# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1207

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

**Page:** 1208

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## [How to add package from a folder (not registered) into the the project?](https://discourse.julialang.org/t/how-to-add-package-from-a-folder-not-registered-into-the-the-project/71386)

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**Author:** [@Amro](https://discourse.julialang.org/u/Amro)\
**Replies:** 10\
**Last updated:** [November 14, 2021, 1:01pm UTC](https://discourse.julialang.org/t/how-to-add-package-from-a-folder-not-registered-into-the-the-project/71386 "2021-11-14T13:01:19Z")

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I am trying to add a package called MyModule (I have designed it) but I am not being able to (@v1.6) pkg\> add MyModule ERROR: The following package names could not be resolved: \* MyModule (not found in project, manifes…

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## ["Tensor LLVM Extensions ..." proposal + Julia example in the design document](https://discourse.julialang.org/t/tensor-llvm-extensions-proposal-julia-example-in-the-design-document/71456)

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**Author:** [@ImreSamu](https://discourse.julialang.org/u/ImreSamu)\
**Replies:** 0\
**Last updated:** [November 14, 2021, 12:41pm UTC](https://discourse.julialang.org/t/tensor-llvm-extensions-proposal-julia-example-in-the-design-document/71456 "2021-11-14T12:41:03Z")

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“Tensor LLVM Extensions Proposed For Targeting AI Accelerators, Emerging Hardware” ( via/context: Tensor LLVM Extensions Proposed For Targeting AI Accelerators, Emerging Hardware - Phoronix 14 November 2021 ) And a …

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## [oneAPI error when running basic example on Intel internal GPU](https://discourse.julialang.org/t/oneapi-error-when-running-basic-example-on-intel-internal-gpu/71452)

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**Author:** [@b1d](https://discourse.julialang.org/u/b1d)\
**Replies:** 2\
**Last updated:** [November 14, 2021, 12:20pm UTC](https://discourse.julialang.org/t/oneapi-error-when-running-basic-example-on-intel-internal-gpu/71452 "2021-11-14T12:20:02Z")

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Hi there, I just installed oneAPI just as an experiment. I’m afraid I was not able to run all the examples and searching for a solution was not solving the issue. So I kindly ask for a hint to get this running, or just …

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## [Align text in loop println](https://discourse.julialang.org/t/align-text-in-loop-println/71438)

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**Author:** [@Sbeltranj](https://discourse.julialang.org/u/Sbeltranj)\
**Replies:** 3\
**Last updated:** [November 13, 2021, 11:47pm UTC](https://discourse.julialang.org/t/align-text-in-loop-println/71438 "2021-11-13T23:47:03Z")

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Hi, I would like to align the column (v), how do I do it? vect\_mov = reshape(a,3,nno)' # matrix 3x4 for i = 1:nno u = (round(1000\*vect\_mov\[i,1\], digits = 3)) v = (round(1000\*vect\_mov\[i,2\], digits = 3)) …

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## [What is the correct way to create a "pointer to pointer"?](https://discourse.julialang.org/t/what-is-the-correct-way-to-create-a-pointer-to-pointer/71442)

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**Author:** [@heyx3](https://discourse.julialang.org/u/heyx3)\
**Replies:** 2\
**Last updated:** [November 14, 2021, 8:24am UTC](https://discourse.julialang.org/t/what-is-the-correct-way-to-create-a-pointer-to-pointer/71442 "2021-11-14T08:24:18Z")

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OpenGL has a function for compiling shader source code. It takes an array of strings, a.k.a. const char\*\*. I can see an example in ModernGL.jl of how to do this with pointers: source::String = "..." ptr\_to\_ptr = convert…

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## [Error in loading Julia](https://discourse.julialang.org/t/error-in-loading-julia/71450)

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**Author:** [@Tsegev123](https://discourse.julialang.org/u/Tsegev123)\
**Replies:** 0\
**Last updated:** [November 14, 2021, 7:47am UTC](https://discourse.julialang.org/t/error-in-loading-julia/71450 "2021-11-14T07:47:47Z")

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Hey all!, I am new to julia and I have some trouble in launching it… for some reason it gives me an error and I can’t identify what is the source. can anybody can help me with the issue ?

