# New to Julia

**URL:** https://discourse.julialang.org/c/first-steps/8.md?page=3

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

**Page:** 4

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## [Audio processing in Julia](https://discourse.julialang.org/t/audio-processing-in-julia/35248)

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**Author:** [@minifdez11](https://discourse.julialang.org/u/minifdez11)\
**Replies:** 6\
**Last updated:** [February 27, 2026, 4:55pm UTC](https://discourse.julialang.org/t/audio-processing-in-julia/35248 "2026-02-27T16:55:30Z")

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Hi, I want to make some operations with an mp3 file or WAV file, like splitting, but idk how to make it in Julia, i saw that the pkgs LibSndFile.jl, AudioIO.jl and WAV.jl don’t work well, is there any library that will h…

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## [Test can't see packages in main project](https://discourse.julialang.org/t/test-cant-see-packages-in-main-project/135859)

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**Author:** [@Magnus\_Lilledahl](https://discourse.julialang.org/u/Magnus_Lilledahl)\
**Replies:** 4\
**Last updated:** [February 27, 2026, 10:45am UTC](https://discourse.julialang.org/t/test-cant-see-packages-in-main-project/135859 "2026-02-27T10:45:20Z")

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I am trying to use workspaces for adding tests to a project. I have added \[workspace\] projects = \["test"\] to the Project.toml in the main package. The pkg\>status of the main project is Project AggregatorX v0.1.0 Statu…

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## [Disabling AI help while teaching with Pluto](https://discourse.julialang.org/t/disabling-ai-help-while-teaching-with-pluto/135516)

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**Author:** [@Offray](https://discourse.julialang.org/u/Offray)\
**Replies:** 4\
**Last updated:** [February 27, 2026, 12:06am UTC](https://discourse.julialang.org/t/disabling-ai-help-while-teaching-with-pluto/135516 "2026-02-27T00:06:29Z")

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Hi all, After having it in my radar for some years, I’ll be starting to teach in Julia in the Information Sciences department of the Javeriana University, in Bogota, Colombia. I have been a long Pharo user, enthusiast a…

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## [Named tuple, numbers as keys](https://discourse.julialang.org/t/named-tuple-numbers-as-keys/135877)

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**Author:** [@mekapses](https://discourse.julialang.org/u/mekapses)\
**Replies:** 3\
**Last updated:** [February 26, 2026, 8:41pm UTC](https://discourse.julialang.org/t/named-tuple-numbers-as-keys/135877 "2026-02-26T20:41:16Z")

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So it looks as though you can’t use numbers as keys for a named tuple? I do a = (; zip(collect(1:2), wt\_pyramid)) and get ERROR: syntax: invalid named tuple element "zip(collect(1:2), wt\_pyramid)" around REPL\[…

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## [How to keep Julia dependencies precompiled between terminal sessions?](https://discourse.julialang.org/t/how-to-keep-julia-dependencies-precompiled-between-terminal-sessions/135841)

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**Author:** [@Farouk](https://discourse.julialang.org/u/Farouk)\
**Replies:** 12\
**Last updated:** [February 26, 2026, 10:50am UTC](https://discourse.julialang.org/t/how-to-keep-julia-dependencies-precompiled-between-terminal-sessions/135841 "2026-02-26T10:50:20Z")

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Hello everyone, I’m developing a Julia-based simulation model that runs from the terminal (no UI). Each time I execute the script, it precompiles all dependencies, which takes quite a long time (around 8 minutes). Is t…

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## [GSOC'26 : guidance on getting started with MedImages.jl](https://discourse.julialang.org/t/gsoc26-guidance-on-getting-started-with-medimages-jl/135850)

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**Author:** [@muskan1216](https://discourse.julialang.org/u/muskan1216)\
**Replies:** 0\
**Last updated:** [February 26, 2026, 5:46am UTC](https://discourse.julialang.org/t/gsoc26-guidance-on-getting-started-with-medimages-jl/135850 "2026-02-26T05:46:58Z")

