Optimization Tooling

When I use the "DistributionInverseCumulative" function for beta distribution, I get the following error message from Visual C++:--Assertion failed!Program: ...Aimms\4.85.5.3-x64-VS2017\Bin\libaimms3.dllFile: c:\gitlab-runner\builds\pvap61xc\0\aimms\a...\beta.cppLine: 173Expression: istat==0--In the MainInitialization I implemented the function as follows:b_p_1 := 6;b_q_1 := 3;b_a_1 := 1;b_b_1 := 5;for n doy(n) := DistributionInverseCumulative(Beta(b_p_1,b_q_1,b_a_1,b_b_1), Uniform(0,1))endfor;For other distributions (e.g. normal distribution) the "DistributionInverseCumulative" works without any problems.I would appreciate any pointers on what I should do so that this function doesn't produce an error message?

I am trying to open a project that was originally written in version 4.37. However I have a Community License so the earliest version I can use is 4.77. I have tried opening this project in both 4.77 and 24.2 and both will crash upon opening the project with no error message.I understand the large difference in versions may be causing an issue but I have no way to test on earlier versions. Is there any way I can identify what exactly is causing this issue and could it be something other than a version issue?

To help us develop relevant data integration support we would like to ask you a few questions about your ‘BI platform’ (PowerBI, Tableau, etc and the data storage for 'feeding’ it):Do you want to visualize or analyze AIMMS data in your this BI platform? Which BI platform do you use (PowerBI, Tableau, etc.)? What data storage technology is used for ‘feeding’ your BI platform? Examples: SQL Server database, Snowflake, Databricks, file storage, etc. What mechanisms and processes are in place to retrieve data from other systems into this data platform? Is it done automatically or manually triggered? How often is data retrieved? Any quality controls in place? Etcetera.Really curious to hear from you.Thanks. 

Hi! Does anyone know how to interrupt the calculation process and display the current results?

Hi all, I am aware that AIMMS will use all of the indices specified on the Left Hand Side of an assignment statement to loop over all combinations.When trying out something in a test project I am working on, I wanted to use this logic, but found that this does not work anymore when you are using formatstring on the LHS. Was wondering if this is on purpose or whether this behavior should be possible Example that works:spStringParameter( StringToElement(sTargetSet, iSource, 1) ) := formatstring("Test :: element %e", iSource) ;  Example that does not work:spStringParameter( StringToElement(sTargetSet, formatstring("%e", iSource), 1) :=  formatstring("Test :: element %e", iSource) ;  When running the second one, I get an error indicating that the scope of iSource has not been specified. The above is a minimal example of the problem, not completely the same as what I had. I can work around it by either putting the statement in an explicit for-loop, or create the mapping isource → itarget in

I have one set - Modes, with multiple indexes, mp, m, and mn. These translate to Previous Mode, Current Mode, and Next Mode.In WebUI, I have a table with a parameter that includes two of these indexes, Previous Mode and Current Mode.I’d like to change the name of mp to be Previous Mode and m to be Current Mode. It seems, though, that in fieldnames.properties, I can only change the name of the set (Modes).  Any ideas? 

Dear all, I was very happy to see that an ADLS has been added for every AIMMS Cloud account. We would like to use this, and have found that it works well on the Cloud, however we cannot get it to work locally (from a local AIMMS Developer environment): it looks like we need the Storage Access Key for the ADLS, but I haven’t been able to figure out where to find/access this. Could anyone help us out? Thanks!Meike

dssuc::PR_UserManagement_Intilization(    LP_Set_IsDeveolperDetails_Required : 1 ,     Sp_thisappallowed_for_nonemployee : "Yes" ,     LS_ADGroup_Usageallowed           : {'E.G','C.G'},     LS_ADGroup_Trainingallowed        : {'E','T.G'} ); PR_UserManagement_Intilization is procedure taking 4 arguments and last 2 is sets.  I am trying to pass sets as shown above and shown belowdssuc::PR_UserManagement_Intilization(    LP_Set_IsDeveolperDetails_Required : 1 ,     Sp_thisappallowed_for_nonemployee : "Yes" ,     LS_ADGroup_Usageallowed           : data{'P.G','R.p'},     LS_ADGroup_Trainingallowed        : data {'P.G','R.G'} ); Its showing errorerror for first one is The 'LS_ADGroup_Usageallowed' argument expects a direct reference to an identifier. data is not expectedPlease help me to resolve this issue 

There is a new Master Course available! This course discusses a range of topics that help you develop and deploy a professional WebUI application. Materials provided are in AIMMS 4.87 example.  Click here to check out the course! Some prerequisites:Advanced knowledge of AIMMS. Initial understanding of HTML, websocket and JSON.What you'll learn:understand - How the different components of a WebUI application work together. This will help you understand where potential (performance) bottlenecks in your application may occur. awareness - Of some advanced WebUI widgets that might help you to improve the UI/UX for your end-users, awareness - Of some some good practices that help you prepare your AIMMS application for being used in a complex server-client based, multi-user (cloud) environment.Use this post to discuss any topic you like related to WUI104 course! 

