Thanks a lot. But do you have a small example I can continue on? It important that the values are not absolute, but fractions of the needed quantities
ons. 20. mars 2024 kl. 15:21 skrev Meketon, Marc < [email protected]>: > In general, if you have variables rpos_i and rneg_i (the ith constraint), > and you have: > > > > [linear equation i] = rpos_i – rneg_i > > > > Then (rpos_i + rneg_i) is the absolute value > > > > If you then have > > rpos_i + rneg_i <= z > > > > z would be the maximum absolute value, and then you just minimize z. > > > > *From:* [email protected] > <[email protected]> *On Behalf Of *Dušan > Plavák > *Sent:* Wednesday, March 20, 2024 7:02 AM > *To:* Bjørnar Ness <[email protected]> > *Cc:* [email protected] > *Subject:* Re: diet problem disregarding cost > > > > > > *CAUTION:* This email originated outside the company. Do not click links > or open attachments unless you are expecting them from the sender. > > > > Hi, feel free to send me an email. I did this ~ 9-10 years ago for our > startup where we generate personalized nutrition plans for our clients > using glpk. > > > > Basically you want to build bunch of inequalities and most probably you > want to have more variables not only nutrients... Depend on your exact use > case. > > > > On Wed, Mar 20, 2024 at 4:34 PM Bjørnar Ness <[email protected]> > wrote: > > Can anyone point me to an diet problem example that tries to minimize > max deviation in percentage for each nutrient, disregarding cost? > > -- > Bj(/)rnar > > > > > -- > > S pozdravom Dušan Plavák > > ------------------------------ > This e-mail and any attachments may be confidential or legally privileged. > If you received this message in error or are not the intended recipient, > you should destroy the e-mail message and any attachments or copies, and > you are prohibited from retaining, distributing, disclosing or using any > information contained herein. Please inform us of the erroneous delivery by > return e-mail. Thank you for your cooperation. For more information on how > we use your personal data please see our Privacy Notice > <https://www.oliverwyman.com/policies/privacy-notice.html>. > -- Bj(/)rnar
