# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1648

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

**Page:** 1649

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## [Plotly(JS) fails due to ORCA](https://discourse.julialang.org/t/plotly-js-fails-due-to-orca/45090)

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**Author:** [@omrilesser](https://discourse.julialang.org/u/omrilesser)\
**Replies:** 1\
**Last updated:** [August 26, 2020, 1:41pm UTC](https://discourse.julialang.org/t/plotly-js-fails-due-to-orca/45090 "2020-08-26T13:41:29Z")

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I’m trying to use Plots.jl with PlotlyJS for simple plotting, for example: using Plots plotlyjs() x = range(0,stop=1,length=100) y = x.^2 Plots.plot(x,y, legend=false, linecolor="red") This fails in the ORCA precompila…

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## [PlotlyJS/Orca.jl not installing properly](https://discourse.julialang.org/t/plotlyjs-orca-jl-not-installing-properly/30587)

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**Author:** [@Calum\_H](https://discourse.julialang.org/u/Calum_H)\
**Replies:** 1\
**Last updated:** [August 26, 2020, 1:38pm UTC](https://discourse.julialang.org/t/plotlyjs-orca-jl-not-installing-properly/30587 "2020-08-26T13:38:59Z")

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Hi all, Had some bizarre issues with Julia lately so decided to start from scratch and freshly re-install Julia v1.2 and all packages. Mostly things are working again now but for some reason it seems the installation of…

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## [Parallel testing](https://discourse.julialang.org/t/parallel-testing/45574)

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**Author:** [@kulowf](https://discourse.julialang.org/u/kulowf)\
**Replies:** 0\
**Last updated:** [August 26, 2020, 12:56pm UTC](https://discourse.julialang.org/t/parallel-testing/45574 "2020-08-26T12:56:48Z")

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parallel testing How i make parallel test for many testfunctions with separate outputs? The test sources use in many ways stdout, stderr. A redirect is for threads separatly not possible!? The example has only one testf…

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## [I am new to Julia, could someone help me to check the code?](https://discourse.julialang.org/t/i-am-new-to-julia-could-someone-help-me-to-check-the-code/45528)

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**Author:** [@MonteKpncto](https://discourse.julialang.org/u/MonteKpncto)\
**Replies:** 6\
**Last updated:** [August 26, 2020, 12:30pm UTC](https://discourse.julialang.org/t/i-am-new-to-julia-could-someone-help-me-to-check-the-code/45528 "2020-08-26T12:30:00Z")

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It is a square root language,

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## [Julia alternatives to SymPy?](https://discourse.julialang.org/t/julia-alternatives-to-sympy/45444)

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**Author:** [@derekmahar](https://discourse.julialang.org/u/derekmahar)\
**Replies:** 11\
**Last updated:** [August 26, 2020, 12:27pm UTC](https://discourse.julialang.org/t/julia-alternatives-to-sympy/45444 "2020-08-26T12:27:57Z")

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What are some alternatives to Python library SymPy implemented in Julia?

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## [(geometry)Rotating Calipers / Oriented Minimum Bounding Box?](https://discourse.julialang.org/t/geometry-rotating-calipers-oriented-minimum-bounding-box/44058)

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**Author:** [@anon92994695](https://discourse.julialang.org/u/anon92994695)\
**Replies:** 5\
**Last updated:** [August 26, 2020, 10:55am UTC](https://discourse.julialang.org/t/geometry-rotating-calipers-oriented-minimum-bounding-box/44058 "2020-08-26T10:55:50Z")

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Are there any implementations for, rotating calipers algorithm or any oriented minimum bounding box here in Julia? I could whip one up if not, but preferably one of you wizards has one out there somewhere.

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## [Can pyplot scatterplots take values smaller than 1e-16?](https://discourse.julialang.org/t/can-pyplot-scatterplots-take-values-smaller-than-1e-16/45438)

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**Author:** [@nicolas](https://discourse.julialang.org/u/nicolas)\
**Replies:** 5\
**Last updated:** [August 26, 2020, 8:28am UTC](https://discourse.julialang.org/t/can-pyplot-scatterplots-take-values-smaller-than-1e-16/45438 "2020-08-26T08:28:52Z")

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When running the following code, using Plots pyplot() x = exp.(randn(100) .- 36) y = exp.(randn(100) .- 36) plot(x,y, xscale = :log10, yscale = :log10, markershape = :square) The lines show perfectly, but funnily enoug…

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## [DataStructures.jl ArgumentError: invalid version range: "\>= 2020"](https://discourse.julialang.org/t/datastructures-jl-argumenterror-invalid-version-range-2020/45554)

