# Latest

**URL:** https://discourse.julialang.org/latest.md?page=187

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

**Page:** 188

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## [Remove agent from space, but not scheduler](https://discourse.julialang.org/t/remove-agent-from-space-but-not-scheduler/127842)

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**Author:** [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Replies:** 18\
**Last updated:** [April 8, 2025, 2:56pm UTC](https://discourse.julialang.org/t/remove-agent-from-space-but-not-scheduler/127842 "2025-04-08T14:56:53Z")

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Hello, I have an agent based model in which some agents are removed from the space so they cannot interact with other agents for some number of iterations. I can remove agents with remove\_agent! and put them in a separa…

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## [Absence of method to convert NamedTuple -\> Dictionary?](https://discourse.julialang.org/t/absence-of-method-to-convert-namedtuple-dictionary/127472)

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**Author:** [@Jordan\_Cluts](https://discourse.julialang.org/u/Jordan_Cluts)\
**Replies:** 4\
**Last updated:** [March 28, 2025, 8:28pm UTC](https://discourse.julialang.org/t/absence-of-method-to-convert-namedtuple-dictionary/127472 "2025-03-28T20:28:14Z")

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Is there a reason why we don’t and/or can’t have a method that converts a named tuple into a Dictionary? Currently passing a named tuple to a Dictionary constructor simply errors as there is no defined method. The soluti…

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## [What is the status of ReinforcementLearning.jl](https://discourse.julialang.org/t/what-is-the-status-of-reinforcementlearning-jl/126326)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 24\
**Last updated:** [April 8, 2025, 2:25pm UTC](https://discourse.julialang.org/t/what-is-the-status-of-reinforcementlearning-jl/126326 "2025-04-08T14:25:04Z")

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Hi All, I would like to ask, what is the status of ReinforcementLearning.jl? Specifically, if there is any active community around and it is therefore worth to learn it, use it, and fix the bugs. To an outside observer…

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## [Why does SMatrix allocate in this case?](https://discourse.julialang.org/t/why-does-smatrix-allocate-in-this-case/127808)

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**Author:** [@Ahmed\_Salih](https://discourse.julialang.org/u/Ahmed_Salih)\
**Replies:** 3\
**Last updated:** [April 8, 2025, 2:12pm UTC](https://discourse.julialang.org/t/why-does-smatrix-allocate-in-this-case/127808 "2025-04-08T14:12:34Z")

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Hello everyone, Suppose I have: using StaticArrays using Chairmarks N = 10 Dimensions = 2 DimensionsPlus = Dimensions + 1 FloatType = Float64 SVectors = rand(SVector{DimensionsPlus, FloatType}, N) MVectors =…

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## [Supressing warnings from documenter block](https://discourse.julialang.org/t/supressing-warnings-from-documenter-block/127844)

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**Author:** [@Torkel](https://discourse.julialang.org/u/Torkel)\
**Replies:** 0\
**Last updated:** [April 8, 2025, 1:09pm UTC](https://discourse.julialang.org/t/supressing-warnings-from-documenter-block/127844 "2025-04-08T13:09:40Z")

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I have a block produced using Documenter which runs some code. Is there a way to prevent the warnings (and other output for that matters) from printing to the built documentation?

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## [Using Catalyst and Symbolics/ModelingToolkit together](https://discourse.julialang.org/t/using-catalyst-and-symbolics-modelingtoolkit-together/127601)

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**Author:** [@Menno](https://discourse.julialang.org/u/Menno)\
**Replies:** 7\
**Last updated:** [April 8, 2025, 1:00pm UTC](https://discourse.julialang.org/t/using-catalyst-and-symbolics-modelingtoolkit-together/127601 "2025-04-08T13:00:21Z")

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Hi there! I have been very impressed by Catalyst and using it to solve (stochastic) differential equations, but have been having trouble using the generated equations for other tasks. More specifically, I have been tryin…

