All classes LINGO Syllabus · Episode 3 of 3

LINGO Class #3: Aggregate Production Planning

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Aggregate production planning for 6 months in LINGO: regular production, overtime, subcontracting, and inventory with balance equation, @IF for initial inventory, table plan with @WRITEFOR (minimum cost 159120), then finding the regular capacity level with @GIN (120 units per month, cost 158165), in 12 steps.

Software: LINGO 18
Level: Beginner
Duration: ± 7 min
Series total: 22 min · 3 videos
Published: October 6, 2026

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Introduction

A 6-month production plan with the lowest cost, Lingo calculates it in an instant and prints it as a neat table. Hello, welcome back to Cerdas Inovasi Digital. In part three of this Lingo tutorial, we are creating a 6-month aggregate production planning model then looking for the most efficient regular capacity level. Let's get started. Aggregate planning concept, Every month, the company can produce with regular rush. overtime, or subcontracting. Excess production is stored as inventory and incurs holding costs. The key is the race equation, Initial stock plus production minus demand equals ending stock. This is data about case number 6, demand and regular capacity, overtime, and subcontracting from January to June. Unit cost 200, 250, and 280, with a holding cost of 15. Initial stock of 20 units, and the ending inventory in June must be 20 units.

Problem Result Ga: minimum cost 159120 0

Question 6B, Regular labor capacity is intended to remain at the same level each month. The way to do it, replace RT with a single variable RL, discard regular capacity limits, and let Lingo find the best RL value as an integer.

Problem Result 6b: regular level 120 units/month

Done. We have completed the entire problem with Lingo, from a simple model to aggregate planning. Hope this was helpful. Like, subscribe, and share. See you in the next tutorial, Cerdas Inovasi Digital. Want to master optimization with Lingo? Cerdas Inovasi Digital offers Lingo and Excel Solver courses, optimization model development services for production, distribution, and scheduling, as well as selling Lingo model files from this series complete with PDF explanations. Contact us via WhatsApp, or visit cerdasinovasidigital.com.

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Transcript

0:03Introduction

4:36Problem Result Ga: minimum cost 159120 0

6:33Problem Result 6b: regular level 120 units/month

Ask the class material

My notes

Questions & answers

Your instructor

Recommended classes for you

Need more than a video?

Transcript

0:03Introduction

4:36Problem Result Ga: minimum cost 159120 0

6:33Problem Result 6b: regular level 120 units/month

Ask the class material

My notes

Questions & answers

Your instructor

Introduction

Problem Result Ga: minimum cost 159120 0

Problem Result 6b: regular level 120 units/month

Introduction

Problem Result Ga: minimum cost 159120 0

Problem Result 6b: regular level 120 units/month