# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1614

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

**Page:** 1615

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## [\[ANN\] ControlSystemIdentification](https://discourse.julialang.org/t/ann-controlsystemidentification/34811)

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**Author:** [@baggepinnen](https://discourse.julialang.org/u/baggepinnen)\
**Replies:** 3\
**Last updated:** [October 2, 2020, 5:56am UTC](https://discourse.julialang.org/t/ann-controlsystemidentification/34811 "2020-10-02T05:56:48Z")

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ControlSystemIdentification This package has been around for a while but has never been announced here. ControlSystemIdentification.jl aims to be similar in scope to Ljung’s System Identification Toolbox in Matlab, impl…

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## [GeometricFlux: GCNConv but with different graphs](https://discourse.julialang.org/t/geometricflux-gcnconv-but-with-different-graphs/36518)

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**Author:** [@rkurchin](https://discourse.julialang.org/u/rkurchin)\
**Replies:** 12\
**Last updated:** [October 2, 2020, 5:08am UTC](https://discourse.julialang.org/t/geometricflux-gcnconv-but-with-different-graphs/36518 "2020-10-02T05:08:24Z")

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I’m working with GeometricFlux and want to adapt the GCNConv layer to allow for different adjacency matrices corresponding to each piece of training data. Since this now requires two separate “streams” of input data (the…

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## [Exploring a model?](https://discourse.julialang.org/t/exploring-a-model/47472)

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**Author:** [@amca01](https://discourse.julialang.org/u/amca01)\
**Replies:** 5\
**Last updated:** [October 2, 2020, 4:37am UTC](https://discourse.julialang.org/t/exploring-a-model/47472 "2020-10-02T04:37:21Z")

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I have been investigating JuMP (with optimizers CBC, CLP, and GLPK) for linear models. I can obtain the values of the decision variables, the optimum of the objective function, the shadow prices of the binding constrain…

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## [Has any attempt been made to transpile Julia to JS?](https://discourse.julialang.org/t/has-any-attempt-been-made-to-transpile-julia-to-js/47386)

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**Author:** [@PetrKryslUCSD](https://discourse.julialang.org/u/PetrKryslUCSD)\
**Replies:** 12\
**Last updated:** [October 2, 2020, 4:25am UTC](https://discourse.julialang.org/t/has-any-attempt-been-made-to-transpile-julia-to-js/47386 "2020-10-02T04:25:51Z")

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Are there plans to do so? I think it may open up new horizons: web UIs, …

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## [\[ANN\] ColoredLLCodes: syntax highlighting for \`code\_llvm\` and \`code\_native\`](https://discourse.julialang.org/t/ann-coloredllcodes-syntax-highlighting-for-code-llvm-and-code-native/44739)

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**Author:** [@kimikage](https://discourse.julialang.org/u/kimikage)\
**Replies:** 1\
**Last updated:** [October 2, 2020, 3:14am UTC](https://discourse.julialang.org/t/ann-coloredllcodes-syntax-highlighting-for-code-llvm-and-code-native/44739 "2020-10-02T03:14:34Z")

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Hi all, I’m happy to announce ColoredLLCodes.jl, a syntax highlighter for code\_llvm and code\_native 100% in Julia. All you have to do is install and load the package. This package started from Why are \`code\_llvm\` a…

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## [No changes with Flux NN regression training](https://discourse.julialang.org/t/no-changes-with-flux-nn-regression-training/47490)

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**Author:** [@dmoored4](https://discourse.julialang.org/u/dmoored4)\
**Replies:** 2\
**Last updated:** [October 2, 2020, 3:03am UTC](https://discourse.julialang.org/t/no-changes-with-flux-nn-regression-training/47490 "2020-10-02T03:03:40Z")

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Problem Description Hi all, I’m having trouble using Flux to learn a non-linear function of two independent variables, x1 and x2. Everything is running, but I have a feeling that the parameters aren’t actually being upda…

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## [BUG Plots; pgfplotsx using twinx() ofsets the dates](https://discourse.julialang.org/t/bug-plots-pgfplotsx-using-twinx-ofsets-the-dates/47580)

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**Author:** [@JosephPollacco](https://discourse.julialang.org/u/JosephPollacco)\
**Replies:** 2\
**Last updated:** [October 1, 2020, 8:32pm UTC](https://discourse.julialang.org/t/bug-plots-pgfplotsx-using-twinx-ofsets-the-dates/47580 "2020-10-01T20:32:57Z")

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Hi, I am using Plots;pgfplotsx() and the twinx() functionality and I want to report a bug that the dates are offset the dates as it can be seen in the figure. It will be great if this bug can be fixt. DateTick=cl…

