在GUI matlab中运行函数(Running Functions in GUI matlab)

 继续我对抗GUI的斗争，我遇到了另一个路障。 
 
 我成功地创建了一个按钮，以字符串的形式打开一个文件，并将其放置在我的GUI中的文本框中。 
 
 [filename, pathname] = ...
     uigetfile({'*.m';'*.mdl';'*.mat';'*.*'},'File Selector');

set(handles.Textbox1, 'string', fullfile(pathname,filename));
 
 但现在我似乎无法在获取的文件上使用函数。 我试过了 
 
  str = get(handles.Textbox1,'string');
Histogram(str); %Histogram is a function that I created.
 
 但即时获得以下错误 
 
 
 
 ??? 错误使用==>直方图输入参数太多。 
 
 
 错误==> VarunGUI> pushbutton2_Callback at 94直方图（str）; 
 
 
 错误在==> gui_mainfcn在96 feval（varargin {：}）; 
 
 
 错误在==> VarunGUI在42 gui_mainfcn（gui_State，varargin {：}）; 
 
 
 错误在==> @（hObject，eventdata）VarunGUI（'pushbutton2_Callback'，hObject，eventdata，guidata（hObject）） 
 
 
 ??? 评估uicontrol回调时出错 
 
 
 我的代码是用来调用函数的，还是函数本身？ 我无法理解如何修改函数以在被调用的图像上工作，所以这可能是我的问题，函数以下面的代码开始。 
 
function Histogram
clear;
clc;
fid = fopen('');
myimage = fread(fid, [512, 683], '*uint8');
fclose(fid);
 
 是否需要在''中放置某个变量以使GUI以我希望的方式工作？ 问题有点长，但请告诉我，如果您需要查看任何其他信息以帮助我，那么任何指导或技巧都会很棒。 谢谢！ 

Continuing my struggle against GUI's, I have run into another road block.
 
Ive successfully created a button that opens a file as a string, and places it in a text box in my GUI like so. 
 
 [filename, pathname] = ...
     uigetfile({'*.m';'*.mdl';'*.mat';'*.*'},'File Selector');

set(handles.Textbox1, 'string', fullfile(pathname,filename));
 
But now I cannot seem to use a function on the acquired file. Ive tried doing 
 
  str = get(handles.Textbox1,'string');
Histogram(str); %Histogram is a function that I created.
 
But im getting the following errors
 
 
 
??? Error using ==> Histogram Too many input arguments.
 
 
Error in ==> VarunGUI>pushbutton2_Callback at 94 Histogram(str);
 
 
Error in ==> gui_mainfcn at 96 feval(varargin{:});
 
 
Error in ==> VarunGUI at 42 gui_mainfcn(gui_State, varargin{:});
 
 
Error in ==> @(hObject,eventdata)VarunGUI('pushbutton2_Callback',hObject,eventdata,guidata(hObject))
 
 
??? Error while evaluating uicontrol Callback
 
 
Is my code for calling the function to blame, or is the function itself? I'm having trouble understanding how to alter the function to work on the called image, so that may be my problem, the function begins with the following code. 
 
function Histogram
clear;
clc;
fid = fopen('');
myimage = fread(fid, [512, 683], '*uint8');
fclose(fid);
 
Is there a certain variable I need to place in the '' to make the GUI act in the manner to which I would like it? Question ran a little long, but please tell me if there is anything else you need to see in order to assist me, any guidance or tips would be great. Thanks!

原文：https://stackoverflow.com/questions/17174611