s = []; s(1).time = 8; s(1).temp = 20; s(2).time = 10; s(2).temp = 22; oldField = 'temp'; newField = 'temperature'; sc = []; sc(1).time = 8; sc(1).temperature = 20; sc(2).time = 10; sc(2).temperature = 22; sa = renamefield(s, oldField, newField); assert(isequal(sc,sa))

s = []; s(1).first = 'Walt'; s(1).last_name = 'Whitman'; s(1).score = 73; s(2).first = 'Carl'; s(2).last_name = 'Sandburg'; s(2).score = 91; oldField = 'first'; newField = 'first_name'; sc = []; sc(1).first_name = 'Walt'; sc(1).last_name = 'Whitman'; sc(1).score = 73; sc(2).first_name = 'Carl'; sc(2).last_name = 'Sandburg'; sc(2).score = 91; sa = renamefield(s, oldField, newField); assert(isequal(sc,sa))