Combining structs into a larger struct?

Okay, I have 4 structs.

    CriticalCutAuto %(1x1 with 4 fields called A;B;C;D)
    CriticalCutHuman %(1x1 with 4 fields called A;B;C;D) 
    CriticalFolAuto %(1x13 with 4 fields called A;B;C;D)
    CricticalFolHuman %(1x9 with 4 fields called A;B;C;D)

There are 2 categories (Cut Situations and Follow Situations) with 2 subparts of data (Human and Auto). In my current structs, say in CritFolAuto, you can scroll over the box in field A row 1, and click to see the data, which is a 1x100 double.

What I want to be able to do is click on the name AllSituations in the workspace, and a 1x2 struct appears that says 'Follow' and 'Cut'. I then want to be able to CLICK on either of those two files to see another 1x2 struct with 'Human' and 'Auto'. When I CLICK on one of those two, I would like to see the original structs for CriticalCutHuman and the rest in their respective spots, so when I go into that data I can see the four fields A;B;C;D and the data that lies inside of them.

I thought I could call each struct with writing the name and '= []' to call it but I think that is wrong:

function [ AllSituations] = CritSituations( AutomatedData, HumanData )

CritSituations = [];

CriticalCutAuto= [] ;
CriticalCutHuman= [] ;
CriticalFolAuto= [] ;
CriticalFolHuman= [] ;

AllSituations(1).Follow = CriticalFolHuman;
AllSituations(1).Follow = CriticalFolAuto;
AllSituations(2).Cut = CriticalCutHuman;
AllSituations(2).Cut = CriticalCutAuto;

AllSituations = ans
%Critical_Situations = struct('Following Situations', {CriticalFolAuto, CriticalFolHuman}, 'Cut Situations', {CriticalCutAuto, CriticalCutHuman});
end

I also tried the silenced line but that did not work at all.

[MIRANDA WHAH]

I should note the size of the different structs varies. I have never made a structure with substructs so I am not sure if this is okay, but the sizes are 1x1,1x1,1x9,1x13 and they all have 4 fields of data.

[Jan]

The question is still not clear. What does "click into AllSituations" mean? Does your problem concern the representation of the data as an arrays or a GUI? It does not matter for the solution, that all variables start with "Critical", so the code and the question could be much leaner.

You do not explain, how you call your function and what is provided as "AutomatedData, HumanData". But these variables do not appear in the code. Using "ans" is a vary strange idea and the commented code line uses fieldnames, which contain a space and this should give you a clear error message.

AllSituations(1).Follow = CriticalFolHuman; 
AllSituations(1).Follow = CriticalFolAuto;

This overwrites the variables AllSituations(1).Follow directly after the creation - but why? I cannot guess the prupose.

"I have CriticalCutAuto CriticalCutHuman ..." does not explain anything. Please post some Matlab code, which creates the variables with dummy data. Are they cells, numerical arrays or nested structs? What do you expect as output? What is the point of "clicking" on what?

Please edit the question and insert useful details.

[MIRANDA WHAH]

I have edited my post to try to be as helpful as possible, but I did not think I needed to provide background information for everything. AutomatedData and HumanData are where I pulled my original data from for CriticalCutAuto, CriticalCutHuman, CriticalFolAuto, CricticalFolHuman. Note that inside of these situations is 4 fields of data, all filled with doubles. I am new to MATLAB and I will ask you to please be patient with me; I am asking how to do this because I do not understand structs very well. I understand things are not labeled very well, but I have a lot of other codes I am using as well so I cannot lean down the variables. Thank you for the suggestion though.

[Jan]

Of course we will be patient and questions about Matlab are welcome in this forum.

The question contains this sentence:

 you can scroll over the box in field A row 1, and click to see
 the data

Are you talking about structs or a GUI? Where do you scroll and click? You mean the work space browser? Ah, an important detail.

Nevertheless, I still do not understand, what you are looking for and the purpose of the posted code.

Structs are a kind of cell arrays, which are not accessed by indices, but by fieldnames. I think understanding, how structs work, is essential for you.

[Stephen23]

"Structs are kind of cell arrays"

I think it would be more useful to explain that both cell arrays and structures are different types of Containers (as structures are not really a kind of cell array).

[Jan]

@Stephen: You are right, this was a lazy formulation. In the MEX level structs and cells are very similar and the struct2cell conversion is really fast in consequence. But to see both as containers is more useful. I only wanted to encourage Miranda to get familiar with structs.

Answer 1

[Hadeel Nourahmed]

% Function to merge structures

function mergedStruct = mergeStructures(struct1, struct2)

% Merge the fields of the two structures

fields1 = fieldnames(struct1);

fields2 = fieldnames(struct2);

for j = 1:length(fields2)

if isfield(struct1, fields2{j})

% Field name already exists in struct1, rename it in struct2

field2new = [fields2{j} '_folder2']; % Or any unique identifier

struct2.(field2new) = struct2.(fields2{j});

struct2 = rmfield(struct2, fields2{j});

end

end

% Merge the structures

mergedStruct = struct1;

mergedStruct = cat(1, mergedStruct, struct2);

end