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Hello everyone, I am new to the Julia ecosystem and interested in contributing to MedChem.jl. I have set up Julia locally and am exploring the repository, but I would appreciate some guidance to get started effectively…

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## [Using zip or enumerate within IF?](https://discourse.julialang.org/t/using-zip-or-enumerate-within-if/132608)

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**Author:** [@Snowy](https://discourse.julialang.org/u/Snowy)\
**Replies:** 4\
**Last updated:** [February 25, 2026, 4:27pm UTC](https://discourse.julialang.org/t/using-zip-or-enumerate-within-if/132608 "2026-02-25T16:27:03Z")

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Hello, Is there a way to use zip() or enumerate() within the IF statement? I’m looking for a safter way to run the code below. I’ve created structs to dispatch an appropriate model based off a “category” in a dataframe…

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## [Test if string begins with number](https://discourse.julialang.org/t/test-if-string-begins-with-number/23809)

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**Author:** [@Luigi\_Marongiu](https://discourse.julialang.org/u/Luigi_Marongiu)\
**Replies:** 7\
**Last updated:** [February 24, 2026, 10:03pm UTC](https://discourse.julialang.org/t/test-if-string-begins-with-number/23809 "2026-02-24T22:03:16Z")

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Dear all, it is possible to test whether a string starts with a number? Let’s say I have the following: julia\> x="Some string" "Some string" julia\> y="1 Another string" "1 Another string" julia\> X=x\[1\] 'S': ASCII/Un…

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## [Very impressed with Julia](https://discourse.julialang.org/t/very-impressed-with-julia/133278)

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**Author:** [@op3n](https://discourse.julialang.org/u/op3n)\
**Replies:** 3\
**Last updated:** [February 23, 2026, 7:55pm UTC](https://discourse.julialang.org/t/very-impressed-with-julia/133278 "2026-02-23T19:55:05Z")

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My first post, and first dips into Julia Just started less than 24 hours ago, and very impressed with Julia Thank you

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## [Strange arithmetic behaviour using structs](https://discourse.julialang.org/t/strange-arithmetic-behaviour-using-structs/135778)

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**Author:** [@Utz78](https://discourse.julialang.org/u/Utz78)\
**Replies:** 2\
**Last updated:** [February 22, 2026, 6:04pm UTC](https://discourse.julialang.org/t/strange-arithmetic-behaviour-using-structs/135778 "2026-02-22T18:04:22Z")

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I have noticed a strange behaviour when using structs in a simple equation. When I use structs the results of the calculations are wrong, and I cannot really understand why. I have made a minimal example that demonstrate…

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## [Can't install PyCall](https://discourse.julialang.org/t/cant-install-pycall/135546)

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**Author:** [@Redwood](https://discourse.julialang.org/u/Redwood)\
**Replies:** 7\
**Last updated:** [February 21, 2026, 4:20am UTC](https://discourse.julialang.org/t/cant-install-pycall/135546 "2026-02-21T04:20:46Z")

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I’ve tried to install PyCall numerous times, but can never get it to work. I’ve tried manually setting the environment variable PYTHON to the directory where the lastest python.exe file is, but that doesn’t work. When I …

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## [Is there a work around to make a symlog plot in Plots.jl?](https://discourse.julialang.org/t/is-there-a-work-around-to-make-a-symlog-plot-in-plots-jl/134119)

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**Author:** [@jwtkeeble](https://discourse.julialang.org/u/jwtkeeble)\
**Replies:** 4\
**Last updated:** [February 20, 2026, 11:16am UTC](https://discourse.julialang.org/t/is-there-a-work-around-to-make-a-symlog-plot-in-plots-jl/134119 "2026-02-20T11:16:23Z")

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Hi All, Is there a way to plot a histogram in Plots.jl with a symlog scale on the x-axis? With matplotlib, there’s a symlog x-scale property. However, there doesn’t seem to be one in Plots.jl? Unless I’ve missed somethi…

