MATLAB: How to put each group of cells in the same row

cellcell arraysgroupmatrix

Hello,

Let we have a cell array A of size (1*5216), I want to put each 16 cell in the same row. So how can I do that ?

Best Answer

reshape(A, 16, [])'

reshapes your cell array in columns of 16 rows (since matlab is column major). Then transpose to have rows of 16 columns.

That's assuming you want to preserve the ordering, otherwise

reshape(A, [], 16)

which directly reshape in rows of 16 columns.

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MATLAB: Find array equal and put it in group

This is one of the basic functionalites of the unique function, just do something like this:

A = [1	0	0	0	0
    0	1	0	0	1
    0	0	1	0	0
    0	0	0	1	0
    0	1	0	0	1];
[C,ia,ic] = unique(A,'rows');
ic
ic =
     4
     3
     2
     1
     3

The ic vector is saying for which group each row belongs

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: Find array equal and put it in group

MATLAB: ButtonGroup

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