MATLAB: How can I get the max of the values between NaN’s in an array

arraynan

I have an array like this one:
T = [NaN NaN; ...
1 3; 
2 4; 
5 6; 
8 7; 
NaN NaN; 
NaN NaN; 
4 5; 
6 7;  
NaN NaN; 
NaN NaN; 
1 2; 
2 4; 
5 6; 
NaN NaN];
Now I'd like to add the columns of the values between the Nan's and get the max values of the sums. So the outcome in this case would be:
max = [15; 13; 11]
I tried this:
NaNloc=isnan(T);
ind=find(NaNloc(:,1)); 
for i=1:(length(ind)-1) 
      if ind(i+1)-ind(i) >1
          patloc=[ind(i) ind((i+1))];
          patarray=patloc(1):1:patloc(2);
          for j=patarray(1):patarray(length(patarray))
              a=T(j,:);
              f=a(1)+a(2);
              fsave(j-patloc(1)+1,:)=f; 
          end
    max(fsave)
      end  
  end
but I get the outcome: 15 15 11

Best Answer

T = [NaN NaN; 1 3; 2 4; 5 6; 8 7; NaN NaN; NaN NaN; 4 5; 6 7; NaN NaN; NaN NaN; 1 2; 2 4; 5 6; NaN NaN;4 5];
h=[1;isnan(T(:,1)) ;1]';
out=arrayfun(@(x,y) max(sum(T(x:y,:),2)),strfind(h,[1 0]),strfind(h,[0 1])-1)
Related Question