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## [How to serve a file with specific MIME / media type in Genie?](https://discourse.julialang.org/t/how-to-serve-a-file-with-specific-mime-media-type-in-genie/71447)

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**Author:** [@ProvocaTeach](https://discourse.julialang.org/u/ProvocaTeach)\
**Replies:** 0\
**Last updated:** [November 14, 2021, 6:59am UTC](https://discourse.julialang.org/t/how-to-serve-a-file-with-specific-mime-media-type-in-genie/71447 "2021-11-14T06:59:30Z")

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Hi all, I am still new to the Julia web stack – namely, the Genie and HTTP packages. I know that it is possible to serve an HTML file with media type text/html from, say, the root directory / using: route("/") do se…

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## [Code file generators examples](https://discourse.julialang.org/t/code-file-generators-examples/71415)

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**Author:** [@andrey2185](https://discourse.julialang.org/u/andrey2185)\
**Replies:** 1\
**Last updated:** [November 14, 2021, 5:46am UTC](https://discourse.julialang.org/t/code-file-generators-examples/71415 "2021-11-14T05:46:19Z")

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Hello, has anyone generated code files? Please give examples of packages. At first I tried on the basis of strings, then I began to create structures-models of code blocks, which is why I decided that it was better to …

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## [Giant components of graph](https://discourse.julialang.org/t/giant-components-of-graph/71361)

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**Author:** [@yusri-dh](https://discourse.julialang.org/u/yusri-dh)\
**Replies:** 2\
**Last updated:** [November 14, 2021, 12:08am UTC](https://discourse.julialang.org/t/giant-components-of-graph/71361 "2021-11-14T00:08:15Z")

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Dear all, Is there any function to get a subset of graph that have largest connected component using Graphs.jl (version \>= 1.4.1)? I only found function connected\_components that return a list of connected vertices? I…

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## [Print on a separate Blink window, or elsewhere than STOUT](https://discourse.julialang.org/t/print-on-a-separate-blink-window-or-elsewhere-than-stout/37014)

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**Author:** [@Dario\_Sarra](https://discourse.julialang.org/u/Dario_Sarra)\
**Replies:** 0\
**Last updated:** [April 4, 2020, 12:07pm UTC](https://discourse.julialang.org/t/print-on-a-separate-blink-window-or-elsewhere-than-stout/37014 "2020-04-04T12:07:45Z")

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I am writing UI using blink and Interact. I am fairly new to the use of tasks and CSS, so maybe my problem is actually fairly easy. During different operations, I use print to write messages such as “wait for…”, “all go…

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## [Blink.jl - Apply form data to a julia function](https://discourse.julialang.org/t/blink-jl-apply-form-data-to-a-julia-function/22155)

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**Author:** [@rna1990](https://discourse.julialang.org/u/rna1990)\
**Replies:** 0\
**Last updated:** [March 21, 2019, 5:02pm UTC](https://discourse.julialang.org/t/blink-jl-apply-form-data-to-a-julia-function/22155 "2019-03-21T17:02:02Z")

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Hi everyone, I made a function in julia which performs some routinary tasks automatically and it works just fine, but now I’m trying to build a really simple GUI (using Blink.jl) consisting only of a form for my collegu…

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## [Accented characters in vscode](https://discourse.julialang.org/t/accented-characters-in-vscode/53234)

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**Author:** [@Joris\_Pinkse](https://discourse.julialang.org/u/Joris_Pinkse)\
**Replies:** 22\
**Last updated:** [November 13, 2021, 5:52pm UTC](https://discourse.julialang.org/t/accented-characters-in-vscode/53234 "2021-11-13T17:52:39Z")

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In VScode, if I type θ \\hat tab then the hat comes after the θ but the variable is usable. θ̂ = 2.0 If instead I type \\hat tab θ I get the hat sitting on top of the θ but Julia gives an error. This issue is not speci…

