# Latest

**URL:** https://discourse.julialang.org/latest.md?page=76

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

**Page:** 77

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## [Laplacian regularisation for GLMs](https://discourse.julialang.org/t/laplacian-regularisation-for-glms/134154)

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**Author:** [@grero](https://discourse.julialang.org/u/grero)\
**Replies:** 10\
**Last updated:** [December 4, 2025, 2:59am UTC](https://discourse.julialang.org/t/laplacian-regularisation-for-glms/134154 "2025-12-04T02:59:52Z")

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I would like to use GLM to approximate an integer variable as following a Poisson distribution where the rate parameter is determined by a the independent variable X. X lives in a non-Euclidean space, and so using vanill…

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## [Way to filter out #undef values from list?](https://discourse.julialang.org/t/way-to-filter-out-undef-values-from-list/14872)

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**Author:** [@djsegal](https://discourse.julialang.org/u/djsegal)\
**Replies:** 11\
**Last updated:** [December 4, 2025, 2:59am UTC](https://discourse.julialang.org/t/way-to-filter-out-undef-values-from-list/14872 "2025-12-04T02:59:27Z")

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For example, you have: \> x = Vector(4) 4-element Array{Any,1}: #undef #undef #undef #undef Now if you add some entries, you get: \> x\[2\] = 4 \> x\[4\] = 7 \> x 4-element Array{Any,1}: #undef 4 #undef 7 How…

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## [TypeDBClient.jl Revived for TypeDB 3.4.4 – Native FFI, Streaming, & Rollback Safety](https://discourse.julialang.org/t/typedbclient-jl-revived-for-typedb-3-4-4-native-ffi-streaming-rollback-safety/134217)

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**Author:** [@iamcomcy](https://discourse.julialang.org/u/iamcomcy)\
**Replies:** 4\
**Last updated:** [December 3, 2025, 6:32pm UTC](https://discourse.julialang.org/t/typedbclient-jl-revived-for-typedb-3-4-4-native-ffi-streaming-rollback-safety/134217 "2025-12-03T18:32:51Z")

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\[ANN\] TypeDBClient.jl – Revived for TypeDB 3.4.4 Community Edition After a long hiatus, I’m excited to announce TypeDBClient.jl – a lightweight, type-safe Julia client for TypeDB (formerly Grakn), the polymorphic graph d…

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## [Performance vs # of Alloc Unintuitive behavior](https://discourse.julialang.org/t/performance-vs-of-alloc-unintuitive-behavior/134325)

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**Author:** [@Eventine](https://discourse.julialang.org/u/Eventine)\
**Replies:** 11\
**Last updated:** [December 3, 2025, 6:10pm UTC](https://discourse.julialang.org/t/performance-vs-of-alloc-unintuitive-behavior/134325 "2025-12-03T18:10:26Z")

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Hi, new to Julia here. I needed to develop a tool (mainly 200x200 vectors and matrices operations). I wrote a very messy code at start. It had tons of allocations. Measures with @btime performance (I pre-launched everyt…

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## [Interpolate over large HDF5 arrays](https://discourse.julialang.org/t/interpolate-over-large-hdf5-arrays/127079)

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**Author:** [@henry2004y](https://discourse.julialang.org/u/henry2004y)\
**Replies:** 18\
**Last updated:** [December 3, 2025, 5:52pm UTC](https://discourse.julialang.org/t/interpolate-over-large-hdf5-arrays/127079 "2025-12-03T17:52:48Z")

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Hi, I have a extremely large standard HDF5 file (2 TB) which saves a 3D array, let’s say B. With HDF5.jl, I can access individual elements of the array in the same way as this thread shows: load-hdf5-file-larger-than-me…

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## [Julia crashes when importing PyPlot](https://discourse.julialang.org/t/julia-crashes-when-importing-pyplot/134122)

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**Author:** [@Geometh](https://discourse.julialang.org/u/Geometh)\
**Replies:** 14\
**Last updated:** [December 3, 2025, 5:34pm UTC](https://discourse.julialang.org/t/julia-crashes-when-importing-pyplot/134122 "2025-12-03T17:34:24Z")

