# Latest

**URL:** https://discourse.julialang.org/latest.md?page=233

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

**Page:** 234

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## [Package for Mixed Discrete Continuous Joint Distributions](https://discourse.julialang.org/t/package-for-mixed-discrete-continuous-joint-distributions/125048)

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**Author:** [@bmit](https://discourse.julialang.org/u/bmit)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 9:47pm UTC](https://discourse.julialang.org/t/package-for-mixed-discrete-continuous-joint-distributions/125048 "2025-01-21T21:47:01Z")

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I’m looking for a package that implements tools for working with mixed multivariate discrete continuous joint distributions. A simple wikipedia definition of this can be found at https://en.wikipedia.org/wiki/Joint\_proba…

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## [Basic: Documenter.jl pages open a local folder](https://discourse.julialang.org/t/basic-documenter-jl-pages-open-a-local-folder/125016)

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**Author:** [@acroscarrillo](https://discourse.julialang.org/u/acroscarrillo)\
**Replies:** 2\
**Last updated:** [January 21, 2025, 9:42pm UTC](https://discourse.julialang.org/t/basic-documenter-jl-pages-open-a-local-folder/125016 "2025-01-21T21:42:45Z")

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Hi its me again! Context: I have finally a minimal documentation running: Now I am trying to mimic in exp.jl the lovely documentation of Attractors.jl, in particular the very nice Attractors.jl Tutorial as suggeste…

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## [Community Values in Chinese Julia Communities](https://discourse.julialang.org/t/community-values-in-chinese-julia-communities/125033)

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**Author:** [@Andy\_Zhang](https://discourse.julialang.org/u/Andy_Zhang)\
**Replies:** 7\
**Last updated:** [January 21, 2025, 8:01pm UTC](https://discourse.julialang.org/t/community-values-in-chinese-julia-communities/125033 "2025-01-21T20:01:06Z")

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Recently, I encountered an issue in a Julia community where a member shared an e-book without proper authorization from the author. When I and other members expressed concern about this apparent violation of copyright, t…

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## [Makie - \`\]test Makie\` 1 test stuck?](https://discourse.julialang.org/t/makie-test-makie-1-test-stuck/125038)

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**Author:** [@p\_f](https://discourse.julialang.org/u/p_f)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 6:49pm UTC](https://discourse.julialang.org/t/makie-test-makie-1-test-stuck/125038 "2025-01-21T18:49:40Z")

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Hi, I’ve attempted to fix a bug in Makie, and am attempting to run the tests. I’ve got an environment with Makie, GLMakie, CairoMakie and ReferenceTests all dev’d. I then typed \]test Makie. tests never finished, so I c…

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## [Posters at JuliaCon 2025](https://discourse.julialang.org/t/posters-at-juliacon-2025/125032)

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**Author:** [@ranjan](https://discourse.julialang.org/u/ranjan)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 5:42pm UTC](https://discourse.julialang.org/t/posters-at-juliacon-2025/125032 "2025-01-21T17:42:47Z")

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Hello all, I just wanted to call your attention to what content qualifies for a poster at JuliaCon 2025. In particular we encourage all package maintainers to submit a poster about their package, especially if you feel …

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## [Solver and AD advice for nonlinear LS problem](https://discourse.julialang.org/t/solver-and-ad-advice-for-nonlinear-ls-problem/125014)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 5\
**Last updated:** [January 21, 2025, 5:26pm UTC](https://discourse.julialang.org/t/solver-and-ad-advice-for-nonlinear-ls-problem/125014 "2025-01-21T17:26:51Z")

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(This is a vague open-ended question for which I cannot provide an MWE.) I have a nonlinear least squares problem \\min\_x \\| f(x) \\|\_2^2 where x \\in \\mathbb{R}^N, N \\approx 20...40, and f(x) has about 100–200 elements…

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## [Abysmal performance when reading block of data from disk with Julia](https://discourse.julialang.org/t/abysmal-performance-when-reading-block-of-data-from-disk-with-julia/124988)