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**Author:** [@fnbillimoria](https://discourse.julialang.org/u/fnbillimoria)\
**Replies:** 2\
**Last updated:** [August 26, 2020, 8:21am UTC](https://discourse.julialang.org/t/datastructures-jl-argumenterror-invalid-version-range-2020/45554 "2020-08-26T08:21:47Z")

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Hello, I am attempting to install DataStructures.jl and received the following error. Is there a broader issue I should be aware of? How do i install this package? (@JuliaPro\_v1.5.0-1) pkg\> add DataStructures Resol…

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## [Odd behaviour of operators on a range?](https://discourse.julialang.org/t/odd-behaviour-of-operators-on-a-range/45557)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 1\
**Last updated:** [August 26, 2020, 7:58am UTC](https://discourse.julialang.org/t/odd-behaviour-of-operators-on-a-range/45557 "2020-08-26T07:58:20Z")

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See the first two lines: Intuitively I would have expected it to return 1001:1010 for the plus and 1000:1000:10000 for the multiplication, that is with the range collected before the operation and eventually reimpleme…

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## [Observe stderr](https://discourse.julialang.org/t/observe-stderr/45533)

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**Author:** [@yakir12](https://discourse.julialang.org/u/yakir12)\
**Replies:** 5\
**Last updated:** [August 26, 2020, 7:03am UTC](https://discourse.julialang.org/t/observe-stderr/45533 "2020-08-26T07:03:44Z")

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Is there a way to have an observable containing a number (let’s say float) that updates on updates to stderr, but where the stderr is a string that contains in it the number to be pushed into the observable? So if I run…

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## [Return multiple values not in a tuple?](https://discourse.julialang.org/t/return-multiple-values-not-in-a-tuple/45234)

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**Author:** [@Gus\_Hart](https://discourse.julialang.org/u/Gus_Hart)\
**Replies:** 7\
**Last updated:** [August 26, 2020, 4:13am UTC](https://discourse.julialang.org/t/return-multiple-values-not-in-a-tuple/45234 "2020-08-26T04:13:26Z")

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I have a function that takes several arguments. I have another function that returns several values. I’d like the second function to be able to directly feed the first. But my attempt doesn’t work because multiple return…

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## [\[ANN\] DynamicAxisWarping.jl](https://discourse.julialang.org/t/ann-dynamicaxiswarping-jl/40146)

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**Author:** [@baggepinnen](https://discourse.julialang.org/u/baggepinnen)\
**Replies:** 5\
**Last updated:** [August 26, 2020, 4:05am UTC](https://discourse.julialang.org/t/ann-dynamicaxiswarping-jl/40146 "2020-08-26T04:05:04Z")

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I would like to announce DynamicAxisWarping.jl which provides a bunch of algorithms related to Dynamic Time Warping, such as DTW FastDTW SoftDTW (differentiable) Optimized nearest neighbor search Barycenter averaging D…

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## [BK tree (graph) search algorithm](https://discourse.julialang.org/t/bk-tree-graph-search-algorithm/45529)

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**Author:** [@mthelm85](https://discourse.julialang.org/u/mthelm85)\
**Replies:** 1\
**Last updated:** [August 25, 2020, 11:04pm UTC](https://discourse.julialang.org/t/bk-tree-graph-search-algorithm/45529 "2020-08-25T23:04:50Z")

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I’m attempting to implement BK trees via LightGraphs and SimpleWeightedGraphs and I’m struggling to figure out how to write a function (doesn’t work properly) to perform the search. I have a simple function that builds t…

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## [Creating a video from a stack of Images](https://discourse.julialang.org/t/creating-a-video-from-a-stack-of-images/646)

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**Author:** [@vchuravy](https://discourse.julialang.org/u/vchuravy)\
**Replies:** 11\
**Last updated:** [August 26, 2020, 12:51am UTC](https://discourse.julialang.org/t/creating-a-video-from-a-stack-of-images/646 "2020-08-26T00:51:07Z")

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VideoIO.jl only seems to have the capabilities of reading in video with ffmpeg. I couldn’t find any options to create a Video so I was wondering if I am missing something. I know @sdanisch is exporting to png files fir…

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## [VS Code Editor and Terminal on Separate Monitors](https://discourse.julialang.org/t/vs-code-editor-and-terminal-on-separate-monitors/45248)

