add a new field to structure

Hi all friends

I have a structure variable; this variable is defined as follows:

Student structure; consists of the following fields

Name

Age

Suppose that I fill it with data (for example five students)

Later I want to add another field (for example degree field) to student structure

How can I do that and fill the degree field with data

Please help me

Answer 1

[Wayne King]

 teststruct = struct('names',{'bob','dave','sara'});
 % now add field called data
 [teststruct(:).data] = deal(randn(3,1));
 fieldnames(teststruct)

[Kyle Wright]

Is this answer working as intended?

I would assume that you used...

deal(randn(3,1))

...using a "3" so that it would match the length of the struct as it is. However, this code puts the 3x1 array into EACH of the (.data) fields, rather than distributing one of each of the vector to one of each of the (.data) fields.

[Stephen]

C = num2cell(randn(3,1));
[teststruct(:).data] = deal(C{:})

How this works is explained in the MATLAB documentation:

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

Answer 2

[Majid Al-Sirafi]

thank you sir, that is I want

best regards