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**Author:** [@world-peace](https://discourse.julialang.org/u/world-peace)\
**Replies:** 15\
**Last updated:** [January 21, 2025, 4:13pm UTC](https://discourse.julialang.org/t/abysmal-performance-when-reading-block-of-data-from-disk-with-julia/124988 "2025-01-21T16:13:49Z")

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See the code below. const count = 10000 function create() v = rand(Int64, count) open("data.bin", "w") do ofile write(ofile, v) end end function test() open("data.bin") do ifile v = Vec…

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## [Link a username without notifying them?](https://discourse.julialang.org/t/link-a-username-without-notifying-them/125024)

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**Author:** [@Nathan\_Boyer](https://discourse.julialang.org/u/Nathan_Boyer)\
**Replies:** 6\
**Last updated:** [January 21, 2025, 3:55pm UTC](https://discourse.julialang.org/t/link-a-username-without-notifying-them/125024 "2025-01-21T15:55:54Z")

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On Discourse, is there a method to link to a username like @username but without tagging them? I often want to refer to a user without pinging their inbox (example), usually giving credit to previous replies when restati…

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## [Call for Proposals: Climate Science & Solutions Mini-Symposium at JuliaCon 2025](https://discourse.julialang.org/t/call-for-proposals-climate-science-solutions-mini-symposium-at-juliacon-2025/125026)

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**Author:** [@sgering](https://discourse.julialang.org/u/sgering)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 3:55pm UTC](https://discourse.julialang.org/t/call-for-proposals-climate-science-solutions-mini-symposium-at-juliacon-2025/125026 "2025-01-21T15:55:29Z")

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Climate Science and Solutions with Julia Interested in climate science or geospatial techniques in Julia? Speak at our JuliaCon minisymposium on climate science in Julia! Talks are encouraged to discuss both innovative m…

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## [Use Makie + LibGEOS](https://discourse.julialang.org/t/use-makie-libgeos/88420)

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**Author:** [@jw3126](https://discourse.julialang.org/u/jw3126)\
**Replies:** 3\
**Last updated:** [January 21, 2025, 2:51pm UTC](https://discourse.julialang.org/t/use-makie-libgeos/88420 "2025-01-21T14:51:14Z")

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There is GeoInterfaceRecipes which allows to use LibGEOS along with Plots.jl. Is there a similar package for combining LibGEOS with Makie?

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## [Exporting a julia library on iOS and Android](https://discourse.julialang.org/t/exporting-a-julia-library-on-ios-and-android/124975)

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**Author:** [@Alfespo97](https://discourse.julialang.org/u/Alfespo97)\
**Replies:** 4\
**Last updated:** [January 21, 2025, 2:36pm UTC](https://discourse.julialang.org/t/exporting-a-julia-library-on-ios-and-android/124975 "2025-01-21T14:36:26Z")

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Hi everyone, i’ve been using Julia for 2/3 months and i’ve created an optimization function with Ipopt to solve a non-linear problem. Now i want to export this function to a library to make it execute on smartphone with …

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## [How does Julia manage its depot \`~/.julia\`?](https://discourse.julialang.org/t/how-does-julia-manage-its-depot-julia/125015)

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**Author:** [@WuSiren](https://discourse.julialang.org/u/WuSiren)\
**Replies:** 3\
**Last updated:** [January 21, 2025, 2:04pm UTC](https://discourse.julialang.org/t/how-does-julia-manage-its-depot-julia/125015 "2025-01-21T14:04:49Z")

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It seems that Julia will download all the used packages and corresponding dependencies into its default depot ~/.julia which is usually located in the disk C: of a PC. Will this behavior lead to a dramatic expansion of t…

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## [Isolating a test case from JET.@report\_opt](https://discourse.julialang.org/t/isolating-a-test-case-from-jet-report-opt/125018)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 1:38pm UTC](https://discourse.julialang.org/t/isolating-a-test-case-from-jet-report-opt/125018 "2025-01-21T13:38:35Z")

