MATLAB interactive function caller

A very simple implementation after Mathematica's function Manipulate, this function creates a slider that calls a function whenever its value is updated. Great for interactive plotting.

manipulate(@(ARGS)FUNC(ARGS),{LABEL,ARG_MIN,ARG_MAX,[DEFAULT]}...) calls the function func(ARGS) and allows the user to control the values of the arguments via sliders. If DEFAULT is not set, the value is initially set to ARG_MIN.

manipulate expects one cell input per argument. All arguments must be scalars. Cells can also be of the form {LABEL,VALUES,[DEFAULT]} where VALUES is a 1D array containing allowed values of the argument.

H = manipulate(...) returns the the slider handles.

manipulate(...,'UpdateMode',MODE) allows the user to set the frequency with which the function is called. 'Low' Refresh only when slider is released (after drag) or clicked, or when edit field is altered. 'High' Also refresh continuously as slider is dragged. [Default] 'Manual' Refresh only when user presses button.

manipulate(...,'SliderStep',[SMALL BIG]) allows the user to set the step size of incremental slider increases and decreases. See UICONTROL for details.

  x = 1:.001:10;
  gca, L = plot(1,1,1,1);
  myfunc = @(i,f,theta)set(L(i),'XData',x,'YData',sin(10*x)+sin(f*x+theta));
  h=manipulate(@(f,theta)myfunc(1,f,theta),{'frequency1',10,20},{'phase1',0,2*pi});
  manipulate(h,@(f,theta)myfunc(2,f,theta),{'frequency2',10,20},{'phase2',0,2*pi})

Plots the interference of two sine waves and allows the user to manipulate the frequency and phase offset of the second wave. Then does the same again, adding the slider controls to the existing slider figure.

 x = linspace(-10,10,1e4);
 fig = figure('Visible','off');
 ax = [subplot(2,1,1),subplot(2,1,2)];
 f1 = @(u,s) plot(ax(1),x,exp(-1/2*((x-u)/s).^2)/sqrt(2*pi)/s,'r');
 f2 = @(u,s) title(ax(1),sprintf('N(%.2f,%.2f)',u,s^2));
 f3 = @(u,s) plot(ax(2),x,erf((x-u)/s/sqrt(2))/2+1/2,'r');
 myfunc = @(u,s) {f1(u,s),f2(u,s),f3(u,s)};
 manipulate(fig,myfunc,{'Mean',-5,5,0},{'Standard Deviation',.01,5,1})
 linkaxes(ax,'x'), set(ax,'NextPlot','replacechildren')
 movegui(fig,'onscreen')
 set(fig,'Visible','on')

Plots the normal distribution and its cumuliative distribution on separate subplots and allows the user to manipulate the mean and standard deviation. The mean is initially set to 0 and the standard deviation to 1. The slider controls appear in the same figure as the subplots.

Created by: Robert Perrotta