspace and use in other function.

The main problem is the data type and tha code line didn't work :/. SAme with the other tips

[Laura Proctor]

Inside your function, just after n = str13, put in the line

who n

and see let us know what is returned.

[Nu9]

it returned the same as before :/

[Walter Roberson]

n = str2double(str13);

Answer 2

[York Dau]

k

Answer 3

[York Dau]

5