Making one structure out of two structures

Let's say I have two structures.

D = [strtrim(C{1}),num2cell(C{2})].';                                           
F = struct(D{:});  

% other code that creates C1

D1 = [strtrim(C1{1}),num2cell(C1{2})].';                                       \
E = struct(D1{:});

I now want to create a larger structure out of F and E that has the same dimensions.

So , for dummy variables, let's say F looks like (but is not limited to):

A: apple

B: ball

and E looks like:

C: cat

D: dog

How do I combine these two into:

A: apple

B: ball

C: cat

D: dog

Thanks!

[Stephen23]

Note that you could also use cell2struct to create those structures, which avoids having to create the intermediate cell arrays.

Answer 1

[Stephen23]

A general solution for two identically-sized structures, with any number of fields:

>> F.A = 'apple';
>> F.B = 'ball';
>> E.C = 'cat';
>> E.D = 'dog';
>> Z = cell2struct([struct2cell(E);struct2cell(F)], [fieldnames(E);fieldnames(F)], 1)
Z =
    C = cat
    D = dog
    A = apple
    B = ball

[g]

Many thanks!

Answer 2

[Walter Roberson]

Either loop setting field by field or else use struct2cell on both and combine into one cell and cell2struct back into struct.