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Hi everyone, I decided to give my MacBookPro (13’’ 2019 Intel) a factory reset and now have a nice and clean set-up. Everything works fine, except importing PyPlot in Julia. Unfortunately, I don’t get any error message …

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## [Failing to obtain a bifurcation plot](https://discourse.julialang.org/t/failing-to-obtain-a-bifurcation-plot/134330)

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**Author:** [@vembha](https://discourse.julialang.org/u/vembha)\
**Replies:** 0\
**Last updated:** [December 3, 2025, 3:47pm UTC](https://discourse.julialang.org/t/failing-to-obtain-a-bifurcation-plot/134330 "2025-12-03T15:47:51Z")

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Hello everyone, A long-time user of Julia/SciML. I have a system of ODEs and have been trying to obtain a bifurcation diagram using BifurcationKit.jl and ModelingToolkit.jl. While I am able to successfully obtain one br…

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## [Minor versions publications scheme?](https://discourse.julialang.org/t/minor-versions-publications-scheme/134328)

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**Author:** [@lrnv](https://discourse.julialang.org/u/lrnv)\
**Replies:** 2\
**Last updated:** [December 3, 2025, 2:41pm UTC](https://discourse.julialang.org/t/minor-versions-publications-scheme/134328 "2025-12-03T14:41:03Z")

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Hey, I thought that 1.10 being LTS, minor updates to 1.11 would have stopped at 1.12.0 release. But it does not look like it is the case.. is there somewhere a document that explains this ? For example, I see announcem…

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## [How to test that a testset fails expectedly?](https://discourse.julialang.org/t/how-to-test-that-a-testset-fails-expectedly/134259)

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**Author:** [@jules](https://discourse.julialang.org/u/jules)\
**Replies:** 5\
**Last updated:** [December 3, 2025, 12:22pm UTC](https://discourse.julialang.org/t/how-to-test-that-a-testset-fails-expectedly/134259 "2025-12-03T12:22:03Z")

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Let’s say I have a package that defines a test macro. The macro creates some code that runs a @testset and inside a couple @tests. If I want to test that the macro works, I have to test that it succeeds if the conditions…

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## [Why is v1.12 "more prone to invalidations"?](https://discourse.julialang.org/t/why-is-v1-12-more-prone-to-invalidations/134327)

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**Author:** [@mattsignorelli](https://discourse.julialang.org/u/mattsignorelli)\
**Replies:** 0\
**Last updated:** [December 3, 2025, 12:15pm UTC](https://discourse.julialang.org/t/why-is-v1-12-more-prone-to-invalidations/134327 "2025-12-03T12:15:43Z")

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When v1.12.0 was first released some time ago, my precompile script immediately stopped being effective, even though my code was unchanged. In particular, it was ineffective if IJulia.jl was also loaded. The full details…

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## [Flux newbie: simple Markov](https://discourse.julialang.org/t/flux-newbie-simple-markov/134073)

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**Author:** [@Anders\_Holtsberg](https://discourse.julialang.org/u/Anders_Holtsberg)\
**Replies:** 5\
**Last updated:** [December 3, 2025, 8:30am UTC](https://discourse.julialang.org/t/flux-newbie-simple-markov/134073 "2025-12-03T08:30:32Z")

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Note: Flux newbie here. I am trying to learn Flux with the goal in the end to experiment with different GRU-like models, oneHot to oneHot with crossentropy, background is NLP. I started learning Flux by trying to set …

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## [How to evaluate a function y = f(x) for x in Interval defined by Domainset?](https://discourse.julialang.org/t/how-to-evaluate-a-function-y-f-x-for-x-in-interval-defined-by-domainset/134300)

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**Author:** [@ziolai](https://discourse.julialang.org/u/ziolai)\
**Replies:** 4\
**Last updated:** [December 3, 2025, 7:57am UTC](https://discourse.julialang.org/t/how-to-evaluate-a-function-y-f-x-for-x-in-interval-defined-by-domainset/134300 "2025-12-03T07:57:21Z")

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How to evaluate a function y = f(x) for x in an interval defined by IntervalSets.jl ? using DomainSets I = Interval(0,1.) foo(x) = x^2 How to \[foo(x) for x ∈ I\] or map(foo,I) ?

