Can optimizer() take cell array as decision variables?

[XB G]

Hi Johan,

I'm trying to solve a problem using optimizer object, my decision variables are x and y, parameter is the variable `para`;

y is a n-by-1 vector and x is defined as a cell array (following your suggestions in my previous question).

I tried to build an optimizer object, but got the following error

It seems to be caused by the x variable, which is a cell array.

Any possibilities to use optimizer in this case?

Code is attached too.

Thanks!

[XB G]

it looks like I can do this way:

problem = optimizer(constr,1,[],para,{x{:},y});

[Johan Löfberg]

you have a cell of cells of sdpvars. That's not supported, only cells of sdpvars

[NAOYA KUMAGAI]

I actually stumbled upon the same [problem, only XGB's solution doesn't work in my case since I have multiple cells of cells of sdpvars that I want to retrieve from the optimizer. 

Dr. Lofberg, you mention that cell of cells of sdpvars are not supported, but cells of sdpvars are supported; how would I create the latter? 

The code in "Getting Started", for example, creates a cell of cells of sdpvars, and I cannot find a way to create a simple cell of sdpvars. 

[Johan Löfberg]

as descried above, stuff like {x{:},u{:}} or {[x{:}],[u{:}]} depending on whether you want to flatten each cell first

I don't know of any example working with cells of cells of sdpvars. x=sdpvar([5 5 5],[1 1 1]) is a cell of sdpvars, and [x{:}] would flatten it to a 5x3 sdpvar

[NAOYA KUMAGAI]

Thank you. I got it to work using what you told me above!

The cell of cells was a misconception :)