MATLAB: How to sum all positive values in each row in matrix

loopssum

Hello.
I have a 8760×10 matrix where i want to sum all positive numbers in each row seperatly to yield a new 8760×1 vector with the sum of all positive values from each row. normally if i would do it on a single vector then i would just use: 
sum(d(d>0))
but i dont know how to do it within a loop and for many rows
Here is what i got so far: 
for i = 1:n
    
    central(i)      = sum(prod((i),(1:6)))+sum(prod((i),(12:17)))+sum(prod((i),(20:25)))+sum(prod((i),(93:100)));
    decentral(i)    = sum(prod((i),(7:11)))+sum(prod((i),(18:19)))+sum(prod((i),(26:92)));
    solar(i)        = sum(renew((i),(1:12)));
    hydro(i)        = renew(i,13);
    wind(i)         = sum(renew((i),(14:78)));
    netimport(i)    = sum(inter((i),(1:7)))+sum(inter((i),(9:10)));
    
    if netimport(i) < 0
        netimport(i) = 0;
        
    elseif netimport(i) > 0
  
        totalimport(i) = sum(inter(i)(inter(i)>0)); % this is the line i dont know how to do. it should be able to sum all positive numbers in all 8760 seperatly.
        
        % another idea that i have had was:
        
        totalimport(i) = sum(inter((i),(1:10))(inter((i),(1:10))>0));
Anybody that can help? 🙂

Best Answer

sum(max(A,0),2)
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