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## [\[Documentation Incomplete Explanation?\] Methods Chapter - Redefining Methods](https://discourse.julialang.org/t/documentation-incomplete-explanation-methods-chapter-redefining-methods/135695)

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**Author:** [@fincleah](https://discourse.julialang.org/u/fincleah)\
**Replies:** 4\
**Last updated:** [February 20, 2026, 11:04am UTC](https://discourse.julialang.org/t/documentation-incomplete-explanation-methods-chapter-redefining-methods/135695 "2026-02-20T11:04:06Z")

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Hi - I’m currently reading the manual to learn Julia. I’ve spotted maybe an incomplete example in the Methods chapter on redefining methods. It seems to say that there are two definitions of the newfun() function, but …

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## [Is there an interactive CLI tool to learn Julia like rustlings for Rust?](https://discourse.julialang.org/t/is-there-an-interactive-cli-tool-to-learn-julia-like-rustlings-for-rust/135715)

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**Author:** [@mpampuch](https://discourse.julialang.org/u/mpampuch)\
**Replies:** 1\
**Last updated:** [February 17, 2026, 9:25pm UTC](https://discourse.julialang.org/t/is-there-an-interactive-cli-tool-to-learn-julia-like-rustlings-for-rust/135715 "2026-02-17T21:25:47Z")

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I’m just wondering more out of curiosity than for necessity because I’ve been learning Julia through MIT’s computational thinking course and it’s been a great way to learn, but it’s very lecture heavy and time consuming.…

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## [Concerns about this recursive algorithm](https://discourse.julialang.org/t/concerns-about-this-recursive-algorithm/135709)

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**Author:** [@i-inferno](https://discourse.julialang.org/u/i-inferno)\
**Replies:** 2\
**Last updated:** [February 17, 2026, 5:35pm UTC](https://discourse.julialang.org/t/concerns-about-this-recursive-algorithm/135709 "2026-02-17T17:35:21Z")

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good morning, afternoon or evening. i was working with a for loop today and something seems to have gone very wrong as this is supposed to create a much larger file than it has nx = 200 ny = 100 touch("image.PPM") open…

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## [\[Documentation Minor Typo?\] Parametric Methods - Statement Regarding Return Type Declarations](https://discourse.julialang.org/t/documentation-minor-typo-parametric-methods-statement-regarding-return-type-declarations/135694)

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**Author:** [@fincleah](https://discourse.julialang.org/u/fincleah)\
**Replies:** 0\
**Last updated:** [February 16, 2026, 10:28pm UTC](https://discourse.julialang.org/t/documentation-minor-typo-parametric-methods-statement-regarding-return-type-declarations/135694 "2026-02-16T22:28:53Z")

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Hi All, I’ve been reading through the manual in order to learn Julia, and I’m on the Methods chapter. However, I think I’ve spotted a typo? It’s a very minor thing - but I think the sentence is saying that the where st…

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## ['flow' layout in Makie](https://discourse.julialang.org/t/flow-layout-in-makie/135646)

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**Author:** [@mahmah](https://discourse.julialang.org/u/mahmah)\
**Replies:** 1\
**Last updated:** [February 14, 2026, 8:57pm UTC](https://discourse.julialang.org/t/flow-layout-in-makie/135646 "2026-02-14T20:57:26Z")

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Is there any way to easily plot a grid of subfigures in Makie, similarly to e.g. 'layout = 4' in Plots.jl or do we need to do e.g. axs = \[Axis(fig\[i, j\]) for i in 1:3, j in 1:3\] ?