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## [Debugging non-finite Jacobian elements (w/ ForwardDiff)](https://discourse.julialang.org/t/debugging-non-finite-jacobian-elements-w-forwarddiff/127448)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 4\
**Last updated:** [April 8, 2025, 12:02pm UTC](https://discourse.julialang.org/t/debugging-non-finite-jacobian-elements-w-forwarddiff/127448 "2025-04-08T12:02:04Z")

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I have a rather complex calculation that maps a vector of floats to a longer vector of floats. At some inputs, ForwardDiff gives me a Jacobian where some elements are NaN. Inputs are of course finite, and so is the func…

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## [Findall() not behaving well for an array of size 1](https://discourse.julialang.org/t/findall-not-behaving-well-for-an-array-of-size-1/127839)

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**Author:** [@atiyabzafar](https://discourse.julialang.org/u/atiyabzafar)\
**Replies:** 4\
**Last updated:** [April 8, 2025, 11:59am UTC](https://discourse.julialang.org/t/findall-not-behaving-well-for-an-array-of-size-1/127839 "2025-04-08T11:59:11Z")

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Hi, I was just implementing a code for my work and inside a very long code, I had used findall() to find the set of numbers that satisfy certain property. But I found an unexpected result and when I tried debugging the c…

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## [Is there a way to load only a part of a dataset in a JLD2 file?](https://discourse.julialang.org/t/is-there-a-way-to-load-only-a-part-of-a-dataset-in-a-jld2-file/127835)

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**Author:** [@kockahonza](https://discourse.julialang.org/u/kockahonza)\
**Replies:** 3\
**Last updated:** [April 8, 2025, 11:34am UTC](https://discourse.julialang.org/t/is-there-a-way-to-load-only-a-part-of-a-dataset-in-a-jld2-file/127835 "2025-04-08T11:34:51Z")

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Hi, the question is pretty much the title. I’ve ran a largeish computation on a cluster with lots of ram so it can fit its results (the largest of which is a 8 dimensional array of vectors of vectors which is probably no…

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## [Get the constraints matrix from a SDP relaxation](https://discourse.julialang.org/t/get-the-constraints-matrix-from-a-sdp-relaxation/127222)

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**Author:** [@gustave\_Robichon](https://discourse.julialang.org/u/gustave_Robichon)\
**Replies:** 6\
**Last updated:** [April 8, 2025, 9:40am UTC](https://discourse.julialang.org/t/get-the-constraints-matrix-from-a-sdp-relaxation/127222 "2025-04-08T09:40:51Z")

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hello everyone :slight\_smile: I am using Julia, and I am programming some SDP. For this, I use JuMP to prepare the problem, then Hypatia to solve it. But, after the constraints are cleaned (by Hypatia), I would like to …

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## [Multiple Loops in Julia](https://discourse.julialang.org/t/multiple-loops-in-julia/127814)

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**Author:** [@MarcoBPCode](https://discourse.julialang.org/u/MarcoBPCode)\
**Replies:** 7\
**Last updated:** [April 8, 2025, 7:47am UTC](https://discourse.julialang.org/t/multiple-loops-in-julia/127814 "2025-04-08T07:47:31Z")

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HI, I’m writing a code that need multiples loops inside each other and i want to make parallelization it. Loop1{ Loop2{ Loop3{ Loop4{ … } } } } Can recommended some techique ? o maybe something to read o impl…

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## [Solving a function = 0, where my function is approximated by a vector from a differential equation solution](https://discourse.julialang.org/t/solving-a-function-0-where-my-function-is-approximated-by-a-vector-from-a-differential-equation-solution/127811)

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**Author:** [@matyaspayn](https://discourse.julialang.org/u/matyaspayn)\
**Replies:** 4\
**Last updated:** [April 8, 2025, 7:44am UTC](https://discourse.julialang.org/t/solving-a-function-0-where-my-function-is-approximated-by-a-vector-from-a-differential-equation-solution/127811 "2025-04-08T07:44:10Z")

