Here is a simple example GUI. Note that the same principle applies in GUIDE.
function [] = slider_plot()
% Plot different plots according to slider location.
S.fh = figure('units','pixels',...
'position',[300 300 300 300],...
'menubar','none',...
'name','slider_plot',...
'numbertitle','off',...
'resize','off');
S.x = 0:.01:1; % For plotting.
S.ax = axes('unit','pix',...
'position',[20 80 260 210]);
plot(S.x,S.x,'r');
S.sl = uicontrol('style','slide',...
'unit','pix',...
'position',[20 10 260 30],...
'min',1,'max',3,'val',1,...
'sliderstep',[1/2 1/2],...
'callback',{@sl_call,S});
function [] = sl_call(varargin)
% Callback for the slider.
[h,S] = varargin{[1,3]}; % calling handle and data structure.
cla
switch round(get(h,'value'))
case 1
cla
plot(S.ax,S.x,S.x.^1,'r')
case 2
cla
plot(S.ax,S.x,S.x.^2,'b')
case 3
cla
plot(S.ax,S.x,S.x.^3,'k')
otherwise
disp('cannot plot')
end
