Store data from a a loop

i am trying to loop through three variables and store the data from each loop:

    for rating=1:3
   k=rating+1;  %start rating
      l=10;     %end rating
   AAADowngrade=zeros(100,l-k+1,rating);
     for i=1:100
         for j=k:l
   AAADowngrade(i,j-k+1,rating) = sum(tHistorical(rating,j:l,i));
           end  
     end
    end

However, the code above only stores data from the final rating (rating =3). The first two tables just have zeros in them.

Answer 1

[Walter Roberson]

maxrating = 3;
AAADowngrade = cell(maxrating,1);
l=10;     %end rating
for rating = 1 : maxrating
   k = rating+1;  %start rating
   thisAAADowngrade = zeros(100,l-k+1);
   for i=1:100
     for j=k:l
       thisAAADowngrade(i,j-k+1) = sum(tHistorical(rating,j:l,i));
     end  
   end
   AAADowngrade{rating} = thisAAADowngrade;
end

You need a cell array because the arrays are not all the same size.

[RP]

Thanks. I tried pasting in this code and I got the following error:

Unable to perform assignment because brace indexing is not supported for variables of this type.

Error in AST (line 41)

AAADowngrade{rating} = thisAAADowngrade;

[Stephen23]

You need to include this line before the loop:

AAADowngrade = cell(maxrating);

[Walter Roberson]

Corrected.

[RP]

I tried adding this line (not show if done correctly). The code runs but it only gives me results for the max rating (3). The other tables are blank.

maxrating = 3;

AAADowngrade = cell(maxrating);

l=10; %end rating

for rating = 1 : maxrating

k = rating+1; %start rating

AAADowngrade = zeros(100,l-k+1);

for i=1:100

for j=k:l

thisAAADowngrade(i,j-k+1) = sum(tHistorical(rating,j:l,i));

end

end

AAADowngrade = cell(maxrating);

AAADowngrade{rating} = thisAAADowngrade;

end

[Walter Roberson]

no you need to use the version that I corrected

[RP]

Thanks - I have accepted your repsonse.