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I am trying to find a type instability using JET.jl. The top-level code is inferred, but JET.@report\_opt reports a couple of instabilities that do not appear to affect the final type, yet cause allocations and runtime di…

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## [Package or environment: What to recommend to new users?](https://discourse.julialang.org/t/package-or-environment-what-to-recommend-to-new-users/125017)

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**Author:** [@Eben60](https://discourse.julialang.org/u/Eben60)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 1:14pm UTC](https://discourse.julialang.org/t/package-or-environment-what-to-recommend-to-new-users/125017 "2025-01-21T13:14:06Z")

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I once put this question in the announcement post of PackageMaker.jl, but didn’t get much feedback on this point. May I try another attempt, now in a separate topic? The reason: In the (coming) documentation for the Pa…

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## [Documenter.jl help for first time user](https://discourse.julialang.org/t/documenter-jl-help-for-first-time-user/124966)

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**Author:** [@acroscarrillo](https://discourse.julialang.org/u/acroscarrillo)\
**Replies:** 10\
**Last updated:** [January 21, 2025, 12:18pm UTC](https://discourse.julialang.org/t/documenter-jl-help-for-first-time-user/124966 "2025-01-21T12:18:48Z")

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I am following the official Documenter.jl’s Guide and I am running into problems. To give some context: I have a numerical “library” I made for my research I want to make public with Documenter.jl using GitHub. It is …

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## [Changing the relstep of AutoFiniteDiff() in an OptimizationFunction](https://discourse.julialang.org/t/changing-the-relstep-of-autofinitediff-in-an-optimizationfunction/125004)

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**Author:** [@Bart\_van\_de\_Lint](https://discourse.julialang.org/u/Bart_van_de_Lint)\
**Replies:** 5\
**Last updated:** [January 21, 2025, 11:19am UTC](https://discourse.julialang.org/t/changing-the-relstep-of-autofinitediff-in-an-optimizationfunction/125004 "2025-01-21T11:19:58Z")

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I want to define an OptimizationProblem using Optimization.jl and FiniteDiff: optf = OptimizationFunction(f\_zero, AutoFiniteDiff()) prob = OptimizationProblem(optf, \[stretched\_tether\_length - 0.05, 0.0, 0.0, 0.0…

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## [Errors in Discretization in ModelingToolkit.jl](https://discourse.julialang.org/t/errors-in-discretization-in-modelingtoolkit-jl/124403)

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**Author:** [@JustPickedThisUp](https://discourse.julialang.org/u/JustPickedThisUp)\
**Replies:** 5\
**Last updated:** [January 21, 2025, 10:25am UTC](https://discourse.julialang.org/t/errors-in-discretization-in-modelingtoolkit-jl/124403 "2025-01-21T10:25:17Z")

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Hello, I’ve been trying to solve this time dependent Schrodingers equation with these conditions: It keeps throwing up errors like AssertionError: There must be the same number of equations and unknowns, got 2 equat…

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## [Too large space to save figure](https://discourse.julialang.org/t/too-large-space-to-save-figure/125007)

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**Author:** [@khaledharizb](https://discourse.julialang.org/u/khaledharizb)\
**Replies:** 0\
**Last updated:** [January 21, 2025, 10:04am UTC](https://discourse.julialang.org/t/too-large-space-to-save-figure/125007 "2025-01-21T10:04:36Z")

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I would like to save a picture using the following code, however too large space appears. using Plots I1=2/3;I2=1;I3=2; plot(legend=false,grid=false,axis=false,aspect\_ratio=:equal,size=(700,700),camera=(-50,32),widen=tr…

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## [Help with continuation using BifurcationKit.jl](https://discourse.julialang.org/t/help-with-continuation-using-bifurcationkit-jl/124965)

