# Latest

**URL:** https://discourse.julialang.org/latest.md?page=259

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

**Page:** 260

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## [Solving a PDE but no plots are returned](https://discourse.julialang.org/t/solving-a-pde-but-no-plots-are-returned/123493)

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**Author:** [@Jax\_Xu](https://discourse.julialang.org/u/Jax_Xu)\
**Replies:** 9\
**Last updated:** [December 7, 2024, 2:44am UTC](https://discourse.julialang.org/t/solving-a-pde-but-no-plots-are-returned/123493 "2024-12-07T02:44:45Z")

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Hi Community! I am practicing solving a basic one-dimensional diffusion equation in Julia and hoping to get familiar with Julia asap. I fixed up the local scope parameters by using ‘global’ to define ‘u’ and ‘b’ in my l…

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## [How to write an \`include\_once\` function?](https://discourse.julialang.org/t/how-to-write-an-include-once-function/123496)

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**Author:** [@world-peace](https://discourse.julialang.org/u/world-peace)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 11:26pm UTC](https://discourse.julialang.org/t/how-to-write-an-include-once-function/123496 "2024-12-06T23:26:15Z")

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Closely related to this recent post: Using or import search current directory? Is it possible to write an include\_once function, which calls include, but only once. function include\_once(path) if not run before …

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## [Parameter inference problem with matrix inversions](https://discourse.julialang.org/t/parameter-inference-problem-with-matrix-inversions/123543)

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**Author:** [@tom-plaa](https://discourse.julialang.org/u/tom-plaa)\
**Replies:** 8\
**Last updated:** [December 6, 2024, 9:23pm UTC](https://discourse.julialang.org/t/parameter-inference-problem-with-matrix-inversions/123543 "2024-12-06T21:23:36Z")

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TLDR: I have a parameter inference problem that involves inferring a matrix of a linear system but I am having trouble with either avoiding the trivial solution (matrix = all zeros) or getting usable results. I have a s…

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## [Vehical routing problem with time windows](https://discourse.julialang.org/t/vehical-routing-problem-with-time-windows/123550)

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**Author:** [@aditya\_lokesh](https://discourse.julialang.org/u/aditya_lokesh)\
**Replies:** 1\
**Last updated:** [December 6, 2024, 9:20pm UTC](https://discourse.julialang.org/t/vehical-routing-problem-with-time-windows/123550 "2024-12-06T21:20:12Z")

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The VRPTW is defined by a fleet of vehicles, V, a set of customers, C, and a directed graph Q, Typically the fleet is considered to be homo- geneous, that is, all vehicles are identical. The graph consists of |C| + 2 …

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## [Are there any helpers for searching a complex code base in VS Code?](https://discourse.julialang.org/t/are-there-any-helpers-for-searching-a-complex-code-base-in-vs-code/123522)

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**Author:** [@PetrKryslUCSD](https://discourse.julialang.org/u/PetrKryslUCSD)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 7:38pm UTC](https://discourse.julialang.org/t/are-there-any-helpers-for-searching-a-complex-code-base-in-vs-code/123522 "2024-12-06T19:38:27Z")

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LSP is no help. What do people use? Is there an extension for that sort of thing?

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## [What is the intended use case for \`JULIA\_LOAD\_PATH\` and \`JULIA\_DEPOT\_PATH\`?](https://discourse.julialang.org/t/what-is-the-intended-use-case-for-julia-load-path-and-julia-depot-path/123452)

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**Author:** [@world-peace](https://discourse.julialang.org/u/world-peace)\
**Replies:** 15\
**Last updated:** [December 6, 2024, 7:18pm UTC](https://discourse.julialang.org/t/what-is-the-intended-use-case-for-julia-load-path-and-julia-depot-path/123452 "2024-12-06T19:18:01Z")

