how to create an enumeration class of strings ??

Hi,

I'd like to create some enumeration classes to replace the hard-coded string values. But I met the problem occurs in the attached picture.

It's OK to derive from int , but fails to derive from char or string.

Anyone has some idea ? thank you in advance.

(I need the string values , to guarantee the code transition.)

[Greg]

Why not just use a protected categorical array?

Answer 1

[Owen Zhang]

i used the following approaches of using class constants.

and to replace hardcoded from:

if strcmp(somevar, 'PDOS')

to

if strcmp(somevar, LossModels.PDOS)

but still , it's curious why enumeration class of strings is not supported in matlab.

Answer 2

[Brad Carman]

It's also possible to so simply convert the enumeration name to a char

classdef SolverType
   enumeration
        NE_BACKWARD_EULER_ADVANCER
        NE_PARTITIONING_ADVANCER
   end
end

Then to get char:

char(SolverType.NE_BACKWARD_EULER_ADVANCER)

Which gives

ans =

    'NE_BACKWARD_EULER_ADVANCER'