rmfield
rmfield(s, field) removes from the struct object s, fields specified by field.
Examples
> person = struct('name', 'antonis', 'gender', 'm', 'age', 28, 'height', 1.78, 'weight', 81) [person:1x1 struct] > person# name: antonis gender: m age: 28 height: 1.78 weight: 81 > rmfield(person,'weight') > person# name: antonis gender: m age: 28 height: 1.78 > rmfield(person,['gender';'height']) > person# name: antonis age: 28 > rmfield(person,{'age'}) > person# name: antonis > person.name# antonis > person.age# error while trying to access matrix "person" data: "age" identifier not found in struct object