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## [Pearson correlation p-value](https://discourse.julialang.org/t/pearson-correlation-p-value/135645)

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**Author:** [@mahmah](https://discourse.julialang.org/u/mahmah)\
**Replies:** 5\
**Last updated:** [February 14, 2026, 6:46pm UTC](https://discourse.julialang.org/t/pearson-correlation-p-value/135645 "2026-02-14T18:46:34Z")

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Hi! I see that HypothesisTests.CorrelationTest makes a test for nonzero correlation. It prints the results of the test, including the two-sided p-value. How can I access that p-value? The output only has the fields k, n,…

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## [Unitful.jl and DifferentialEquations.jl: compatibility?](https://discourse.julialang.org/t/unitful-jl-and-differentialequations-jl-compatibility/68594)

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**Author:** [@Ickaser](https://discourse.julialang.org/u/Ickaser)\
**Replies:** 16\
**Last updated:** [February 13, 2026, 11:56pm UTC](https://discourse.julialang.org/t/unitful-jl-and-differentialequations-jl-compatibility/68594 "2026-02-13T23:56:04Z")

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I’ve been using Julia for a little while, long enough to have successfully solved ODEs before. I’m trying to use DifferentialEquations together with Unitful, which I thought I had read should work, but it doesn’t seem to…

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## [How to create a DataFrame from code literals, especially with Unitful?](https://discourse.julialang.org/t/how-to-create-a-dataframe-from-code-literals-especially-with-unitful/135613)

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**Author:** [@bertulli](https://discourse.julialang.org/u/bertulli)\
**Replies:** 8\
**Last updated:** [February 13, 2026, 6:35pm UTC](https://discourse.julialang.org/t/how-to-create-a-dataframe-from-code-literals-especially-with-unitful/135613 "2026-02-13T18:35:45Z")

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Hi all! I’m working with some physical quantities and I’d like to use Unitful.jl for that. I am wondering two things: what is the most easily maintainable, and/or efficient way to crate a DataFrame from code literals (…

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## [Julia for Excel users](https://discourse.julialang.org/t/julia-for-excel-users/135599)

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**Author:** [@technocrat](https://discourse.julialang.org/u/technocrat)\
**Replies:** 4\
**Last updated:** [February 13, 2026, 5:23pm UTC](https://discourse.julialang.org/t/julia-for-excel-users/135599 "2026-02-13T17:23:30Z")

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Use your own spreadsheet instead of the demo, and if you do, the fake data will be bypassed # ============================================================================== # Julia Starter Template for Excel Users # Mis…

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## [Find n smallest values in an n dims array](https://discourse.julialang.org/t/find-n-smallest-values-in-an-n-dims-array/81092)

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**Author:** [@marianoarnaiz](https://discourse.julialang.org/u/marianoarnaiz)\
**Replies:** 22\
**Last updated:** [February 13, 2026, 2:07pm UTC](https://discourse.julialang.org/t/find-n-smallest-values-in-an-n-dims-array/81092 "2026-02-13T14:07:33Z")

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Hi Every one! I have the bad tendency of working with N dims arrays. Right now I have a 10x20x6 arrays and I need to find the index of the 5 smallest values. I have tried PartialQuickSort and argmin but I can’t get the…

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## [Problems in installing Julia](https://discourse.julialang.org/t/problems-in-installing-julia/135610)

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**Author:** [@m\_terr](https://discourse.julialang.org/u/m_terr)\
**Replies:** 1\
**Last updated:** [February 13, 2026, 11:46am UTC](https://discourse.julialang.org/t/problems-in-installing-julia/135610 "2026-02-13T11:46:37Z")

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Hi, I tried to install Julia; at first everything worked just fine and I downloaded notebooks and I run them. Later, when trying to open Julia an error popped up (unfortunalety I have no screenshot of that, but it was s…

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## [Shortcut to display an entire vector in the REPL](https://discourse.julialang.org/t/shortcut-to-display-an-entire-vector-in-the-repl/135580)

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**Author:** [@devel-chm](https://discourse.julialang.org/u/devel-chm)\
**Replies:** 11\
**Last updated:** [February 12, 2026, 2:10pm UTC](https://discourse.julialang.org/t/shortcut-to-display-an-entire-vector-in-the-repl/135580 "2026-02-12T14:10:55Z")