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## [Problem with scatter plot of a dataframe](https://discourse.julialang.org/t/problem-with-scatter-plot-of-a-dataframe/71431)

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**Author:** [@dodoplus](https://discourse.julialang.org/u/dodoplus)\
**Replies:** 1\
**Last updated:** [November 13, 2021, 3:15pm UTC](https://discourse.julialang.org/t/problem-with-scatter-plot-of-a-dataframe/71431 "2021-11-13T15:15:48Z")

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This code doesn’t plot anything: using Plots using DataFrames df = DataFrame(a=rand(30), b=rand(30), c=repeat(\["a", "b", "c"\], outer=10)); g = groupby(df, "c"); scatter() for (s, x) in pairs(g) scatter!(x\[!, "a"\], x…

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## [Julia 1.6.4 testing period](https://discourse.julialang.org/t/julia-1-6-4-testing-period/71430)

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**Author:** [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Replies:** 0\
**Last updated:** [November 13, 2021, 2:58pm UTC](https://discourse.julialang.org/t/julia-1-6-4-testing-period/71430 "2021-11-13T14:58:17Z")

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The release-1.6 branch on the Julia repository now contains the set of commits we’re planning to tag as v1.6.4, the fourth patch release in the 1.6 series. The list of commits included since v1.6.3 is available here . As…

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## [Training layers of a Flux model separately](https://discourse.julialang.org/t/training-layers-of-a-flux-model-separately/71342)

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**Author:** [@RedDocMD](https://discourse.julialang.org/u/RedDocMD)\
**Replies:** 1\
**Last updated:** [November 13, 2021, 2:47pm UTC](https://discourse.julialang.org/t/training-layers-of-a-flux-model-separately/71342 "2021-11-13T14:47:56Z")

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Suppose I have a model in Flux, which is a bunch of layers that are stacked using Flux.chain. The training algorithm that I have trains layers individually. So would the following (simplified) code work? layers = \[Vect…

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## [Expression type identifier symbols](https://discourse.julialang.org/t/expression-type-identifier-symbols/71409)

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**Author:** [@andrey2185](https://discourse.julialang.org/u/andrey2185)\
**Replies:** 3\
**Last updated:** [November 13, 2021, 1:55pm UTC](https://discourse.julialang.org/t/expression-type-identifier-symbols/71409 "2021-11-13T13:55:29Z")

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hello, is there any documentation on expression type identifier symbols? except Metaprogramming · The Julia Language :call :kw :macrocall :quote …

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## [\[ANN\] ArgumentModes.jl - an implementation of set-of-symbols like type for function arguments](https://discourse.julialang.org/t/ann-argumentmodes-jl-an-implementation-of-set-of-symbols-like-type-for-function-arguments/71429)

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**Author:** [@Icarus](https://discourse.julialang.org/u/Icarus)\
**Replies:** 0\
**Last updated:** [November 13, 2021, 1:10pm UTC](https://discourse.julialang.org/t/ann-argumentmodes-jl-an-implementation-of-set-of-symbols-like-type-for-function-arguments/71429 "2021-11-13T13:10:36Z")

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I’d like to announce the package ArgumentModes.jl (also available in the registry) which provides type Mode for usage as a function argument type and in function calls. Conceptually it is similar to Val type, but working…

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## [How to choose a workstation for optimal performance](https://discourse.julialang.org/t/how-to-choose-a-workstation-for-optimal-performance/58035)

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**Author:** [@drarnau](https://discourse.julialang.org/u/drarnau)\
**Replies:** 51\
**Last updated:** [November 13, 2021, 1:07pm UTC](https://discourse.julialang.org/t/how-to-choose-a-workstation-for-optimal-performance/58035 "2021-11-13T13:07:17Z")

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Hello, I am looking for some advice on how to choose a workstation. My budget is around $5000. I simulate structural economic models using Julia. My codes typically use big arrays (through which I iterate using for loo…