Anyone happen to know how to hide the scrollbars in a compact scalar widget in a side panel?  This is annoying us: 

Now and then, at AIMMS user support, we get questions about creating archives and extracting from archives. I briefly summarized some options available here as illustrated below.After executing the four buttons, the contents of sampleFolder are copied to sampleCopyFolder. 

Hi everyone!   Is there a way to change if I want to show or not the unit and the number of decimals by parameter?   Example:    My wish: 500     |     0.00%   Thanks.

Dear AIMMS Community,Does anyone have any tips/documentation/experience for moving parameters and data to a different CDM category? (or, perhaps alternatively, create a new parameter in the correct category and then migrating the data). As background: for a customer we are using scenario functionality, with each scenario consisting of 3 CDM categories: master data, dynamic data and planning data. Scenarios can share the same version of this data, e.g. 2 scenarios using the same master data but different dynamic & planning data.Currently the customer doesn't use this option of shared data, because a few parameters within the master data category are actually dynamic. So we want to move these parameters (or perhaps solve it in a different way?) Does anyone have experience with moving data to a different category? We already have many scenarios that we want to keep, so anything we do should leave those intact (in theory that should be possible, because currently none of the scenarios

Hi all, playing around a bit more with the webui and having some more questions.I want to create a dialog page where the user can upload a couple of files and give the name of the scenario into which these input files should be loaded (potentially some other text based input). In the original winUI, I would create something like this (as example what I want to achieve): Now I am trying to achieve this with a dialog page in the webui, but when I want to add a scalar, I get the following: Where I think there is way too much emphasis on this scalar value. I can make use of the experimental feature of compact scalars, but then it looks weird with scroll bars. Also not sure if I can modify the size of the ‘header’ (label showing now spNewScenarioName) and the actual input field: I think the closest I can get this is creating a table with either scalars, or making a set with ‘headers’ to be put in the labels and create an indexed string parameter over this. That way, it starts to look like t

Hi,I have downloaded the newest AIMMS version (24.1) and opened a project using the AIMMS launcher. However, the JSON WebUI file (..\MainProject\WebUI\webui.json) contains this: "version": "4.67.0". Do I have to update the WebUI manually to get the newest AIMMS WebUI version?Thanks in advance.Kind regards,Martijn

Hello, It seems that when you upload a file using the dex::ReadFromFile (dex 23.1.1.2) and using an excel mapping structure like: <AimmsExcelMapping>    <ExcelSheetMapping name="Demand">        <RowMapping>uploading a wrong sheet name does not results in a failure which I would have expected to be. Do I need to add something to the mapping? Or is this not how it supposed to work?Glad to hear any feedback.Marc

We've published a 'starting point’ for all things related to data integration with AIMMS. It includes a Data Integration Helper that can guide you towards the right solution for your scenario, including a step-by-step guide on how to implement that route. We hope this helps you taking the first steps towards (upgrading your) data integration with AIMMS 🤗. Take a look here!

A job (an AIMMS PRO solver session) may fail, for instance because it ran out of time, ran out of memory, or for some other reason.As an end-user, you can see which jobs failed in the AIMMS PRO portal. But not all end-users know this or remember to check this.As a developer, therefore, you may want to notify yourself, or your end-user(s), of failed jobs, such that appropriate action can be taken timely.Please find enclosed an example of an AIMMS app, whereby the solver session will run out of time after a minute. Its user interface looks like: The UI of the app "fail” that illustrates how to capture failed sessions.In the upper half of this UI the failed jobs of last week are shown. Essential here is a call to the procedure pro::sessionmanager::ListSessionSinceDate and listing only the jobs with a status >= 7 (failures).In the bottom half job that was launched using button "buttonFail” is shown. To the right, the sp_status is filled in he procedure ServerErrorCallback, which is inst

Introduction:In the ever-evolving realm of mathematical modeling, efficiency and precision stand as central pillars. AIMMS, through its Developer License, unveils a revolutionary asset: the Math Program Inspector. More than a mere addition to the modeling toolkit, it acts as a dynamic catalyst, propelling model development towards greater speed and robustness. In this exploration, we delve into the core of AIMMS Math Program Inspector, unraveling its significance and tangible impact in the real world.Within a landscape where efficiency dictates success, the Math Program Inspector positions AIMMS as a frontrunner among its competitors. Unlike traditional methods of model analysis that often entail laborious scrutiny of extensive text outputs, this tool presents a visual and streamlined approach, empowering developers to comprehend and traverse models with unparalleled ease. Whether the task involves incremental adjustments, pinpointing numerical intricacies, or resolving infeasibilities

Hi All,I’m trying to write a parameter with dex using dex::WriteToFile() procedure. The parameter has an index year that is a subset of the calendar year. (simple calendar with unit year). The excel download won’t fill the year column (see screenshot below). I have the latest .dex library 23.1.1.2).  Could anyone explain what went wrong here?

Hi Community.. Please how can i create a sen and subset with 10 Cities? where the Citie 1 is the Depot? .. 

I want to open dialogpage whenever we open application. I have tried to open dialog page from mainintilisation. its giving error. let me know if we should open dialog page from mainintilisation.

i am displaying info in table. How can we create hyper link under value of cell. if i click hyper link it should redirect to dialogue page with parameter filtered based on value of the cell .