sortStructByField.m
bca67b9e4cc2pezhman_excelExport

sortStructByField.m
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			function sortedST = sortStructByField(ST,field)
			try
			STfields = fieldnames(ST);
			STcell = struct2cell(ST);
			sz = size(STcell); % Notice that this is a 3 dimensional array.
			% For MxN structure array with P fields, the size
			% of the converted cell array is PxMxN

			% Once it's a cell array, you can sort using sortrows:

			% Convert to a matrix
			STcell = reshape(STcell, sz(1), []); % Px(MxN)

			% Make each field a column
			STcell = STcell'; % (MxN)xP

			column=0
			% Sort by field
			for k=1:length(STfields)
			if isequal(STfields(k),field)
			column = k;
			end
			end
			% fieldName=char(STfields(1))
			% field=char(field)
			% fieldColum = find(fieldName(1:length(field))==field)
			if column == 0
			['Warning: field ' char(field) ' not found in dicom metadata']
			sortedST = ST;
			return
			else
			fieldColumn = column;
			STcell = sortrows(STcell, fieldColumn);

			%And convert it back to a structure array:

			% Put back into original cell array format
			STcell = reshape(STcell', sz);

			% Convert to Struct
			STsorted = cell2struct(STcell, STfields, 1);
			sortedST = STsorted;
			end
			catch except
			except.identifier
			except.message
			['exception arised during dicom sorting by field']
			end