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Hello, This problem is quite specific and difficult to explain, but I am quite stuck so I wanted to ask to see if anyone has gotten over this problem before. I have solved a differential equation and am now analysing t…

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## [Packagecompiler](https://discourse.julialang.org/t/packagecompiler/127829)

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**Author:** [@kirit\_ved](https://discourse.julialang.org/u/kirit_ved)\
**Replies:** 0\
**Last updated:** [April 8, 2025, 3:30am UTC](https://discourse.julialang.org/t/packagecompiler/127829 "2025-04-08T03:30:58Z")

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i have created julia project it runs from repl after activating it. It compiles successfully using Packagecompiler julia package. but when run (the compiled executable) windo just opens & closes it. how to correct this f…

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## [\`JuMP\` macros with \`RuntimeGeneratedFunctions\`](https://discourse.julialang.org/t/jump-macros-with-runtimegeneratedfunctions/127815)

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**Author:** [@sstroemer](https://discourse.julialang.org/u/sstroemer)\
**Replies:** 1\
**Last updated:** [April 7, 2025, 10:36pm UTC](https://discourse.julialang.org/t/jump-macros-with-runtimegeneratedfunctions/127815 "2025-04-07T22:36:01Z")

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The following MWE import JuMP, RuntimeGeneratedFunctions RuntimeGeneratedFunctions.init(@\_\_MODULE\_\_) code = """ model = JuMP.owner\_model(x\[1\]) JuMP.@constraint(model, \[t = 1:10\], x\[t\] \>= 0) """ code\_ex = Meta.parse(…

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## [Using \[weakdeps\] and \[extensions\] to carry on a test module](https://discourse.julialang.org/t/using-weakdeps-and-extensions-to-carry-on-a-test-module/96247)

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**Author:** [@lmiq](https://discourse.julialang.org/u/lmiq)\
**Replies:** 6\
**Last updated:** [April 7, 2025, 9:11pm UTC](https://discourse.julialang.org/t/using-weakdeps-and-extensions-to-carry-on-a-test-module/96247 "2025-04-07T21:11:58Z")

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For some packages it is useful to have a TestModule that defines functions to generate data, for example. It is many times interesting that these functions are available for the package user, particularly to provide exam…

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## [Shift label coordinates in GMT](https://discourse.julialang.org/t/shift-label-coordinates-in-gmt/127818)

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**Author:** [@angeloaliano1](https://discourse.julialang.org/u/angeloaliano1)\
**Replies:** 1\
**Last updated:** [April 7, 2025, 9:26pm UTC](https://discourse.julialang.org/t/shift-label-coordinates-in-gmt/127818 "2025-04-07T21:26:39Z")

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Dear all, I have the code in GMT: using GMT pts\_europa =\[ 3.1420 48.9447 2.3522 48.8566 -0.1278 51.5074 -3.7038 40.4168 4.8357 45.7640 4.3517 50.8503 19.0402 47.4979 12.4964 41.8719 18.0683 59.…

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## [Startup file not run on Windows 10?](https://discourse.julialang.org/t/startup-file-not-run-on-windows-10/127788)

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**Author:** [@Torkel](https://discourse.julialang.org/u/Torkel)\
**Replies:** 3\
**Last updated:** [April 7, 2025, 8:10pm UTC](https://discourse.julialang.org/t/startup-file-not-run-on-windows-10/127788 "2025-04-07T20:10:41Z")

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I usually work on Linux, and here I have a .julia/config/startup.jl file which is run when I start julia. I have copied the content of this int my windows computer: C:\\Users\\Torkel\\.julia\\config\\startup.jl However, it …

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## [Pipeline of async tasks with channels](https://discourse.julialang.org/t/pipeline-of-async-tasks-with-channels/127810)

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**Author:** [@rfourquet](https://discourse.julialang.org/u/rfourquet)\
**Replies:** 3\
**Last updated:** [April 7, 2025, 7:53pm UTC](https://discourse.julialang.org/t/pipeline-of-async-tasks-with-channels/127810 "2025-04-07T19:53:37Z")

