MATLAB: Group string based on charachter

problemstrings

Hi all If i have a string lets say a='1/23s' is there a way to take 1 and 23s seperately on some other variables so i can then extract only the numbers from them.

Best Answer

a='1/23s';
i = findstr(a,'/')
b = a(1:i-1)
c = a(i+1:end)

Related Solutions

MATLAB: How to check if string contains some special character

For #1 you could use isstrprop().

For #2, see startsWith(str, '_') and endsWith(str, '_')

For #3, you can use find():

indexes = strfind(str, '__');

For #4 you could do something like

if str(1) >= '0' && str(1) <= '9'
    % str starts with a numerical digit.
else
    % str does not start with a numerical digit.
end

MATLAB: ButtonGroup

The lines I changed are marked with a %%

   function [] = test(varargin)
   N.fh=figure('units','pixels',...
      'position',[500 250 300 400],...
      'color',[0.73 0.83 0.96],...
      'menubar','none',...
      'name','Title',...
      'numbertitle','off',...
      'resize','off');
   N.bg = uibuttongroup('unit','pix',...
      'position',[15 25 270 55],...
      'title','Back Ground Color',...
      'fontsize',9,...
      'backgroundcolor',[0.73 0.83 0.96],...
      'foregroundcolor',[0.08 0.17 0.55]);
   N.blue = uicontrol(N.bg,...
      'style','rad',...
      'unit','pix',...
      'position',[15 15 50 15],...
      'string','Blue',...
      'value',1,...
      'backgroundcolor',[0.73 0.83 0.96]);
   N.green = uicontrol(N.bg,...
      'style','rad',...
      'unit','pix',...
      'position',[110 15 50 15],...
      'string','Green',...
      'value',0,...
      'backgroundcolor',[0.73 0.83 0.96]);
   N.gray = uicontrol(N.bg,...
      'style','rad',...
      'unit','pix',...
      'position',[200 15 50 15],...
      'string','Gray',...
      'value',0,...
      'backgroundcolor',[0.73 0.83 0.96]);
   set([N.blue,N.green,N.gray],'callback',{@bg_call,N})  %%1
   function [] = bg_call(varargin)
   N = varargin{3};
   switch findobj(get(N.bg,'SelectedObject'))            %%2
      case N.blue
     set(N.fh,'color',[0.73 0.83 0.96]);                 %%3


      case N.green
     set(N.fh,'color',[0.6 1 0.6]);                      %%3
      case N.gray
     set(N.fh,'color',[0.8 0.8 0.8]);                    %%3
   end

For %%1, you forgot the word 'callback' and you were trying to assign the callback to the buttongroup itself, not the buttons. The alternative would be to use the selectionchangefcn of the buttongroup.
For %%2, you used the field data2, but never assigned a field data2. Also, you do not need to use FINDOBJ here, you could replace this with varargin{1}.
For %%3, you referenced N.figure, but there was no field with this name in N. You meant N.fh.

Best Answer

Related Solutions

MATLAB: How to check if string contains some special character

MATLAB: ButtonGroup

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