BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
mathmannix
Obsidian | Level 7

Hello,

I am trying to run PROC NLP with linear constraints. When I add a new lincon that I need:

 

 

...
 n8 + n9 + n10 + n11 + n12 + n13 + n14 + n15 = 300,
...

 

I get this:

WARNING : Failure computing feasible point. You may need to increase the value 1E-8 of the LCEPS=option.

and it produces no results.

Why is this happening? How can I fix it?

Thanks!

 

1 ACCEPTED SOLUTION

Accepted Solutions
RobPratt
SAS Super FREQ

Please note that PROC NLP is a legacy procedure that, as of SAS/OR 14.2 on SAS 9.4M4, is no longer even documented.  PROC OPTMODEL is recommended instead.

View solution in original post

4 REPLIES 4
ballardw
Super User

What did you change the LCEPS option to?

 

mathmannix
Obsidian | Level 7
I haven't used that option (so whatever the default is)
mathmannix
Obsidian | Level 7
I tried making it 1E-4 instead of default 1E-8 and it produced the same [lack of] results and warning. Using 1E-2 makes the system freeze.
RobPratt
SAS Super FREQ

Please note that PROC NLP is a legacy procedure that, as of SAS/OR 14.2 on SAS 9.4M4, is no longer even documented.  PROC OPTMODEL is recommended instead.

sas-innovate-wordmark-2025-midnight.png

Register Today!

Join us for SAS Innovate 2025, our biggest and most exciting global event of the year, in Orlando, FL, from May 6-9. Sign up by March 14 for just $795.


Register now!

Multiple Linear Regression in SAS

Learn how to run multiple linear regression models with and without interactions, presented by SAS user Alex Chaplin.

Find more tutorials on the SAS Users YouTube channel.

Discussion stats
  • 4 replies
  • 1735 views
  • 1 like
  • 3 in conversation