Unrecognized function or variable 'yalmip'.

matlab should known sdpvar in the code becuse if i used help it give me the meaning of it but it said instead

Unrecognized function or variable 'yalmip'.

Error in sdpvar (line 518)
[mt,variabletype,hashed_monoms,current_hash] = yalmip('monomtable');

% Define the partially specified Euclidean distance matrix
D = [0 1 0 3;     1 0 2 0;     0 2 0 0;     3 0 0 0];

% Define the size of the matrix
n = size(D, 1);

% Define the optimization variables
X = sdpvar(n, n);

% Set up the optimization problem
Constraints = [X == semidefinite(n), diag(X) == zeros(n, 1), X >= 0];
Objective = sum(sum((X - D).^2));
Options = sdpsettings('solver', 'mosek');

% Solve the optimization problem
optimize(Constraints, Objective, Options);

% Extract the completed Euclidean distance matrix
D_complete = value(X);

[Dyuman Joshi]

Have you downloaded and installed YALMIP?

[Hajar Alshaikh]

i dont know how can i check am I install it or not

[Hajar Alshaikh]

I want also to check or insatll the CVX package

[Luca Ferro]

use the command ver to find every package installed and visible

Answer 1

[Sachin]

Hi @Hajar Alshaikh

As per my understanding you are facing issue in ‘yalmip’ implementation. Referring the following information might be of good help to you assuming that you are using MATLAB R2022b.

1. Check if you have installed ‘yalmip’ in your system by following command in MATLAB.

     V = yalmip('version'); % to check version of 'yalmip'

2. If You have not added the path after downloading the zip file.

• Download the ‘yalmip’ https://yalmip.github.io/download/
• To add path, open ‘yalmip’ folder in your MATLAB.
• Right click on the folder, you will see add to path.

You can refer the following information to know more about add path.

https://www.mathworks.com/matlabcentral/answers/116177-how-to-add-a-folder-permanently-to-matlab-path

https://www.mathworks.com/help/matlab/ref/addpath.html