MATLAB: Comparing two structures and find the common

structures

I need to compare two strctures and find the common between them and then keep the common fields as the new structure.

Best Answer

common_fields = intersect( fieldnames(structure1), fieldnames(structure2));
for fn = common_fields
    this = fn{1};
    new_struct(1).(this) = structure1.(this);
    new_struct(2).(this) = structure2.(this);
end

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MATLAB: Structure contains multiple cells with different variables in them I would like to remove variables not present in all cells

%identify common fields
commonfields = fieldnames(data{1});
for cidx = 2:numel(data)
    commonfields = intersect(commonfields, fieldnames(data{cidx}));
end
%keep only the common fields in each structure
trimmeddata = cell(size(data));
for cidx = 1:numel(data)
    scell = struct2cell(data{cidx});    %convert to cell for easy extraction
    [tokeep, fieldindex] = ismember(fieldnames(data{cidx}), commonfields);  %which rows of cell array to keep and which order to use for commonfields  
    trimmeddata{cidx} = cell2struct(scell(tokeep, :), commonfields(fieldindex(tokeep)), 1);  %convert back into structure
end
merged = [trimmeddata{:}];

MATLAB: I need to compare fields in two separate structures, and for the identical field indices, change value of another field within one of the structure. Step 1 is comparing the fields. Is there a simple way to compare them

Okay, this line worked for finding the indices:

[ind, ~]= find(ismember({structure1(:).fieldA}', {structure2(:).fieldB}')

Best Answer

Related Solutions

MATLAB: Structure contains multiple cells with different variables in them I would like to remove variables not present in all cells

MATLAB: I need to compare fields in two separate structures, and for the identical field indices, change value of another field within one of the structure. Step 1 is comparing the fields. Is there a simple way to compare them

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