How to create a duplicate array in Matlab

Question

I am trying t create an exact copy, duplicate, of an already created and populated array in Matlab. I grasp that I could just use a loop to copy all the fields, but isn't there an easier way?

The created array is an array of structs. My code so far is as follows.

Thank you for all your help in advance.

a = 1;
window = eye_record.x_pos_measured_deg; %zeros(length(eye_record));
disT = .50;

for i=1:length(eye_record)
    %window(i) = eye_record(i).x_pos_measured_deg;
    dis = (max(window(a:i)) - min(window(a:i)));
    if (dis <= disT)
        eye_record(i).xy_movement_EMD = 1;
        fixation_counter = fixation_counter + 1;
    else
        eye_record(i).xy_movement_EMD = 2;
        a = i;
        saccade_counter = saccade_counter + 1;
    end
end

IKavanagh · Accepted Answer · 2015-09-26 20:28:35Z

2

If A is your already created array you can create an exact copy by assigning it to a new variable

>> B = A;

For example

>> A(1) = struct('Name', 'A');
>> A(2) = struct('Name', 'B');
>> B = A
B = 

1x2 struct array with fields:

    Name
>> B(1).Name
ans =

A
>> B(2).Name
ans =

B

edited Sep 26, 2015 at 20:28

answered Sep 26, 2015 at 20:19

IKavanagh

6,20711 gold badges46 silver badges49 bronze badges

Sign up to request clarification or add additional context in comments.

6 Comments

user3534918 Over a year ago

I think that is what is there? I get an error stating that the "Index exceeds matrix dimensions". How is that possible??

IKavanagh Over a year ago

@user3534918 That is where? In your question? I don't see what you mean.

user3534918 Over a year ago

Sorry. I think that my code is doing what you suggested? I honestly am not certain though.

IKavanagh Over a year ago

@user3534918 I am not certain. If you tell me what variables you are trying to copy I can help?

user3534918 Over a year ago

eye_record is the array of structs, I was hoping to be able to copy just the x_pos elements into window without having to use the loop. Does that help?

|

Collectives™ on Stack Overflow

How to create a duplicate array in Matlab

1 Answer 1

6 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

6 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related