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## [Policy Graph in SDDP.jl package](https://discourse.julialang.org/t/policy-graph-in-sddp-jl-package/100062)

<div class="topic-metadata">

**Author:** [@Sorooshsa](https://discourse.julialang.org/u/Sorooshsa)\
**Replies:** 3\
**Last updated:** [December 3, 2025, 4:59am UTC](https://discourse.julialang.org/t/policy-graph-in-sddp-jl-package/100062 "2025-12-03T04:59:08Z")

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Hi, I know that there are a few options for making the graph of our problem while we use SDDP.jl e.g. linear policy graph, Markov policy graph. I have two questions: What is the difference between the Linear and Mark…

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## [Features of FMUGeneration](https://discourse.julialang.org/t/features-of-fmugeneration/132812)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 11\
**Last updated:** [December 3, 2025, 4:54am UTC](https://discourse.julialang.org/t/features-of-fmugeneration/132812 "2025-12-03T04:54:05Z")

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The package FMUGeneration works for me now (see here). Follow-up questions: Is an FMU file always OS specific? Do I need three of them if I want to support Windows, Mac, and Linux? Does the user of an FMU need to have …

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## [HTTP has stopped working on api.eia.gov](https://discourse.julialang.org/t/http-has-stopped-working-on-api-eia-gov/134266)

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**Author:** [@wshobe](https://discourse.julialang.org/u/wshobe)\
**Replies:** 13\
**Last updated:** [December 3, 2025, 4:51am UTC](https://discourse.julialang.org/t/http-has-stopped-working-on-api-eia-gov/134266 "2025-12-03T04:51:23Z")

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All of a sudden, HTTP has stopped working to retrieve data from the api.eia.gov website. I have included a simple call that works in R and used to work in Julia but now times out no matter how much time I give it. In R, …

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## [Using \`CartesianIndex\` with Flux.jl](https://discourse.julialang.org/t/using-cartesianindex-with-flux-jl/134279)

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**Author:** [@Chrysoberyl](https://discourse.julialang.org/u/Chrysoberyl)\
**Replies:** 3\
**Last updated:** [December 3, 2025, 3:49am UTC](https://discourse.julialang.org/t/using-cartesianindex-with-flux-jl/134279 "2025-12-03T03:49:15Z")

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Is it possible to use CartesianIndex with Flux.jl within a Flux.with\_gradient block? Specifically I have a::Vector{Float32} and b::Vector{CartesianIndex}, and a\[b\] is in the gradient block. When I used this I got ERROR…

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## [How to define subcommands for a \`@main\` command in a Julia app?](https://discourse.julialang.org/t/how-to-define-subcommands-for-a-main-command-in-a-julia-app/134153)

<div class="topic-metadata">

**Author:** [@singularitti](https://discourse.julialang.org/u/singularitti)\
**Replies:** 6\
**Last updated:** [December 2, 2025, 9:35pm UTC](https://discourse.julialang.org/t/how-to-define-subcommands-for-a-main-command-in-a-julia-app/134153 "2025-12-02T21:35:59Z")

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Since Julia now allows us to install an app/command to call it from the Shell by the @main function, I wonder how to mimic cases like some commands having subcommands in @main? Like git add, git status, git clone for git.…

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## [Makie scatter plot update issues](https://discourse.julialang.org/t/makie-scatter-plot-update-issues/134284)

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**Author:** [@Barabule](https://discourse.julialang.org/u/Barabule)\
**Replies:** 2\
**Last updated:** [December 2, 2025, 9:25pm UTC](https://discourse.julialang.org/t/makie-scatter-plot-update-issues/134284 "2025-12-02T21:25:42Z")

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Hi, I’m trying to make a GLMakie GUI with a draggable scatter plot. The dragging part works OK (it updated the positions), but when modifying the number of points plotted, the scatter plot only shows the initial number …