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**Author:** [@iclo3](https://discourse.julialang.org/u/iclo3)\
**Replies:** 4\
**Last updated:** [January 21, 2025, 9:15am UTC](https://discourse.julialang.org/t/help-with-continuation-using-bifurcationkit-jl/124965 "2025-01-21T09:15:49Z")

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Hello all, Relatively new to BifurcationKit (I have used other continuation software in the past). I’ve been able to get a 2D system (quite similar to the 3D system I’m having trouble with) to work, so any help or advic…

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## [External API calls during module \_\_init\_\_. Terrible idea or fine?](https://discourse.julialang.org/t/external-api-calls-during-module-init-terrible-idea-or-fine/124998)

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**Author:** [@Amval](https://discourse.julialang.org/u/Amval)\
**Replies:** 2\
**Last updated:** [January 21, 2025, 8:58am UTC](https://discourse.julialang.org/t/external-api-calls-during-module-init-terrible-idea-or-fine/124998 "2025-01-21T08:58:56Z")

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Hello everyone, I have the following module: module SideEffects function \_\_init\_\_() # load\_or\_fetch! does an API call to a service to retrieve a list # OR deserialises an object, if the call has already been done gl…

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## [Control on density plot marker shape and color](https://discourse.julialang.org/t/control-on-density-plot-marker-shape-and-color/124846)

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**Author:** [@Nick1](https://discourse.julialang.org/u/Nick1)\
**Replies:** 3\
**Last updated:** [January 21, 2025, 7:12am UTC](https://discourse.julialang.org/t/control-on-density-plot-marker-shape-and-color/124846 "2025-01-21T07:12:47Z")

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I am trying to plot different probability densities on the same plot from a data frame, based on a group. However, there is an overlap on the lines and I need to use different marker shapes and colors for better visibili…

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## [Creating Constraints Quickly](https://discourse.julialang.org/t/creating-constraints-quickly/124947)

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**Author:** [@cs1231](https://discourse.julialang.org/u/cs1231)\
**Replies:** 1\
**Last updated:** [January 21, 2025, 7:03am UTC](https://discourse.julialang.org/t/creating-constraints-quickly/124947 "2025-01-21T07:03:34Z")

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I have been using Mathematica with my optimisation problem and am now keen to try the optimisation tools in Julia (SDDP in particular). Am new Julia so plz bear with me. In my optimisation problem, my constraints are ac…

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## [Julia package versioning is a real nightmare to me. What am I doing wrong?](https://discourse.julialang.org/t/julia-package-versioning-is-a-real-nightmare-to-me-what-am-i-doing-wrong/124982)

<div class="topic-metadata">

**Author:** [@tb877](https://discourse.julialang.org/u/tb877)\
**Replies:** 17\
**Last updated:** [January 21, 2025, 4:26am UTC](https://discourse.julialang.org/t/julia-package-versioning-is-a-real-nightmare-to-me-what-am-i-doing-wrong/124982 "2025-01-21T04:26:26Z")

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Background: I’m developing some code on my macbook in the Julia release channel (1.11.2) and also using my university’s HPC which runs Julia 1.10.2. I’m running all the time into this kind of problem during development.…

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## [Binaries made by PackageCompiler.jl hangs while maxing out RAM](https://discourse.julialang.org/t/binaries-made-by-packagecompiler-jl-hangs-while-maxing-out-ram/123557)

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**Author:** [@pxshen](https://discourse.julialang.org/u/pxshen)\
**Replies:** 12\
**Last updated:** [January 21, 2025, 3:32am UTC](https://discourse.julialang.org/t/binaries-made-by-packagecompiler-jl-hangs-while-maxing-out-ram/123557 "2025-01-21T03:32:16Z")

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Linux binaries (WSL Ubuntu) made by PackageCompiler.jl hangs (\>1hr) while maxing out RAM. Windows binaries work though. How to debug?

