MATLAB: Subsetting equal data from a array to different arrays

equal datasubsetunique

Hello, I'm currently working on a overtopping script and now I need to split up my data. I want to go from this data (selecting the rows with the same values in the first two columns):
    0.0010    0.0310       NaN    0.5873
    0.0010    0.0590       NaN    0.8092
    0.0050    0.0310    3.0958    0.7419
    0.0050    0.0310    3.8532    0.7570
    0.0050    0.0310    6.4800    0.6803
    0.0050    0.0310   24.3356    0.6091
    0.0050    0.0310   37.2512    0.6321
    0.0050    0.0310   37.2633    0.5996
    0.0050    0.0310   75.1829    0.6125
    0.0050    0.0310   93.9991    0.6680
    0.0050    0.0590    2.2801    0.8573
    0.0050    0.0590    2.7944    0.8585
    0.0050    0.0600    2.7647    0.8750
    0.0050    0.0600   18.1790    0.8311
    0.0050    0.0600   27.5549    0.8176
    0.0050    0.0600   27.6349    0.8064
To this:
Subset1
    0.0010       0.0310         NaN      0.5873
Subset2
    0.0010      0.0590         NaN      0.8092
Subset3
    0.0050      0.0310      3.0958      0.7419
    0.0050      0.0310      3.8532      0.7570
    0.0050      0.0310      6.4800      0.6803
    0.0050      0.0310     24.3356      0.6091
    0.0050      0.0310     37.2512      0.6321
    0.0050      0.0310     37.2633      0.5996
    0.0050      0.0310     75.1829      0.6125
etc.

Best Answer

a = [    0.0010    0.0310       NaN    0.5873
    0.0010    0.0590       NaN    0.8092
    0.0050    0.0310    3.0958    0.7419
    0.0050    0.0310    3.8532    0.7570
    0.0050    0.0310    6.4800    0.6803
    0.0050    0.0310   24.3356    0.6091
    0.0050    0.0310   37.2512    0.6321
    0.0050    0.0310   37.2633    0.5996
    0.0050    0.0310   75.1829    0.6125
    0.0050    0.0310   93.9991    0.6680
    0.0050    0.0590    2.2801    0.8573
    0.0050    0.0590    2.7944    0.8585
    0.0050    0.0600    2.7647    0.8750
    0.0050    0.0600   18.1790    0.8311
    0.0050    0.0600   27.5549    0.8176
    0.0050    0.0600   27.6349    0.8064];
[~,~,c] = unique(a(:,1:2),'rows');
out = accumarray(c,(1:numel(c))',[],@(x){a(x,:)});
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