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## [RepliBuild.jl](https://discourse.julialang.org/t/replibuild-jl/134065)

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**Author:** [@obsidianjulua](https://discourse.julialang.org/u/obsidianjulua)\
**Replies:** 10\
**Last updated:** [December 2, 2025, 7:34pm UTC](https://discourse.julialang.org/t/replibuild-jl/134065 "2025-12-02T19:34:10Z")

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Been working on a julia build orchestrator, using llvm directly and clang for deps graphs and configuring to a toml, generating executables, shared libraries, or binary wrapping in julia, without the traditional hand cod…

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## [Looking for a fully remote Julia job opportunity](https://discourse.julialang.org/t/looking-for-a-fully-remote-julia-job-opportunity/134304)

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**Author:** [@samo76](https://discourse.julialang.org/u/samo76)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 7:11pm UTC](https://discourse.julialang.org/t/looking-for-a-fully-remote-julia-job-opportunity/134304 "2025-12-02T19:11:50Z")

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Hi all! I am currently working as a full-time communications engineer in a major multi-national cellular company on layer 1 systems and simulations in Julia. Due to some changes in life circumstances, I am seeking a more…

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## [How does Julia invoke constructors with overlapping constraints](https://discourse.julialang.org/t/how-does-julia-invoke-constructors-with-overlapping-constraints/134243)

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**Author:** [@RCh](https://discourse.julialang.org/u/RCh)\
**Replies:** 8\
**Last updated:** [December 2, 2025, 6:53pm UTC](https://discourse.julialang.org/t/how-does-julia-invoke-constructors-with-overlapping-constraints/134243 "2025-12-02T18:53:46Z")

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Hello, I am playing with constructors, but seems, that Julia allows to have constructor with overlapping constrains N. using StaticArrays: SizedVector mutable struct Context{TYPE\_VAR\_STACK \<: Union{UInt8, UInt16}, N \<:…

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## [Tenure track in Data Science / Statistics / AI, at UCF (University of Central Florida)](https://discourse.julialang.org/t/tenure-track-in-data-science-statistics-ai-at-ucf-university-of-central-florida/134302)

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**Author:** [@mantzaris](https://discourse.julialang.org/u/mantzaris)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 6:31pm UTC](https://discourse.julialang.org/t/tenure-track-in-data-science-statistics-ai-at-ucf-university-of-central-florida/134302 "2025-12-02T18:31:40Z")

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An academic position in Data Science / Statistics / AI, at UCF (University of Central Florida) which is a tenure track position is opening looking for applicants:

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## [Julia v1.12.3 testing period](https://discourse.julialang.org/t/julia-v1-12-3-testing-period/134298)

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**Author:** [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 4:13pm UTC](https://discourse.julialang.org/t/julia-v1-12-3-testing-period/134298 "2025-12-02T16:13:45Z")

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The release-1.12 branch on the Julia repository now contains the set of commits we’re planning to tag as v1.12.3. The list of commits included since v1.12.3 is available here. As a patch release, it should be non-breakin…

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## [Setting up corporate network proxy (with username and password)](https://discourse.julialang.org/t/setting-up-corporate-network-proxy-with-username-and-password/108903)

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**Author:** [@mobius-eng](https://discourse.julialang.org/u/mobius-eng)\
**Replies:** 2\
**Last updated:** [December 2, 2025, 3:23pm UTC](https://discourse.julialang.org/t/setting-up-corporate-network-proxy-with-username-and-password/108903 "2025-12-02T15:23:55Z")

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I am trying to set proxy settings for Julia to use, but without much success (I am behind corporate firewall). System: Windows 10, Julia 1.10 The proxy is set in the form http://\<User\>@\<Password\>@\<Addresss\>:\<Port\> (thi…

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## [What is the most ideal predictor for predicting binary vectors?](https://discourse.julialang.org/t/what-is-the-most-ideal-predictor-for-predicting-binary-vectors/134260)

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**Author:** [@WuSiren](https://discourse.julialang.org/u/WuSiren)\
**Replies:** 6\
**Last updated:** [December 2, 2025, 3:13pm UTC](https://discourse.julialang.org/t/what-is-the-most-ideal-predictor-for-predicting-binary-vectors/134260 "2025-12-02T15:13:59Z")

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I want to predict a vector whose elements are binary. What is the most promising machine learning model for doing this at present? Is there a corresponding Julia package?

