topic Re: sas or package - blackbox in SAS Data Science

sas or package - blackbox

dht115 — Wed, 16 Feb 2022 19:59:11 GMT

Hello,

I am trying to use SAS OR package (BlackBox). I am getting error when I run the following code:

ERROR 573-782: Solver 'blackbox' is unknown.

When I use nlp package to solve this problem, I am getting output.

Also is there a way for us to get graphical output for this issue?

Like ODS graphics on;

proc optmodel;
var x {1..2};
x[1].lb = -5;
x[1].ub = 10;
x[2].lb = 0;
x[2].ub = 15;
num pi = constant('PI');
min f = (x[2]-(5.1/(4*pi^2))*x[1]^2+5*x[1]/pi-6)^2 + 10*(1-1/(8*pi))*cos(x[1]) + 10;
solve with blackbox;
print x;
quit;

Re: sas or package - blackbox

SASKiwi — Wed, 16 Feb 2022 20:09:16 GMT

According to the documentation "blackbox" is not one of the solvers available. The available solvers are listed here.

Re: sas or package - blackbox

RobPratt — Wed, 16 Feb 2022 20:36:48 GMT

The black-box optimization solver is available via the SOLVE WITH BLACKBOX statement starting with SAS/OR 15.2:

SAS Help Center: The Black-Box Optimization Solver

Before that, in SAS/OR 15.1, it was called the local search optimization solver and invoked via the SOLVE WITH LSO statement:

SAS Help Center: The Local Search Optimization Solver

In later releases, SOLVE WITH LSO still works as a hidden alias for SOLVE WITH BLACKBOX.

PROC OPTMODEL does support ODS tables:

SAS Help Center: ODS Table and Variable Names

If you are looking for graphical output, you can instead use the CREATE DATA statement to create SAS data sets and then use SGPLOT or other procedures to produce plots.