Yalmip error : undefined function sdpvar

Question

Sana Ben Hmouda 2016-8-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/299289-yalmip-error-undefined-function-sdpvar

评论： chen jiyuan 2021-11-4

Hello I have installed yalmip. Then i checked that it works through writing yalmip in the command window , and it gives : yalmip yalmip Returns various information about yalmip

    yalmip can be used to check version numbers and
    find the SDPVAR and SET objects available in workspace
    EXAMPLES
     V = yalmip('version')     % Returns version
     yalmip('nvars')           % Returns total number of declared variables
     yalmip('info')            % Display basic info.
     yalmip('solver','tag')    % Sets the solver 'solvertag' (see sdpsettings) as default solver
If you want information on how to use yalmip, you are advised to check out
http://users.isy.liu.se/johanl/yalmip/
    See also YALMIPTEST, YALMIPDEMO

now when i try to define an sdpvar it gives an error message: undefined function sdpvar. how can i solve this please ? Thanks in advance

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Johan Löfberg 2016-8-11

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/299289-yalmip-error-undefined-function-sdpvar#answer_231502

You must have failed with the installation such as unzipping and/or setting the path. Show us your path, and a "dir" performed in the yalmip directory

BTW, a much better place to post yalmip questions is https://groups.google.com/forum/?fromgroups#!forum/yalmip

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

chen jiyuan 2021-11-4

在 MATLAB Online 中打开

The commend run like

constraint_ml = set(cone(zz,y2));

, and an error comes. Could please help me to solve this problem.

"SET has been considered obsolete for many years, and the time has come...

Update your code. https://yalmip.github.io/tutorial/basics/

wrong use constraint/set

Obsolete command"

请先登录，再进行评论。

Answer 2

Sana Ben Hmouda 2016-8-11

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/299289-yalmip-error-undefined-function-sdpvar#answer_231505

编辑：Sana Ben Hmouda 2016-8-11

Hello, Thanks a lot for your prompt answer. I may have resolved this problem by one of these solutions that i have tried all: - uninstall all previous yalmip versions existing in my matlab path / or in my laptop - download the newest version of yalmip - add the required folders to matlab path in the same order mentioned in the tutorial so that i get sure that i added them all. - save the already added folders - run " clear classes " before trying yalmiptest

Then everything worked fine Thanks again for your help and i do appology for mentioning this late.

Sana