concatination of matalb structures with diffrent set of fields in recursive call

I have a recursive function that i use to explore diffrent parallel problems, then each probelm may have diffrents parallel solutions, then I have to store the solutions in the same structure. This is my code witch works well if the the pblems Have juste one solution but when it parallel I get the folowing error "Number of fields in structure arrays being concatenated do not match. Concatenation of structure arrays requires that these arrays have the same set of fields.

"

here is my function code

function Result =RecursiveProgramTest(Sol,Concept_matrix,FPrime,Concept,Level,EndFPrime,EndFPrimeLast,s)
[Levelbis,NumberofParallelLevel,EndFPrime,IndexToDelete]    = ServiceSemanticMatchingFunction(Sol.UR.Plus.Ancestors.Name,Sol.UR.Plus.Concept,Concept_matrix,FPrime,length(FPrime),Concept,EndFPrime,s,Level);
if isempty(Levelbis) || EndFPrime==EndFPrimeLast
    Result.AS=[];
    Result.UR=[];
    
else
    if length(Levelbis)==1
        
        FPrime(IndexToDelete)=[];
        
        AbstactCompositionPlan.AS=Levelbis;
        Variable.Concept.Name   = Levelbis.Outputs.Name;
        Variable.Ancestors.Name =Levelbis.Outputs.Ancestors.Name;
        AbstactCompositionPlan.UR.Plus = Variable;
        
        Result= cat(1,AbstactCompositionPlan,RecursiveProgramTest(AbstactCompositionPlan,Concept_matrix,FPrime,Concept,Level,EndFPrime,EndFPrimeLast,s));
        EndFPrime= EndFPrime+1;
    else
        FPrime(IndexToDelete)=[];
        
        for i=1:length(Levelbis)
            x=i
            EndFPrimeParellel{i}=EndFPrime;
            
            AbstactCompositionPlan(i).AS=Levelbis(i);
            Variable(i).Concept.Name   =Levelbis(i).Outputs.Name;
            Variable(i).Ancestors.Name =Levelbis(i).Outputs.Ancestors.Name;
            AbstactCompositionPlan(i).UR.Plus = Variable(i);
            FPrimeParalell{i}=FPrime;
            
            Result.AS{i}= cat(1,AbstactCompositionPlan(i),RecursiveProgramTest(AbstactCompositionPlan(i),Concept_matrix,FPrimeParalell{i},Concept,Level,EndFPrime,EndFPrimeLast,s));
            EndFPrimeParellel{i}= EndFPrimeParellel{i}+1; % le metre en parl
        end
        
        
    end
end

Here some figures to show he result, wel the first 6 problem have not parallel solution so there is no problem, but the 7 probelm have 3 parallel solutios, so the cancatination in the recursive cal under the loop get me the error.

If anywone can help me I will be very gratful

Answer 1

[Bruno Luong]

Try to include the following function and replace in your code

cat(1, ...)

by

catstruct(1, ...)

function S = catstruct(dim, varargin)
% S = catstruct(dim, S1, S2, ...) or ...
% S = catstruct(dim, {S1, S2, ...})
% concatenate structures arrays but can tolerate non-matched fieldnames
% Structures without a specific fielname with be populated with [] in the
%   missing field.
%
% See also: mergestruct
if length(varargin)==1 && iscell(varargin)
    c = varargin{1};
else
    c = varargin;
end
iss = cellfun(@isstruct, c);
c(~iss) = []; %{struct()};
template = emptytemplate(c);
S = cellfun(@(s) mergestruct(s, template), c, 'unif', 0);
S = cat(dim, S{:});
end % catstruct
%%
function s = emptytemplate(c)
f = cellfun(@fieldnames, c, 'unif', 0);
f = unique(cat(1, f{:}));
sarg = f.';
sarg(2,:) = {[]};
s = struct(sarg{:});
end

function S = mergestruct(S1, S2)
% S = mergestruct(S1, S2)
% Merge two structures arrays to a single one
% Note: for fieldnames conflict values in S1 are selected
%
% See also: catstruct, mmergstruct

sz = size(S1);
S1 = S1(:);
S2 = S2(:);
f1 = fieldnames(S1);
f2 = fieldnames(S2);
v1 = struct2cell(S1);
v2 = struct2cell(S2);
[f2, ikeep] = setdiff(f2,f1,'stable');
v2 = v2(ikeep,:);
v1arg = num2cell(v1,2);
v2arg = num2cell(v2,2);
sarg = [f1 v1arg; ...
        f2 v2arg].';
S = struct(sarg{:});
S = reshape(S,sz);

end % mergestruct

[asma]

thank you, but there is three functions here I will juste use the catstruct function or includes all of them in the same field?

[Bruno Luong]

You need all three, catstruct the other two.

[asma]

So the name of my man function would be catstruct which incllueds the otheres functions??

[Bruno Luong]

Do not change the name of your function, simply add the code with three functions I gave above in the tail of your mfile (I suppose RecursiveProgramTest.m), you might add anther "end" to close your function RecursiveProgramTest

[asma]

Ok, thank you

[asma]

@Bruno Luong it works thank you so much

[Bruno Luong]

You are welcome