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## [Capture call environment in Weave.jl?](https://discourse.julialang.org/t/capture-call-environment-in-weave-jl/47616)

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**Author:** [@conditionality](https://discourse.julialang.org/u/conditionality)\
**Replies:** 2\
**Last updated:** [October 1, 2020, 8:28pm UTC](https://discourse.julialang.org/t/capture-call-environment-in-weave-jl/47616 "2020-10-01T20:28:49Z")

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I have some code that computes a bunch of statistics and I would like to compile all of those statistics into a report. I could manually construct such a report.html file by printing plots and data to the file, but I ima…

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## [WAIC, or LOO etc in Turing?](https://discourse.julialang.org/t/waic-or-loo-etc-in-turing/30873)

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**Author:** [@aammd](https://discourse.julialang.org/u/aammd)\
**Replies:** 11\
**Last updated:** [October 1, 2020, 8:16pm UTC](https://discourse.julialang.org/t/waic-or-loo-etc-in-turing/30873 "2020-10-01T20:16:19Z")

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Hello everyone, I was wondering if any of the popular model selection criteria have been implemented in Turing? for example WAIC or LOO, etc? I am surprised that I can’t find mention of these in this forum or in the doc…

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## [Problems when comparing Int16 and Int64](https://discourse.julialang.org/t/problems-when-comparing-int16-and-int64/47615)

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**Author:** [@andrey2185](https://discourse.julialang.org/u/andrey2185)\
**Replies:** 2\
**Last updated:** [October 1, 2020, 7:29pm UTC](https://discourse.julialang.org/t/problems-when-comparing-int16-and-int64/47615 "2020-10-01T19:29:48Z")

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Hello, why did this happen? julia\> Int16(200) == 200 true julia\> Int16(200) !== 200 true

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## [Package for cell (morphological) profiling](https://discourse.julialang.org/t/package-for-cell-morphological-profiling/47500)

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**Author:** [@koalive](https://discourse.julialang.org/u/koalive)\
**Replies:** 3\
**Last updated:** [October 1, 2020, 5:34pm UTC](https://discourse.julialang.org/t/package-for-cell-morphological-profiling/47500 "2020-10-01T17:34:09Z")

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Hi there. I am currently working on a package compiling useful tools and structures for handling morphological profiles: https://github.com/menchelab/RMP.jl Concretely, part of my research work involves High Content S…

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## [Choosing the "best" sampler](https://discourse.julialang.org/t/choosing-the-best-sampler/47605)

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**Author:** [@mcql](https://discourse.julialang.org/u/mcql)\
**Replies:** 1\
**Last updated:** [October 1, 2020, 4:50pm UTC](https://discourse.julialang.org/t/choosing-the-best-sampler/47605 "2020-10-01T16:50:01Z")

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Hello, I would like to know how shoud I choose the sampler given a model (using the Turing framework). I haven’t found information in the official guide. Could you suggest me something to read about that related to th…

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## [Unable to install IJulia](https://discourse.julialang.org/t/unable-to-install-ijulia/47160)

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**Author:** [@Nicholas\_Kyriacou](https://discourse.julialang.org/u/Nicholas_Kyriacou)\
**Replies:** 11\
**Last updated:** [October 1, 2020, 4:14pm UTC](https://discourse.julialang.org/t/unable-to-install-ijulia/47160 "2020-10-01T16:14:56Z")

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I have installed the latest version of Julia (1.5.1) on my widows browser successfully and am now trying to create the IJulia notebook functionality. I ran the following commands: Import Pkg which works ok, however when …

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## [Help understanding an anonymous function](https://discourse.julialang.org/t/help-understanding-an-anonymous-function/47591)

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**Author:** [@psabela](https://discourse.julialang.org/u/psabela)\
**Replies:** 5\
**Last updated:** [October 1, 2020, 1:20pm UTC](https://discourse.julialang.org/t/help-understanding-an-anonymous-function/47591 "2020-10-01T13:20:35Z")

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I am reviewing someone else’s code and came across this anonymous functions. Could you please help me understand: (1) when it is executed and how it is called, and (2) the syntax why there is “(token)” the second type…

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## [What IDE do you use?](https://discourse.julialang.org/t/what-ide-do-you-use/47006)

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**Author:** [@MathMan](https://discourse.julialang.org/u/MathMan)\
**Replies:** 55\
**Last updated:** [October 1, 2020, 12:35pm UTC](https://discourse.julialang.org/t/what-ide-do-you-use/47006 "2020-10-01T12:35:30Z")

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Just because I am curious: What IDEs are you using to code with Julia? Since debugging (setting breakpoints, observing variables etc.) is mandatory for code development, I am woundering how you do this. I started with v…

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## [Julia equivalent to Python's int.to\_bytes](https://discourse.julialang.org/t/julia-equivalent-to-pythons-int-to-bytes/44038)