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Is there a way to have the REPL not elide the middle elements from the display of an array or vector? This has probably been asked before but I can’t find the reference or a solution. This is probably one of the pain…

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## [Installed size on Windows 11, 64 bit, was 1.4 GB for 1.12.4, now it's 1.0GB for 1.12.5](https://discourse.julialang.org/t/installed-size-on-windows-11-64-bit-was-1-4-gb-for-1-12-4-now-its-1-0gb-for-1-12-5/135584)

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**Author:** [@JustCurious](https://discourse.julialang.org/u/JustCurious)\
**Replies:** 4\
**Last updated:** [February 12, 2026, 7:40am UTC](https://discourse.julialang.org/t/installed-size-on-windows-11-64-bit-was-1-4-gb-for-1-12-4-now-its-1-0gb-for-1-12-5/135584 "2026-02-12T07:40:54Z")

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Is there a summary of changes that accounts for this reduction?

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## [What's so special about 1.11?](https://discourse.julialang.org/t/whats-so-special-about-1-11/135534)

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**Author:** [@lrnv](https://discourse.julialang.org/u/lrnv)\
**Replies:** 5\
**Last updated:** [February 11, 2026, 11:29am UTC](https://discourse.julialang.org/t/whats-so-special-about-1-11/135534 "2026-02-11T11:29:55Z")

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I noticed that 1.11 is continuously being developped as though 1.12 is already there, which is an exception to the normal behavior: minor updates to 1.11 should stop once minor updates to 1.12 started. This is going on …

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## [Configuring IJulia in MacOS](https://discourse.julialang.org/t/configuring-ijulia-in-macos/135371)

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**Author:** [@ij05](https://discourse.julialang.org/u/ij05)\
**Replies:** 7\
**Last updated:** [February 8, 2026, 8:49pm UTC](https://discourse.julialang.org/t/configuring-ijulia-in-macos/135371 "2026-02-08T20:49:29Z")

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Hello, I have been trying to install Julia into a MacOS, which I am not yet familiar with. As advided by the installation page, I tried: curl -fsSL https://install.julialang.org | sh I have added IJulia Package. But u…

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## [XLSX package](https://discourse.julialang.org/t/xlsx-package/135513)

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**Author:** [@Terry](https://discourse.julialang.org/u/Terry)\
**Replies:** 5\
**Last updated:** [February 6, 2026, 6:39pm UTC](https://discourse.julialang.org/t/xlsx-package/135513 "2026-02-06T18:39:37Z")

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I am coming to Julia from R. I really like Julia, but it is limited by rather poor documentation. I could not find good documentation for the XLSX package. I found instructions online for creating an xlsx file from a d…

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## [Truthiness and short circuit or](https://discourse.julialang.org/t/truthiness-and-short-circuit-or/135486)

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**Author:** [@Magnus\_Lilledahl](https://discourse.julialang.org/u/Magnus_Lilledahl)\
**Replies:** 14\
**Last updated:** [February 6, 2026, 3:43pm UTC](https://discourse.julialang.org/t/truthiness-and-short-circuit-or/135486 "2026-02-06T15:43:04Z")

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…based on a made up story: Somewhere in the cold, dark code \>a = true && "scam" The greedy novice wonders trough the code and asks: \>a == false false …so a must true. Sweet! try if a println("send me a…

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## [\[GSoC 2026\] Considering QuantumClifford.jl](https://discourse.julialang.org/t/gsoc-2026-considering-quantumclifford-jl/135455)

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**Author:** [@GlowingScrewdriver](https://discourse.julialang.org/u/GlowingScrewdriver)\
**Replies:** 2\
**Last updated:** [February 5, 2026, 2:43pm UTC](https://discourse.julialang.org/t/gsoc-2026-considering-quantumclifford-jl/135455 "2026-02-05T14:43:33Z")

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Hi. I am new to Julia, but I’m seriously considering applying for the GSoC 2026 under Julia. I have some background in performance analysis and optimization on GPUs (that’s my work on a daily basis right now), and I rec…

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