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My reading of the docs causes me to conclude the following: Environment Variables · The Julia Language JULIA\_DEPOT\_PATH controls where Julia will save packages downloaded via pkg If set, JULIA\_DEPOT\_PATH specifi…

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## [Rent GPUs for teaching programming GPU in Julia](https://discourse.julialang.org/t/rent-gpus-for-teaching-programming-gpu-in-julia/123538)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 4\
**Last updated:** [December 6, 2024, 6:42pm UTC](https://discourse.julialang.org/t/rent-gpus-for-teaching-programming-gpu-in-julia/123538 "2024-12-06T18:42:36Z")

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Hello, we are facing following problem. We are teaching programming in Julia and in the last lecture, we want to practice programming GPUs. Though our course was assigned to a room, where computers do not have nvidia g…

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## [Custom REPL keymap does not work](https://discourse.julialang.org/t/custom-repl-keymap-does-not-work/123546)

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**Author:** [@Sixzero](https://discourse.julialang.org/u/Sixzero)\
**Replies:** 1\
**Last updated:** [December 6, 2024, 4:25pm UTC](https://discourse.julialang.org/t/custom-repl-keymap-does-not-work/123546 "2024-12-06T16:25:42Z")

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I’m trying to create a custom REPL mode with custom keybindings. Here’s an MVP that demonstrates this issue with prints: using REPL using ReplMaker using REPL.LineEdit: MIState # Simple parser that echoes input parser…

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## [Is there a feature like C's #define in order to compile or not e.g. println](https://discourse.julialang.org/t/is-there-a-feature-like-cs-define-in-order-to-compile-or-not-e-g-println/123542)

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**Author:** [@Ju\_ska](https://discourse.julialang.org/u/Ju_ska)\
**Replies:** 4\
**Last updated:** [December 6, 2024, 5:07pm UTC](https://discourse.julialang.org/t/is-there-a-feature-like-cs-define-in-order-to-compile-or-not-e-g-println/123542 "2024-12-06T17:07:47Z")

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Hi, I would like to activate/deactivate integration of some println in my compiled code. I guess I could set a debug constant and fill the code with: const debug = 0 if debug == 1 println("value = " \* value) end …

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## [Disable rounding when displaying Dataframe values](https://discourse.julialang.org/t/disable-rounding-when-displaying-dataframe-values/123541)

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**Author:** [@Ju\_ska](https://discourse.julialang.org/u/Ju_ska)\
**Replies:** 1\
**Last updated:** [December 6, 2024, 3:07pm UTC](https://discourse.julialang.org/t/disable-rounding-when-displaying-dataframe-values/123541 "2024-12-06T15:07:58Z")

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Hi, is it possible to disable rounding when displaying Dataframe values ? For instance, I spent a few minutes trying to figure out why I got the year 2001.0 (Float) in my dataframe where I should have read 2000.9999.

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## [HarmonicBalance.jl: get\_independent\_variables: Method Error](https://discourse.julialang.org/t/harmonicbalance-jl-get-independent-variables-method-error/123536)

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**Author:** [@Domenico\_Lahaye](https://discourse.julialang.org/u/Domenico_Lahaye)\
**Replies:** 3\
**Last updated:** [December 6, 2024, 2:59pm UTC](https://discourse.julialang.org/t/harmonicbalance-jl-get-independent-variables-method-error/123536 "2024-12-06T14:59:17Z")

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A basic example of HarmonicBalance.jl fails. I am looking for ways to fix it. Advice is appreciated. julia\> using HarmonicBalance │ Package HarmonicBalance not found, but a package named HarmonicBalance is │ availab…

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## [Why does the plot line disappear?](https://discourse.julialang.org/t/why-does-the-plot-line-disappear/122406)

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**Author:** [@TongTongYee](https://discourse.julialang.org/u/TongTongYee)\
**Replies:** 4\
**Last updated:** [December 6, 2024, 2:26pm UTC](https://discourse.julialang.org/t/why-does-the-plot-line-disappear/122406 "2024-12-06T14:26:54Z")