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**Author:** [@louie4825](https://discourse.julialang.org/u/louie4825)\
**Replies:** 14\
**Last updated:** [October 1, 2020, 11:56am UTC](https://discourse.julialang.org/t/julia-equivalent-to-pythons-int-to-bytes/44038 "2020-10-01T11:56:08Z")

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Hi everyone :\> I’ve been using Julia the past few days, and so far I’ve been enjoying it. I’ve been trying to replicate Python functionality as a little exercise in Julia, but now I’m getting stuck on Python’s int.to\_by…

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## [Revise.jl and PackageCompiler.jl are not compatible?](https://discourse.julialang.org/t/revise-jl-and-packagecompiler-jl-are-not-compatible/47567)

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**Author:** [@iHany](https://discourse.julialang.org/u/iHany)\
**Replies:** 6\
**Last updated:** [October 1, 2020, 12:09pm UTC](https://discourse.julialang.org/t/revise-jl-and-packagecompiler-jl-are-not-compatible/47567 "2020-10-01T12:09:54Z")

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This is an extension of the original question about Revise.jl. I found that Revise.jl doesn’t work when using PackageCompiler.jl as reported here. While compiling packages, even Revise.jl was not included. Anybody kno…

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## [Unexpected behaviour of include](https://discourse.julialang.org/t/unexpected-behaviour-of-include/47589)

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**Author:** [@jhbdiehl](https://discourse.julialang.org/u/jhbdiehl)\
**Replies:** 2\
**Last updated:** [October 1, 2020, 11:39am UTC](https://discourse.julialang.org/t/unexpected-behaviour-of-include/47589 "2020-10-01T11:39:13Z")

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pwd() and include() do not seem to agree on which working directory I am in. Using Julia 1.5 on VS code. I have a directory structure resembling ./FolderA/FolderB with my files being in FolderB. pwd() in the Julia REPL…

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## [Homework policy](https://discourse.julialang.org/t/homework-policy/2342)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 23\
**Last updated:** [October 1, 2020, 11:33am UTC](https://discourse.julialang.org/t/homework-policy/2342 "2020-10-01T11:33:53Z")

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There have been a few questions in the past few days which are most likely homework. As the language grows, more and more courses will adopt it, so it may be a good idea to formulate some kind of policy that aligns expec…

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## [Error installing (building) Reduce.jl](https://discourse.julialang.org/t/error-installing-building-reduce-jl/47414)

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**Author:** [@TheLateKronos](https://discourse.julialang.org/u/TheLateKronos)\
**Replies:** 5\
**Last updated:** [October 1, 2020, 10:56am UTC](https://discourse.julialang.org/t/error-installing-building-reduce-jl/47414 "2020-10-01T10:56:18Z")

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I am currently wanting to try Reduce.jl for symbolic stuff, but I am unable to build it. I have tried in different the standalone REPL and VSCode’s integrated terminal with a few hours apart. The attempts were also on s…

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## [Help for basic usage of @distributed for](https://discourse.julialang.org/t/help-for-basic-usage-of-distributed-for/31666)

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**Author:** [@Massimiliano\_Comin](https://discourse.julialang.org/u/Massimiliano_Comin)\
**Replies:** 1\
**Last updated:** [October 1, 2020, 9:27am UTC](https://discourse.julialang.org/t/help-for-basic-usage-of-distributed-for/31666 "2020-10-01T09:27:12Z")

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Hello, I have a computation that I want to perform several times for several realizations of disorder. For this I wrote a serial script doing only one computation, and a separate script that calls it and distributes the…

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## [How to get more info on w ∈ workers()](https://discourse.julialang.org/t/how-to-get-more-info-on-w-workers/34290)

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**Author:** [@healyp](https://discourse.julialang.org/u/healyp)\
**Replies:** 1\
**Last updated:** [October 1, 2020, 9:20am UTC](https://discourse.julialang.org/t/how-to-get-more-info-on-w-workers/34290 "2020-10-01T09:20:39Z")

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I’m getting the following error From worker 30: ErrorException("Process(30) - Invalid connection credentials sent by remote.")CapturedException(ErrorException("Process(30) - Invalid connection credentials sent by remote…

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## [Tab completion is not working in VS Code](https://discourse.julialang.org/t/tab-completion-is-not-working-in-vs-code/44580)

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**Author:** [@yarnabrina](https://discourse.julialang.org/u/yarnabrina)\
**Replies:** 7\
**Last updated:** [October 1, 2020, 8:50am UTC](https://discourse.julialang.org/t/tab-completion-is-not-working-in-vs-code/44580 "2020-10-01T08:50:41Z")

