Bonjour,

Comme évoqué dans l'intitulé de cette discussion, j'ai du mal à comprendre le fonctionnement du GUI et à affecter une variable qui pourrait changer d'état en fonction de la position du slider.

J'ai une fonction affine de base type ax+b à laquelle j'effectue une régression linéaire, il y a donc plusieurs variables (a,b,N,lambda) auxquels j'aimerais affecté respectivement un slider, voici le code que j'utilise :

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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function varargout = interface(varargin)
% INTERFACE MATLAB code for interface.fig
%      INTERFACE, by itself, creates a new INTERFACE or raises the existing
%      singleton*.
%
%      H = INTERFACE returns the handle to a new INTERFACE or the handle to
%      the existing singleton*.
%
%      INTERFACE('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in INTERFACE.M with the given input arguments.
%
%      INTERFACE('Property','Value',...) creates a new INTERFACE or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before interface_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to interface_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES
 
% Edit the above text to modify the response to help interface
 
% Last Modified by GUIDE v2.5 17-Feb-2013 15:09:47
 
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @interface_OpeningFcn, ...
                   'gui_OutputFcn',  @interface_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end
 
if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
 
 
% --- Executes just before interface is made visible.
function interface_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to interface (see VARARGIN)
 
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
 
% Choose default command line output for interface
handles.output = hObject;
 
% Update handles structure
guidata(hObject, handles);
 
% UIWAIT makes interface wait for user response (see UIRESUME)
% uiwait(handles.figure1);
 
 
% --- Outputs from this function are returned to the command line.
function varargout = interface_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
 
% Get default command line output from handles structure
varargout{1} = handles.output;
 
 
 
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
x=0:1:10;
y=(2*x)+3;
z=rand(1,length(x));
z=z-mean(z);
 
y=y+(z*9);
U=[ones(length(x),1) x'];
B=inv(U'*U)*U'*y';
 
% Calcul de Rcarre
b0=B(1,1);
b1=B(2,1);
yest=(b1*x)+b0;
SSt=mean((y-mean(y)).^2);
SSe=mean((yest-mean(y)).^2);
Rcarre=SSe/SSt;
 
plot(x,y,'.')
hold on
plot(x,yest,'k')
Comment affecter ces 4 variables aux 4 sliders respectifs !?

Merci