Return field in struct whose field name contains a string

i have a struct like the following:

Struct.Data.FieldOne %1000x2 double

Struct.Data.FieldTwo %1000x2 double

Struct.Data.FieldThree %1000x2 double

I want to return the field that contains a string, like the following:

Two = find(Struct.Data, 'Two'); %I don't know what this function would be

that is equevelent to:

Two = Struct.Data.FieldTwo;

Answer 1

[Cris LaPierre]

One way is to use the functions fieldnames and contains.

Struct.Data.FieldOne =1;%1000x2 double
Struct.Data.FieldTwo =2;%1000x2 double
Struct.Data.FieldThree =3;%1000x2 double

% get field names
nm = fieldnames(Struct.Data)

nm = 3×1 cell array
    {'FieldOne'  }
    {'FieldTwo'  }
    {'FieldThree'}

% find which field contains the search string
ind = contains(nm,'Two')

ind = 3×1 logical array
   0
   1
   0

% Dynamically extract the data
two = Struct.Data.(nm{ind})

two = 2

Note that this approach will only work when there is a single match.