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In the case below, plot line disappears. using Plots plot(\[1.0e9,1,1,1,1\],ylim=(0.0,10)) But, in the another case below, plot line does not disappear. Everything operates normally. plot(\[1,1,1,1\],ylim=(0.0,10)) My ve…

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## [Where are saved git-commited packages?](https://discourse.julialang.org/t/where-are-saved-git-commited-packages/123527)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 2\
**Last updated:** [December 6, 2024, 2:22pm UTC](https://discourse.julialang.org/t/where-are-saved-git-commited-packages/123527 "2024-12-06T14:22:02Z")

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When I run: Pkg.add(url="git@github.com:sylvaticus/DICE.jl.git", rev="master") (without Pkg.dev) where the source code of the package is saved ?

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## [Using PyPlot on MacOS](https://discourse.julialang.org/t/using-pyplot-on-macos/123512)

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**Author:** [@Domenico\_Lahaye](https://discourse.julialang.org/u/Domenico_Lahaye)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 1:08pm UTC](https://discourse.julialang.org/t/using-pyplot-on-macos/123512 "2024-12-06T13:08:18Z")

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Apologies for being confused and not very constructive. This issue was discussed on this forum before. I thought I had this fixed after updating conda. It was working. But then inadvertly I broke it again. I am trying…

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## [Problem installing prerequisites for building Julia](https://discourse.julialang.org/t/problem-installing-prerequisites-for-building-julia/105128)

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**Author:** [@TheLateKronos](https://discourse.julialang.org/u/TheLateKronos)\
**Replies:** 15\
**Last updated:** [December 6, 2024, 12:46pm UTC](https://discourse.julialang.org/t/problem-installing-prerequisites-for-building-julia/105128 "2024-12-06T12:46:39Z")

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The README for the official julia repo links to this set of instructions for building julia. The latter link states that On Debian-based distributions (e.g. Ubuntu), you can easily install them with apt-get: sudo apt-…

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## [Why isn't there a non-! version of deleteat!()?](https://discourse.julialang.org/t/why-isnt-there-a-non-version-of-deleteat/123355)

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**Author:** [@francisbarton](https://discourse.julialang.org/u/francisbarton)\
**Replies:** 8\
**Last updated:** [December 6, 2024, 12:29pm UTC](https://discourse.julialang.org/t/why-isnt-there-a-non-version-of-deleteat/123355 "2024-12-06T12:29:41Z")

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I just used the following bit of code in an Advent of Code puzzle, to sequentially alter a vector by removing one of its elements in turn: deleteat!(copy(r), i) for i in 1:length(r) I believe I had to use copy() here, …

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## [MiniObserve.jl](https://discourse.julialang.org/t/miniobserve-jl/123539)

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**Author:** [@mhinsch](https://discourse.julialang.org/u/mhinsch)\
**Replies:** 0\
**Last updated:** [December 6, 2024, 12:29pm UTC](https://discourse.julialang.org/t/miniobserve-jl/123539 "2024-12-06T12:29:34Z")

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I have finally managed to bring my package MiniObserve.jl into a state where I feel comfortable with announcing it. Very, very briefly MiniObserve makes it easy to declaratively add structured output and analysis to a s…

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## [Is there a way to suppress Julia from loading the \`startup.jl\` file, using a command line flag?](https://discourse.julialang.org/t/is-there-a-way-to-suppress-julia-from-loading-the-startup-jl-file-using-a-command-line-flag/123530)

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**Author:** [@world-peace](https://discourse.julialang.org/u/world-peace)\
**Replies:** 3\
**Last updated:** [December 6, 2024, 11:33am UTC](https://discourse.julialang.org/t/is-there-a-way-to-suppress-julia-from-loading-the-startup-jl-file-using-a-command-line-flag/123530 "2024-12-06T11:33:33Z")

