Unrecognized function or variable 'yalmip'.

Question

Hajar Alshaikh 2023-3-5

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https://ww2.mathworks.cn/matlabcentral/answers/1923285-unrecognized-function-or-variable-yalmip

回答： Sachin 2023-3-13

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);

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Hajar Alshaikh 2023-3-5

I want also to check or insatll the CVX package

Luca Ferro 2023-3-6

use the command ver to find every package installed and visible

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Answer 1

Sachin 2023-3-13

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在 MATLAB Online 中打开

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.