"What is the simplest way to do this?"
With a structure array this would be easy with some indexing. It would also make accessing the data easier.
But because you are using a scalar structure with lots of fields (and most likely forced meta-data into the fieldnames) you will have to do this a longer way e.g. one of these:
- STRUCT2CELL, insert, CELL2STRUCT.
- ORDERFIELDS:
existingStruct.a.val1 = 1;
existingStruct.a.val2 = 2;
existingStruct.b.val1 = 3;
existingStruct.b.val2 = 4;
existingStruct.c.val1 = 5;
existingStruct.c.val2 = 6;
existingStruct.d.val1 = 7;
existingStruct.d.val2 = 8;
new.val1 = 9;
new.val2 = 10;
existingStruct.new = new;
existingStruct = orderfields(existingStruct,{'a','b','new','c','d'})
You can use FIELDNAMES() to get a cell array of the fieldnames.