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## [Redefine Struct when working with REPL](https://discourse.julialang.org/t/redefine-struct-when-working-with-repl/25942)

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**Author:** [@LudiWin](https://discourse.julialang.org/u/LudiWin)\
**Replies:** 10\
**Last updated:** [January 21, 2025, 2:03am UTC](https://discourse.julialang.org/t/redefine-struct-when-working-with-repl/25942 "2025-01-21T02:03:06Z")

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Hi, I would like to use structs to bundle values in a way similar to pure OOP. So I would create a struct to encapsulate the relevant attributes. Down below is an example: struct Lion maneColor::String roar::…

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## [Band filled by vertical gradient in Makie.jl](https://discourse.julialang.org/t/band-filled-by-vertical-gradient-in-makie-jl/124987)

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**Author:** [@albertomercurio](https://discourse.julialang.org/u/albertomercurio)\
**Replies:** 4\
**Last updated:** [January 20, 2025, 10:43pm UTC](https://discourse.julialang.org/t/band-filled-by-vertical-gradient-in-makie-jl/124987 "2025-01-20T22:43:55Z")

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Hello, I would like to make a band filled by a vertical gradient using CairoMakie.jl. The result should be similar to this example. How can I do it in a clear way using CairoMakie.jl?

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## [My Topics icon missing in Julia Discourse](https://discourse.julialang.org/t/my-topics-icon-missing-in-julia-discourse/124925)

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**Author:** [@raman\_kumar](https://discourse.julialang.org/u/raman_kumar)\
**Replies:** 5\
**Last updated:** [January 20, 2025, 8:09pm UTC](https://discourse.julialang.org/t/my-topics-icon-missing-in-julia-discourse/124925 "2025-01-20T20:09:45Z")

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I want to see topics that i created much early. I think there used to be My topics icon :upside\_down\_face: in Julia Discourse. How to retrieve it?

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## [Why does Julia threads in the following way?](https://discourse.julialang.org/t/why-does-julia-threads-in-the-following-way/124953)

<div class="topic-metadata">

**Author:** [@ttx002000](https://discourse.julialang.org/u/ttx002000)\
**Replies:** 6\
**Last updated:** [January 20, 2025, 7:29pm UTC](https://discourse.julialang.org/t/why-does-julia-threads-in-the-following-way/124953 "2025-01-20T19:29:20Z")

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Here is a working example. There are two functions, the Coulomb\_matrix() function just takes in a vector of Float numbers, and gives out a matrix of float numbers. The test() is having strange behaviour. Here is the full…

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## [Accessing current time-point inside Differential Equation function while solving](https://discourse.julialang.org/t/accessing-current-time-point-inside-differential-equation-function-while-solving/124876)

<div class="topic-metadata">

**Author:** [@Sahil\_Khan](https://discourse.julialang.org/u/Sahil_Khan)\
**Replies:** 9\
**Last updated:** [January 20, 2025, 6:32pm UTC](https://discourse.julialang.org/t/accessing-current-time-point-inside-differential-equation-function-while-solving/124876 "2025-01-20T18:32:28Z")

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Hello everyone, In function shown below I have a vector named vf that I want to access at some specific timepoint in my function tmp!(). so something like this - time vf access 1. 0.001 2. 0.002…

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## [Cant add or create new column for my data csv](https://discourse.julialang.org/t/cant-add-or-create-new-column-for-my-data-csv/124923)

<div class="topic-metadata">

**Author:** [@522Hendriadi\_DN](https://discourse.julialang.org/u/522Hendriadi_DN)\
**Replies:** 1\
**Last updated:** [January 20, 2025, 5:12pm UTC](https://discourse.julialang.org/t/cant-add-or-create-new-column-for-my-data-csv/124923 "2025-01-20T17:12:56Z")

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hello everyone, im newbie in julia. i need help for my problem. I just to try using PyCall in my code. this is my code: using Pandas using Dates @pyimport re py""" import pandas as pd df = pd.read\_csv(" my path tweets.…

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