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I want to do some work on a list, and each step of the “work” depends on the previous one. Some steps can be IO-bound while some other can be CPU-bound. I want for example to organize as follows: do step 1 in parallel …

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## [Working directory](https://discourse.julialang.org/t/working-directory/127797)

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**Author:** [@Magnus\_Lilledahl](https://discourse.julialang.org/u/Magnus_Lilledahl)\
**Replies:** 4\
**Last updated:** [April 7, 2025, 7:53pm UTC](https://discourse.julialang.org/t/working-directory/127797 "2025-04-07T19:53:03Z")

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I have a package that provides some functions that needs data stored in files on the users computer My plan was to require that these files are stored in the same folder as the file that imports (using package) the pack…

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## [Environment for @testitem run in VS-code](https://discourse.julialang.org/t/environment-for-testitem-run-in-vs-code/127740)

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**Author:** [@krcools](https://discourse.julialang.org/u/krcools)\
**Replies:** 1\
**Last updated:** [April 7, 2025, 6:57pm UTC](https://discourse.julialang.org/t/environment-for-testitem-run-in-vs-code/127740 "2025-04-07T18:57:02Z")

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How do you control the environment VS-code sets up to run a @testitem? In particular, how do you include the development version of a dependency? Apologies if this was already answered, as I can imagine it has…

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## [\[Suggestion request\] An advance book for data science with Julia?](https://discourse.julialang.org/t/suggestion-request-an-advance-book-for-data-science-with-julia/31387)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 14\
**Last updated:** [February 11, 2025, 11:12pm UTC](https://discourse.julialang.org/t/suggestion-request-an-advance-book-for-data-science-with-julia/31387 "2025-02-11T23:12:25Z")

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Does anyone has suggestions for a relatively advanced book on Julia focusing on data science, including statistics and numerical computations? I am thinking to books like An Introduction to Statistical Learning for R or P…

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## [SciML to solve compound interest equation](https://discourse.julialang.org/t/sciml-to-solve-compound-interest-equation/106387)

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**Author:** [@Nathan\_Boyer](https://discourse.julialang.org/u/Nathan_Boyer)\
**Replies:** 5\
**Last updated:** [April 7, 2025, 5:15pm UTC](https://discourse.julialang.org/t/sciml-to-solve-compound-interest-equation/106387 "2025-04-07T17:15:17Z")

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I just went through the SciML tutorials and now am trying to apply them by building a calculator for solving the compound interest equation. I have two working implementations, but neither seems very convenient. What is …

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## [Modelling caffeïne effect on alertness in humans with Catalyst](https://discourse.julialang.org/t/modelling-caffeine-effect-on-alertness-in-humans-with-catalyst/127736)

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**Author:** [@modeler32](https://discourse.julialang.org/u/modeler32)\
**Replies:** 4\
**Last updated:** [April 7, 2025, 5:08pm UTC](https://discourse.julialang.org/t/modelling-caffeine-effect-on-alertness-in-humans-with-catalyst/127736 "2025-04-07T17:08:03Z")

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Hi everyone, I am trying to make a reaction network object in Pluto notebook, in which I have to model the effect of caffeine intake on alertness in humans. I’m trying to keep it simple, and this is what I have for now: …

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## [Adding jump to JumpProblem defined from Catalyst model](https://discourse.julialang.org/t/adding-jump-to-jumpproblem-defined-from-catalyst-model/127790)

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**Author:** [@hhindley](https://discourse.julialang.org/u/hhindley)\
**Replies:** 2\
**Last updated:** [April 7, 2025, 4:35pm UTC](https://discourse.julialang.org/t/adding-jump-to-jumpproblem-defined-from-catalyst-model/127790 "2025-04-07T16:35:09Z")

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Hi, Does anyone know if it’s possible to add a newly defined jump to a JumpProblem which is directly defined from a Catalyst.jl model? This is easily done when building a model straight from Jumps, just add another one …