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I’m doing some testing, and I need a way to do two things: Load a temporary, customized startup.jl file Stop Julia from automatically loading startup.jl, which in this particular case is the one from the users home dir…

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## [Add type's method to Base](https://discourse.julialang.org/t/add-types-method-to-base/123529)

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**Author:** [@nabla](https://discourse.julialang.org/u/nabla)\
**Replies:** 2\
**Last updated:** [December 6, 2024, 11:18am UTC](https://discourse.julialang.org/t/add-types-method-to-base/123529 "2024-12-06T11:18:08Z")

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I want to add a method directly to Base (it’s a basic operation :(!)). I’m aware of set\_override\_module(jl\_base\_module) and unset\_override\_module(). However, I want to define a method for an object myclass, and the foll…

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## [Unable to automatically install 'Libtiff' from](https://discourse.julialang.org/t/unable-to-automatically-install-libtiff-from/123434)

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**Author:** [@jay\_Gao](https://discourse.julialang.org/u/jay_Gao)\
**Replies:** 4\
**Last updated:** [December 6, 2024, 10:57am UTC](https://discourse.julialang.org/t/unable-to-automatically-install-libtiff-from/123434 "2024-12-06T10:57:12Z")

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when I am trying to install “ContactImplicitMPC” package in Julia 1.6.7 ,I get the error message: (examples) pkg\> add ContactImplicitMPC Resolving package versions... Downloaded artifact: Libtiff Downloaded ar…

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## [What is the standard way to debug Julia?](https://discourse.julialang.org/t/what-is-the-standard-way-to-debug-julia/90436)

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**Author:** [@bertulli](https://discourse.julialang.org/u/bertulli)\
**Replies:** 19\
**Last updated:** [December 6, 2024, 10:53am UTC](https://discourse.julialang.org/t/what-is-the-standard-way-to-debug-julia/90436 "2024-12-06T10:53:03Z")

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Hi all! Sorry for the noobish question (borderline between Tooling and General usage). I needed to debug a piece of Julia code yesterday, so I checked online what was the official debugger. I was surprised to find there…

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## [Rebuilding Data from Heatmaps](https://discourse.julialang.org/t/rebuilding-data-from-heatmaps/122291)

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**Author:** [@Deceneu](https://discourse.julialang.org/u/Deceneu)\
**Replies:** 6\
**Last updated:** [December 6, 2024, 10:19am UTC](https://discourse.julialang.org/t/rebuilding-data-from-heatmaps/122291 "2024-12-06T10:19:52Z")

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Hello, first time posting, might be in the wrong category. I need to extract scalar values from heatmaps saved as images. I don’t have access to the raw data, only compressed JPGs with inlayed colorbars. I would think …

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## [WGLMakie plot size in Grid](https://discourse.julialang.org/t/wglmakie-plot-size-in-grid/123526)

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**Author:** [@cstjean](https://discourse.julialang.org/u/cstjean)\
**Replies:** 1\
**Last updated:** [December 6, 2024, 9:40am UTC](https://discourse.julialang.org/t/wglmakie-plot-size-in-grid/123526 "2024-12-06T09:40:23Z")

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I’m using Bonito.Grid with Makie plots. I find that while Grid works generally as advertised, the Makie plots seem quite stubborn about their figure size, and do not generally “take the space available for them”, but rat…

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## [\[ANN\] Jjama3.jl (unregistered) - Llama3.1 and Llama3.2 (text) in Julia](https://discourse.julialang.org/t/ann-jjama3-jl-unregistered-llama3-1-and-llama3-2-text-in-julia/122641)

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**Author:** [@Noob](https://discourse.julialang.org/u/Noob)\
**Replies:** 9\
**Last updated:** [December 6, 2024, 9:27am UTC](https://discourse.julialang.org/t/ann-jjama3-jl-unregistered-llama3-1-and-llama3-2-text-in-julia/122641 "2024-12-06T09:27:35Z")

