Assigning strings from struct variable

Hi everyone! I'm trying to assign string from a structure to a array.

If I try

array=SIGNAL(:).label;

in the command window I get all the strings, but I want to assign it to a variable. If I try with

array=SIGNAL(:).label;

or

array{:}=SIGNAL(:).label;

I just get one of the labels. If I try with...

for i=1:length(SIGNAL)
 array(i,:)=SIGNAL(i).label;
end

It works, but I'm trying to do it without a for in order to save time.

Answer 1

[Stephen23]

Use a comma-separated list:

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists

Depending on the data class of your data:

array = [SIGNAL.label]; % strings
array = {SIGNAL.label}; % cell array of char vectors

For example:

A(1).C = 'hello'; % char
A(1).S = "cat"; % string
A(2).C = 'world'; % char
A(2).S = "hat"; % string
S = [A.S] % string

S = 1×2 string array
    "cat"    "hat"

C = {A.C} % cell of char

C = 1×2 cell array
    {'hello'}    {'world'}

[María-José Castilla]

Trank you!!