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## [Tasks from Distributed don't release memory](https://discourse.julialang.org/t/tasks-from-distributed-dont-release-memory/127801)

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**Author:** [@alequa](https://discourse.julialang.org/u/alequa)\
**Replies:** 0\
**Last updated:** [April 7, 2025, 2:36pm UTC](https://discourse.julialang.org/t/tasks-from-distributed-dont-release-memory/127801 "2025-04-07T14:36:44Z")

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Hello, I use Julia on a SlurmCluster. I recently encountered several problems with OutOfMemory errors. I run a package for Spiking Neural Network simulations that I co-develop, and in which I have no explicit memory ma…

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## [How to link a Selector to a column of a DataTable](https://discourse.julialang.org/t/how-to-link-a-selector-to-a-column-of-a-datatable/127723)

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**Author:** [@edmund.r](https://discourse.julialang.org/u/edmund.r)\
**Replies:** 4\
**Last updated:** [April 7, 2025, 2:01pm UTC](https://discourse.julialang.org/t/how-to-link-a-selector-to-a-column-of-a-datatable/127723 "2025-04-07T14:01:24Z")

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Hi, I have some JSON of the form j = JSON.parse("""\[{"A":"one", "B":2},{"A":"three","B":4}\]""") I have made a DataTable by dt = DataTable(DataFrame(j)) Next I would like to bind a Selector control to a column. I …

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## [Symbolics + Gröbner basis](https://discourse.julialang.org/t/symbolics-grobner-basis/127706)

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**Author:** [@BLI](https://discourse.julialang.org/u/BLI)\
**Replies:** 24\
**Last updated:** [April 7, 2025, 1:15pm UTC](https://discourse.julialang.org/t/symbolics-grobner-basis/127706 "2025-04-07T13:15:20Z")

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I’m trying to find the roots of some multivariable polynomials with parameters. Just to illustrate the problem, suppose I have 2 equations, say: 0 = x^2y + 2xy - a \\\\ 0 = xy - xy^3 So I try to do the following: using…

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## [LIBSVM call on remote workers requires waiting](https://discourse.julialang.org/t/libsvm-call-on-remote-workers-requires-waiting/127796)

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**Author:** [@alequa](https://discourse.julialang.org/u/alequa)\
**Replies:** 1\
**Last updated:** [April 7, 2025, 1:13pm UTC](https://discourse.julialang.org/t/libsvm-call-on-remote-workers-requires-waiting/127796 "2025-04-07T13:13:46Z")

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Hello, I have been getting a bit crazy on this (now solved) problem. I am running a SVM classification on a remote worker, the LIBSVM is imported under the hood of another module, let’s call it ClassifierModule, so th…

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## [Parsing lens for codim2 bifurcation](https://discourse.julialang.org/t/parsing-lens-for-codim2-bifurcation/127710)

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**Author:** [@iclo3](https://discourse.julialang.org/u/iclo3)\
**Replies:** 6\
**Last updated:** [April 7, 2025, 12:42pm UTC](https://discourse.julialang.org/t/parsing-lens-for-codim2-bifurcation/127710 "2025-04-07T12:42:02Z")

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Hi, I’m trying to perform a codimension2 continuation of a SN point, but I’m runnning into errors with parsing lens. I’ve continued the initial equilibrium solution for parameter A1, found some bifurcation points. Now I …

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## [\[ANN\] PackageMaker - GUI for PkgTemplates](https://discourse.julialang.org/t/ann-packagemaker-gui-for-pkgtemplates/124197)

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**Author:** [@Eben60](https://discourse.julialang.org/u/Eben60)\
**Replies:** 25\
**Last updated:** [April 7, 2025, 12:35pm UTC](https://discourse.julialang.org/t/ann-packagemaker-gui-for-pkgtemplates/124197 "2025-04-07T12:35:41Z")

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Edit: Package registered under the changed name PackageMaker.jl StartYourPk.jl is intended to to help (especially beginner) developers with using projects and creating packages. The package is not yet registered, bu…

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