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## [How to work with type unstable functions?](https://discourse.julialang.org/t/how-to-work-with-type-unstable-functions/56389)

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**Author:** [@Skoffer](https://discourse.julialang.org/u/Skoffer)\
**Replies:** 2\
**Last updated:** [November 12, 2021, 3:47pm UTC](https://discourse.julialang.org/t/how-to-work-with-type-unstable-functions/56389 "2021-11-12T15:47:37Z")

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The question is: consider that I have a function, which is by the nature of the problem should return a heterogeneous result. Is there any way, approach, or design ideas, how to build a workflow that can work with these …

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## [A stack of inverse matrices calculation when comparing to python](https://discourse.julialang.org/t/a-stack-of-inverse-matrices-calculation-when-comparing-to-python/71318)

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**Author:** [@Fesh](https://discourse.julialang.org/u/Fesh)\
**Replies:** 8\
**Last updated:** [November 13, 2021, 9:54am UTC](https://discourse.julialang.org/t/a-stack-of-inverse-matrices-calculation-when-comparing-to-python/71318 "2021-11-13T09:54:03Z")

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When using pyjulia to compute a stack of inverse matrices, I find it’s slower than directly using numpy.linalg.inv. But this shows using julia is faster than using python. This makes me confused. Here is my julia script…

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## [Can I save ODESystem separately and call it every time I need?](https://discourse.julialang.org/t/can-i-save-odesystem-separately-and-call-it-every-time-i-need/70872)

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**Author:** [@shaurya](https://discourse.julialang.org/u/shaurya)\
**Replies:** 6\
**Last updated:** [November 13, 2021, 10:08am UTC](https://discourse.julialang.org/t/can-i-save-odesystem-separately-and-call-it-every-time-i-need/70872 "2021-11-13T10:08:56Z")

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Hi! I am using ModelingToolkit to build a symbolic ODESystem of 13 vector equations. However, the system is unusually large and therefore, takes a lot of time to compute every time I run the code, which is not required.…

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## [Allow package names in tags](https://discourse.julialang.org/t/allow-package-names-in-tags/71408)

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**Author:** [@jzr](https://discourse.julialang.org/u/jzr)\
**Replies:** 3\
**Last updated:** [November 13, 2021, 9:31am UTC](https://discourse.julialang.org/t/allow-package-names-in-tags/71408 "2021-11-13T09:31:23Z")

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I want to tag my questions with the name of the package I’m asking about I want to follow the tags of some packages Currently it is not possible to use the name of a package as a tag because dots are not allowed, e.g…

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## [\[ANN\] Dash.jl v1.1.0 released](https://discourse.julialang.org/t/ann-dash-jl-v1-1-0-released/71422)

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**Author:** [@waralex](https://discourse.julialang.org/u/waralex)\
**Replies:** 0\
**Last updated:** [November 13, 2021, 9:25am UTC](https://discourse.julialang.org/t/ann-dash-jl-v1-1-0-released/71422 "2021-11-13T09:25:49Z")

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Hi all! Dash.jl version 1.1.0 is released Starting from version 1.0.0, the main components (DashCoreComponents, DashHtmlComponents, DashTable) are integrated into the main package, so the user no longer needs to add it…

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## [Cannot use the Collections module](https://discourse.julialang.org/t/cannot-use-the-collections-module/71325)

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**Author:** [@hexolio](https://discourse.julialang.org/u/hexolio)\
**Replies:** 16\
**Last updated:** [November 13, 2021, 9:22am UTC](https://discourse.julialang.org/t/cannot-use-the-collections-module/71325 "2021-11-13T09:22:39Z")

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I’m trying to create a heap: h = Collections.heapify(\[1\]) But I get this error: “UndefVarError: Collections not defined”. I’m using Julia version 1.6.3.

