fieldnames
fielnames(s) returns a cell array of strings with the field names of s, s being a struct object.
Examples
> s.name = {'sean';'paul'}
> s.age = [23;32]
> fieldnames(s)#
[name]
[age]
Resources
> s.name = {'sean';'paul'}
> s.age = [23;32]
> fieldnames(s)#
[name]
[age]