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What it says in the title. Is this the fastest transformer implementation? No. But is it flexible enough to handle large families of LLMs? Also no. It is not heavily optimized, but it does have eg. KV-caching so sampl…

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## [How to rebuild toml files?](https://discourse.julialang.org/t/how-to-rebuild-toml-files/123523)

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**Author:** [@Stephen\_Vavasis](https://discourse.julialang.org/u/Stephen_Vavasis)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 9:26am UTC](https://discourse.julialang.org/t/how-to-rebuild-toml-files/123523 "2024-12-06T09:26:34Z")

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My package under development has the file structure MyPackage/src and MyPackage/examples. My development process has been: julia\> using Revise pkg\> dev . pkg\> activate ./examples julia\> include("./examples/first\_exampl…

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## [Integrating Julia into a JUCE Plugin](https://discourse.julialang.org/t/integrating-julia-into-a-juce-plugin/123468)

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**Author:** [@seclorum](https://discourse.julialang.org/u/seclorum)\
**Replies:** 4\
**Last updated:** [December 6, 2024, 9:24am UTC](https://discourse.julialang.org/t/integrating-julia-into-a-juce-plugin/123468 "2024-12-06T09:24:28Z")

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Hi there, I’m pretty new to Julia and decided to bite off a huge chunk of technical naivete and try to integrate a simple Julia module (a port of Tony Hardy-Bicks DFM1 Korg MS20 filter) into a JUCE Plugin project. My r…

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## [Problem with Package Release](https://discourse.julialang.org/t/problem-with-package-release/123401)

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**Author:** [@RainerHeintzmann](https://discourse.julialang.org/u/RainerHeintzmann)\
**Replies:** 9\
**Last updated:** [December 6, 2024, 8:35am UTC](https://discourse.julialang.org/t/problem-with-package-release/123401 "2024-12-06T08:35:28Z")

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I was trying to release a new version 0.6.1 of View5D.jl. Everything went smoothly including the Merge: Yet somehow this release does not seem to appear and also the TagBot in my Repo was triggered but did not creat…

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## [About registrator](https://discourse.julialang.org/t/about-registrator/123446)

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**Author:** [@Andrea\_Vigliotti](https://discourse.julialang.org/u/Andrea_Vigliotti)\
**Replies:** 3\
**Last updated:** [December 6, 2024, 8:20am UTC](https://discourse.julialang.org/t/about-registrator/123446 "2024-12-06T08:20:25Z")

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HI all, I made some small modification to a registered package, AD4SM.jl, I am the only contributor, and I called registrator from the web interface from here the new (0.0.5) version was accepted and is now visible her…

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## [OAuth 2.0 Authentication in pure Julia](https://discourse.julialang.org/t/oauth-2-0-authentication-in-pure-julia/33135)

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**Author:** [@ASF](https://discourse.julialang.org/u/ASF)\
**Replies:** 5\
**Last updated:** [December 6, 2024, 7:28am UTC](https://discourse.julialang.org/t/oauth-2-0-authentication-in-pure-julia/33135 "2024-12-06T07:28:28Z")

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I want to grab some data through an API call but I need to authenticate my requests via oauth2. What is the easiest way to do this in pure Julia?

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## [Too many bifurcation points marked](https://discourse.julialang.org/t/too-many-bifurcation-points-marked/123504)

<div class="topic-metadata">

**Author:** [@Caitlin\_Lienkaemper](https://discourse.julialang.org/u/Caitlin_Lienkaemper)\
**Replies:** 8\
**Last updated:** [December 6, 2024, 5:18am UTC](https://discourse.julialang.org/t/too-many-bifurcation-points-marked/123504 "2024-12-06T05:18:59Z")

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I’m trying to use BifurcationKit.jl to continue a periodic orbit in a 2d dynamical system. Currently, I’m seeing “too many” bifurcation points marked, i.e. blue points marked “bp” appear where the system does not change …

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