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## [Retworkx: new, high-performance Python graph library](https://discourse.julialang.org/t/retworkx-new-high-performance-python-graph-library/71109)

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**Author:** [@jlapeyre](https://discourse.julialang.org/u/jlapeyre)\
**Replies:** 14\
**Last updated:** [November 13, 2021, 4:51am UTC](https://discourse.julialang.org/t/retworkx-new-high-performance-python-graph-library/71109 "2021-11-13T04:51:34Z")

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retworkx is a python library wrapping the petgraph Rust library. (Actually, retworkx itself has a pure-Rust layer enhancing petgraph). retworkx is a strong contender for Most Performant Python Graph Library. Development…

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## [How to give a valid uuid to an existing package and how to "desactivate" an environment?](https://discourse.julialang.org/t/how-to-give-a-valid-uuid-to-an-existing-package-and-how-to-desactivate-an-environment/19236)

<div class="topic-metadata">

**Author:** [@Olivier\_Merchiers](https://discourse.julialang.org/u/Olivier_Merchiers)\
**Replies:** 10\
**Last updated:** [November 13, 2021, 4:50am UTC](https://discourse.julialang.org/t/how-to-give-a-valid-uuid-to-an-existing-package-and-how-to-desactivate-an-environment/19236 "2021-11-13T04:50:52Z")

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Hello and a happy new year to everyone, I have two simple questions concerning the basic use of Pkg. Browsing the forum I found some topics discussing those issues, but I could not really understand the answers. I woul…

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## [Compiling and leaving it alone until we decide to change?](https://discourse.julialang.org/t/compiling-and-leaving-it-alone-until-we-decide-to-change/63246)

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**Author:** [@skypuppy](https://discourse.julialang.org/u/skypuppy)\
**Replies:** 9\
**Last updated:** [November 13, 2021, 4:45am UTC](https://discourse.julialang.org/t/compiling-and-leaving-it-alone-until-we-decide-to-change/63246 "2021-11-13T04:45:04Z")

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Would be extremely nice if we can finalize our program, run it so that llvm will compile it, THEN save that compile as a standalone executable. Let the programmer decide if it needs to be compiled Every Single Time it’s…

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## [Help Accelerate Brain Science at Beacon Biosignals (+ Series A Announcement!)](https://discourse.julialang.org/t/help-accelerate-brain-science-at-beacon-biosignals-series-a-announcement/71171)

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**Author:** [@jrevels](https://discourse.julialang.org/u/jrevels)\
**Replies:** 2\
**Last updated:** [November 13, 2021, 2:12am UTC](https://discourse.julialang.org/t/help-accelerate-brain-science-at-beacon-biosignals-series-a-announcement/71171 "2021-11-13T02:12:41Z")

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We founded Beacon Biosignals in 2019 with Julia at the heart of our platform for high-throughput EEG biomarker discovery. A couple of years and ~100TBs of clinical data later, I’m happy to announce our Series A funding! …

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## [\[ANN\] A new package Jinja.jl - Template Engine for JuliaLang](https://discourse.julialang.org/t/ann-a-new-package-jinja-jl-template-engine-for-julialang/71412)

<div class="topic-metadata">

**Author:** [@QGMW22](https://discourse.julialang.org/u/QGMW22)\
**Replies:** 5\
**Last updated:** [November 13, 2021, 1:46am UTC](https://discourse.julialang.org/t/ann-a-new-package-jinja-jl-template-engine-for-julialang/71412 "2021-11-13T01:46:46Z")

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I’m grad to announce that I released the Jinja(Also, this is my first time to post here). Jinja is the template engine for JuliaLang. features Very very small! There are no dependency. You can write a Julia code direc…

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## [ERROR: Unsatisfiable requirements detected for package HDF5 \[f67ccb44\]](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-hdf5-f67ccb44/71404)

<div class="topic-metadata">

**Author:** [@Jing\_Zhang](https://discourse.julialang.org/u/Jing_Zhang)\
**Replies:** 3\
**Last updated:** [November 13, 2021, 12:19am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-hdf5-f67ccb44/71404 "2021-11-13T00:19:56Z")

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I tried to \]rm HDF5 and then \]add HDF5. But here is what it showed Can anyone help on this? Thank you so much!

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