MATLAB: How to combine series of consecutive numbers in Matlab

MATLAB

I have following data:
s{1} = 1:10;
s{2} = 19:27;
s{3} = 29:41;
s{4} = 59:67;
s{5} = 71:89;
s{6} = 91:110;
s{7} = 119:210;
s{8} = 214:290;
and I want to combine sets with difference less than 4
   diff = s{2}(1)-s{1}(end)
  if diff <4
  combine s{1}and s{2}
My out should be:
s{1} = 1:10;
s{2} = 19:41;
s{3} = 59:67;
s{4} = 71:110;
s{5} = 119:210;
s{6} = 214:290;

Best Answer

Bs = cellfun(@(v)v(1),s);
Es = cellfun(@(v)v(end),s);
D = Bs(2:end)-Es(1:end-1);
X = cumsum([1,D>=4]);
Bz = accumarray(X(:),Bs(:),[],@min);
Ez = accumarray(X(:),Es(:),[],@max);
Z = arrayfun(@(b,e)b:e,Bz,Ez,'uni',0);
Giving:
>> Z{:}
ans =
    1    2    3    4    5    6    7    8    9   10
ans =
   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41
ans =
   59   60   61   62   63   64   65   66   67
ans =
    71    72    73    74   ...  106   107   108   109   110
ans =
   119   120   121   122   ...  205   206   207   208   209   210
ans =
   214   215   216   217   ...   286   287   288   289   290
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