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Hi! I’m using Think Julia to learn Julia on my Windows 10 laptop using Visual Studio Code. I’m not using Atom+Juno as I’m much more familiar with VS Code. It is suggested in the book that pressing Tab after x\\^1 or x\\\_…

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## [VegaLite plot two lines and plot over](https://discourse.julialang.org/t/vegalite-plot-two-lines-and-plot-over/47570)

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**Author:** [@BMval](https://discourse.julialang.org/u/BMval)\
**Replies:** 1\
**Last updated:** [October 1, 2020, 8:06am UTC](https://discourse.julialang.org/t/vegalite-plot-two-lines-and-plot-over/47570 "2020-10-01T08:06:20Z")

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I am new with Vega-lite. Would you help me, just plot any two random lines on the one figure? Can I plot figure over another figure? something like @vlplot!() Thank you.

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## [Resources for writing a parser/lexer](https://discourse.julialang.org/t/resources-for-writing-a-parser-lexer/47355)

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**Author:** [@feanor12](https://discourse.julialang.org/u/feanor12)\
**Replies:** 6\
**Last updated:** [October 1, 2020, 7:55am UTC](https://discourse.julialang.org/t/resources-for-writing-a-parser-lexer/47355 "2020-10-01T07:55:27Z")

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Hi I have to write a parser for a simple Syntax and I was wondering if there are already resources to help me do that. Any hints are welcome. :wink: Example input: group=name { Section1 { key1 = value1 key2 = value2, …

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## [Partial compatibility bounds](https://discourse.julialang.org/t/partial-compatibility-bounds/47574)

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**Author:** [@cstjean](https://discourse.julialang.org/u/cstjean)\
**Replies:** 1\
**Last updated:** [October 1, 2020, 7:48am UTC](https://discourse.julialang.org/t/partial-compatibility-bounds/47574 "2020-10-01T07:48:03Z")

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We’ve been making slow progress towards a full private registry setup… We registered our packages We tagged all of them We put some compatibility bounds on some packages Am I right that step 3 is a terrible mistake? I…

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## [Should I turn on/off repeatedly to reflect changes of currently developing packages?](https://discourse.julialang.org/t/should-i-turn-on-off-repeatedly-to-reflect-changes-of-currently-developing-packages/47560)

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**Author:** [@iHany](https://discourse.julialang.org/u/iHany)\
**Replies:** 20\
**Last updated:** [October 1, 2020, 2:15am UTC](https://discourse.julialang.org/t/should-i-turn-on-off-repeatedly-to-reflect-changes-of-currently-developing-packages/47560 "2020-10-01T02:15:03Z")

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Hi, I’m developing my own packages. While developing my packages, I have to turn off Julia REPL and turn on again to reflect changes of the packages, which takes too long time. As in docs of Revise.jl, it looks that I …

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## [Collecting homogenized vectors: modify iterator vs modify collector](https://discourse.julialang.org/t/collecting-homogenized-vectors-modify-iterator-vs-modify-collector/42957)

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**Author:** [@BMO](https://discourse.julialang.org/u/BMO)\
**Replies:** 3\
**Last updated:** [September 30, 2020, 5:24pm UTC](https://discourse.julialang.org/t/collecting-homogenized-vectors-modify-iterator-vs-modify-collector/42957 "2020-09-30T17:24:38Z")

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Nemo is a computer algebra package for the Julia programming language. For a multivariated polynomial p there is an iterator exponent\_vectors(p) whose values are vectors corresponding to the exponents of the terms of p (…

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## [Problems copying data on the GPU](https://discourse.julialang.org/t/problems-copying-data-on-the-gpu/47518)

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**Author:** [@bmit](https://discourse.julialang.org/u/bmit)\
**Replies:** 8\
**Last updated:** [October 1, 2020, 6:22am UTC](https://discourse.julialang.org/t/problems-copying-data-on-the-gpu/47518 "2020-10-01T06:22:24Z")

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I’m having trouble with a basic copy operation on the GPU. My goal is to copy a chosen subset of data from an N-D array into a vector. My following two attempts have failed. using CUDA CUDA.allowscalar(false) a=CUDA.ran…

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## [Find minimum argument with custom comparator](https://discourse.julialang.org/t/find-minimum-argument-with-custom-comparator/47561)

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**Author:** [@timquelch](https://discourse.julialang.org/u/timquelch)\
**Replies:** 6\
**Last updated:** [October 1, 2020, 5:21am UTC](https://discourse.julialang.org/t/find-minimum-argument-with-custom-comparator/47561 "2020-10-01T05:21:56Z")

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I feel like something is missing from the available minimum functions. I’ve come across the issue multiple times where i want to get the value of a collection that gives the minimum value of a specified function. i.e. I …

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