[TOC]

`rmfield`

Removing field from structure

Usage

`rmfield(S, field)`

S should be a structure array of any size.
field should be a vector of characters.
It returns a copy of S with the field field removed.
S is unaltered after the execution of the function.

Difference with MATLAB

MATLAB	SIMO
`field` can be a cell array, so that multiple fields can be removed in one function call	Cell array not supported
`field` can be a string	String not supported. Use character array instead.
Remove one or more fields in one function call	Remove just one field in one function call

Example

First, we create a structure array of 3 cars with fields owner, manufacturer and electric. Then, we obtain a new structure by removing the field electric from all elements of cars. Note that the original array car was not modified by the function refield.

Input

% Car 1
car(1).owner = 'marc';
car(1).manufacturer = 'mazda';
car(1).electric = false;

% Car 2
car(2).owner = 'jane';
car(2).manufacturer = 'tesla';
car(2).electric = true;

% Car 3
car(3).owner = 'bob';
car(3).manufacturer = 'bmw';
car(3).electric = false;

% Print out the structure array
car

% Remove the field electric.

disp('After removing the field')
car_copy = rmfield(car,'electric')

Output

car =
 struct array (1 x 3) with fields:
 owner, manufacturer, electric

After removing the field

car_copy =
 struct array (1 x 3) with fields:
 owner, manufacturer