t = linspace(0,10,50);
plot(t,sin(t))

h = get(gca,'children');
set(h,'Marker','o')

set(get(gca,'children'),'Marker','o')


>> get(gca,'xlim')
ans =
     0     10
>> get(gca,'ylim')
ans =
    -1     1

>> get(gca,'xtick')
ans =
      0    2     4  6 8 10

>> get(gca,'linewidth')
ans =
    0.5

>> get(gca)
>> get(h)

h = plot(t,sin(t));
set(h,'Marker','o')

axes('Position',[.1 .5 .8 .08],'TickDir','out',...
     'YDir','reverse','xax','top')

>> set(gca,'XAxisLocation')

function oops(N)
% OOPS Delete the last object plotted on the axes.
%      Repeating "oops" erases farther back in time.
%      OOPS does not work for title and labels; to
%      erase these, use "title('')" or "xlabel('')"
if nargin = = 0 N = 1; end
h = get(gca,'children');
delete(h(1:N));

clf
plt(x,f(x))
hold on
plt(x,f(x/2))

oops

x = -1:.01:1;
f = inline('x.^2');
clf
plt(x,f(x),x,sqrt(f(x)))
xt = [-.5 -.5];
yt = [f(-.5) sqrt(f(-.5))];
text(xt,yt,{' |x|' ' x^2'})

oops(2)
text(xt,yt,{' x^2' ' |x|'})

figure
get(gcf,'position')
ans =
   291   445   560  420

>> get(gcf,'units')
ans =
pixels

>> set(gcf,'units')
[ inches | centimeters | normalized | points | pixels ]

>> set(gcf,'units','norm')
>> get(gcf,'units')
ans =
normalized

>> get(gcf,'position')
ans =
    0.2517    0.4933   0.4861 0.4667

set(gcf,'pos',[0 0 .5 .5])

figure('units','norm','pos',[.5 0 .5 .5])

gcf: get(0,'CurrentFigure')
gca: get(gcf,'CurrentAxes')
gco: get(gcf,'CurrentObject')

=====================================================================

h = uicontrol;
>> get(h,'style')
ans =
pushbutton

>> set(h,'style')
[ {pushbutton} | togglebutton | radiobutton | checkbox
 | edit | text | slider | frame | listbox | popupmenu ]


uicontrol('String','Do plot','CallBack','plot(humps)')

uicontrol('Callback','ezplot(''sin(x)'')', ...
  'Position',[508 351 51 26],'String','Sine');
uicontrol('Callback','ezplot(''cos(x)'')', ...
  'Position',[508 322 51 26],'String','Cos');
uicontrol('Callback','ezplot(''tan(x)'')', ...
  'Position',[508 293 51 26],'String','Tan');

function trigplt(action)
if nargin = = 0 % Create the GUI:
  uicontrol('Callback','trigplt Sine',...
            'Position',[508 351 51 26],'String','Sine');
  uicontrol('Callback','trigplt Cosine',...
            'Position',[508 322 51 26],'String','Cos');
  uicontrol('Callback','trigplt Tangent',...
            'Position',[508 293 51 26],'String','Tan');
else % Perform the action:
  x = linspace(0,2*pi);
  switch(action)
    case 'Sine'
      y = sin(x); titstr = 'y = sin(x)';
    case 'Cosine'
      y = cos(x); titstr = 'y = cos(x)';
    case 'Tangent'
      y = tan(x); titstr = 'y = tan(x)';
  end
  plot(x,y)
end


h = uicontrol('style','edit','String','Hello');

set(h,'string','Bye')

>> get(h,'string')
ans =
qwe

>> x = get(h,'string')
x=
10.3
>> x+1
ans =
    50    49    47    52
>> str2num(x) + 1
ans =
   11.3000

uicontrol('Pos',[110 280 60 19],'Style','text','String','Name:');
uicontrol('Pos',[175 280 246 19],'Style','edit');
uicontrol('Pos',[110 262 60 19],'Style','text',...
          'String','Address:');
uicontrol('Pos',[175 262 246 19],'Style','edit');
uicontrol('Pos',[110 243 60 19],'Style','text','String','Sex:');
uicontrol('Pos',[175 243 121 19],'Style','radiobutton',...
          'String','Male');
uicontrol('Pos',[301 243 121 19],'Style','radiobutton',...
          'String','Female');


uicontrol('Position',[99 231 332  77],'Style','frame');
uicontrol('Position',[110 280 60  19],'Style','text',...
          'String','Name:');
uicontrol('Position',[175 280 246 19],'Style','edit');
uicontrol('Position',[110 262 60  19],'Style','text',...
          'String','Address:');
uicontrol('Position',[175 262 246 19],'Style','edit');
uicontrol('Position',[110 243 60  19],'Style','text',...
          'String','Sex:');
uicontrol('Position',[175 243 121 19],'Style','radiobutton',...
          'String','Male');
uicontrol('Position',[301 243 121 19],'Style','radiobutton',...
          'String','Female');


h = uicontrol('style','slider');
set(h,'pos',[50 200 450 40])
set(h,'callback','disp(get(h,''value''))')

clf
hsl = uicontrol('Position',[200 260 200 20], ...
      'Style','slider','Value',0.5,...
      'CallBack',...
      'set(hed,''String'',num2str(get(hsl,''value''),2))');
hed = uicontrol('BackgroundColor',[1 1 1], ...
      'Position',[200 240 70 20], ...
'String','0.5','Style','edit',...
'CallBack',...
'set(hsl,''Value'',str2num(get(hed,''String'')))');

set(h,'String',{'Red';'Green';'Blue'})
set(h,'String','Red|Green|Blue')
set(h,'String',[1;10;100])
set(h,'String',1:3)
set(h,'String',['Red ';'Green';'Blue '])

h = uicontrol('pos',[168 219 89 116], ...
   'Style','listbox', ...
   'String',{'Red';'Green';'Blue'});

set(h,'string',{'Red';'Green';'Blue';...
    'Pale Goldenrod';'Orange';'yellow'})

set(h,'style','popup',...
      'pos',[168 219 145 32])

function exradio(action)
if nargin = = 0
  clf
  uicontrol('Position',[200 321 90 25], ...
      'String','JJJ', ...
      'Style','radiobutton',...
      'CallBack','exradio(1)')
  uicontrol('Position',[200 296 90 25], ...
      'String','ABC-FM', ...
      'Style','radiobutton',...
      'CallBack','exradio(1)')
  uicontrol('Position',[200 271 90 25], ...
      'String','SAFM', ...
      'Style','radiobutton',...
      'CallBack','exradio(1)')
  uicontrol('Position',[200 246 90 25], ...
      'String','5AD', ...
      'Style','radiobutton',...
      'CallBack','exradio(1)')
else
  h = findobj('style','radiobutton');
  ind = find(h~ = gco);
  set(h(ind),'value',0)
end

clf
set(gcf,'doublebuffer','on')
h = plot(0,0,'.');
for i = 1:1000
  t = linspace(0,2*pi,i);
  set(h,'xdata',t,'ydata',sin(370*t))
  drawnow
end