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## [UndefVarError: \`Grid\` not defined in \`Main\`](https://discourse.julialang.org/t/undefvarerror-grid-not-defined-in-main/134290)

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**Author:** [@mshafiquehu](https://discourse.julialang.org/u/mshafiquehu)\
**Replies:** 3\
**Last updated:** [December 2, 2025, 3:04pm UTC](https://discourse.julialang.org/t/undefvarerror-grid-not-defined-in-main/134290 "2025-12-02T15:04:02Z")

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UndefVarError: Grid not defined in Main I want to figured out this error, and I have also define my Grid in main but still got the error.

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## [Testing and tolerances for implicitly calculated functions and their AD](https://discourse.julialang.org/t/testing-and-tolerances-for-implicitly-calculated-functions-and-their-ad/133575)

<div class="topic-metadata">

**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 3\
**Last updated:** [December 2, 2025, 12:49pm UTC](https://discourse.julialang.org/t/testing-and-tolerances-for-implicitly-calculated-functions-and-their-ad/133575 "2025-12-02T12:49:17Z")

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To fix ideas, suppose we have a function x = g(p) defined by f(x(p), p) = 0, both arguments are scalars. The numerical implementation involves finding an x such that | f(x, p)| \\le \\mathrm{tol}, either by Newton’s metho…

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## [Modeling min() in JuMP at scale: SOS1 stops converging, Big-M is numerically unstable](https://discourse.julialang.org/t/modeling-min-in-jump-at-scale-sos1-stops-converging-big-m-is-numerically-unstable/134251)

<div class="topic-metadata">

**Author:** [@Bhanuprakash\_Bahoju](https://discourse.julialang.org/u/Bhanuprakash_Bahoju)\
**Replies:** 11\
**Last updated:** [December 2, 2025, 11:13am UTC](https://discourse.julialang.org/t/modeling-min-in-jump-at-scale-sos1-stops-converging-big-m-is-numerically-unstable/134251 "2025-12-02T11:13:52Z")

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I’m implementing a formula engine in JuMP where users can define expressions like: z = min(x, y) and I translate these automatically into JuMP constraints. I have tried two formulations: 1. SOS1 formulation function…

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## [\[ANN\] FluxOptics.jl - Inverse optical design with automatic differentiation](https://discourse.julialang.org/t/ann-fluxoptics-jl-inverse-optical-design-with-automatic-differentiation/134285)

<div class="topic-metadata">

**Author:** [@anscoil](https://discourse.julialang.org/u/anscoil)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 10:54am UTC](https://discourse.julialang.org/t/ann-fluxoptics-jl-inverse-optical-design-with-automatic-differentiation/134285 "2025-12-02T10:54:48Z")

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Hi, I developed FluxOptics.jl, a package for differentiable optical field propagation. It is now registered and I would appreciate any feedback from the community. The name draws inspiration from Flux.jl: optical compo…

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## [Makie inspector labels don't work with rich text](https://discourse.julialang.org/t/makie-inspector-labels-dont-work-with-rich-text/134274)

<div class="topic-metadata">

**Author:** [@AUK1939](https://discourse.julialang.org/u/AUK1939)\
**Replies:** 2\
**Last updated:** [December 2, 2025, 10:28am UTC](https://discourse.julialang.org/t/makie-inspector-labels-dont-work-with-rich-text/134274 "2025-12-02T10:28:48Z")

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The code below plots a simple bar chart. If I pass custom\_inspector\_label\_plain to barchart! everything works fine. But on GLMakie version v0.13.7 using rich text for inspector labels fails, see custom\_inspector\_label\_ri…

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