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**Author:** [@Yifan\_Liu](https://discourse.julialang.org/u/Yifan_Liu)\
**Replies:** 8\
**Last updated:** [August 26, 2020, 12:19am UTC](https://discourse.julialang.org/t/vs-code-editor-and-terminal-on-separate-monitors/45248 "2020-08-26T00:19:42Z")

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My desktop uses three monitors. I was wondering if it is possible to make VS Code’s editor and terminal shown on separate monitors. This would allow me to focus on the editor area while being able to view results on the …

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## [Package version updates](https://discourse.julialang.org/t/package-version-updates/45532)

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**Author:** [@henry2004y](https://discourse.julialang.org/u/henry2004y)\
**Replies:** 3\
**Last updated:** [August 26, 2020, 12:03am UTC](https://discourse.julialang.org/t/package-version-updates/45532 "2020-08-26T00:03:25Z")

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Hi everyone, I have a question about package version and updates. For example, I am learning to use Makie now. On my Windows machine with Julia v1.4, the package is successfully installed with the current latest versio…

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## [ANN: Parallel \`for\` loops in FLoops.jl with composable and extensible fold-based API](https://discourse.julialang.org/t/ann-parallel-for-loops-in-floops-jl-with-composable-and-extensible-fold-based-api/45390)

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**Author:** [@tkf](https://discourse.julialang.org/u/tkf)\
**Replies:** 17\
**Last updated:** [August 25, 2020, 11:50pm UTC](https://discourse.julialang.org/t/ann-parallel-for-loops-in-floops-jl-with-composable-and-extensible-fold-based-api/45390 "2020-08-25T23:50:27Z")

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A while ago I posted FLoops.jl RFC that demonstrates alternative for loop framework on top of Transducers.jl. FLoops.jl lets users write fast for loops over complex data structures. Since it received quite positive rea…

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## [In place copying and duplication](https://discourse.julialang.org/t/in-place-copying-and-duplication/45535)

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**Author:** [@gideonsimpson](https://discourse.julialang.org/u/gideonsimpson)\
**Replies:** 5\
**Last updated:** [August 25, 2020, 10:16pm UTC](https://discourse.julialang.org/t/in-place-copying-and-duplication/45535 "2020-08-25T22:16:43Z")

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Suppose I have an instance of a nontrivial data structure x, of type mytype that I would like to copy over into a new instance of mytype, y, and I would like to do this in as efficient a manner as possible. If these wer…

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## [What do people think about the package mode being persistent?](https://discourse.julialang.org/t/what-do-people-think-about-the-package-mode-being-persistent/45527)

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**Author:** [@PetrKryslUCSD](https://discourse.julialang.org/u/PetrKryslUCSD)\
**Replies:** 13\
**Last updated:** [August 25, 2020, 9:44pm UTC](https://discourse.julialang.org/t/what-do-people-think-about-the-package-mode-being-persistent/45527 "2020-08-25T21:44:53Z")

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The package mode is persistent. Once you hit \] Julia is in package mode until one hits the backspace. I find that a bit annoying at times. Especially when I do something in package mode, forget about it, and then try to…

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## [I am new to Julia, I tried to write square root program. I still can not figure out whats wrong](https://discourse.julialang.org/t/i-am-new-to-julia-i-tried-to-write-square-root-program-i-still-can-not-figure-out-whats-wrong/45526)

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**Author:** [@MonteKpncto](https://discourse.julialang.org/u/MonteKpncto)\
**Replies:** 1\
**Last updated:** [August 25, 2020, 6:28pm UTC](https://discourse.julialang.org/t/i-am-new-to-julia-i-tried-to-write-square-root-program-i-still-can-not-figure-out-whats-wrong/45526 "2020-08-25T18:28:53Z")

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ERROR: syntax: extra token “r” after end of expression Stacktrace: \[1\] top-level scope at REPL\[68\]:1 \[2\] include\_string(::Function, ::Module, ::String, ::String) at .\\loading.jl:1088

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## [Number of threads available seems random (using @spawn)](https://discourse.julialang.org/t/number-of-threads-available-seems-random-using-spawn/44594)

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**Author:** [@lmiq](https://discourse.julialang.org/u/lmiq)\
**Replies:** 19\
**Last updated:** [August 25, 2020, 6:02pm UTC](https://discourse.julialang.org/t/number-of-threads-available-seems-random-using-spawn/44594 "2020-08-25T18:02:01Z")

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I am trying to use @spawn to parallelize a computation, but I am experiencing some problems which I do not understand. Here is the simplest code with which I could reproduce the issue: using Dates function f() s = 0.…

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## [Role in Sydney Australia](https://discourse.julialang.org/t/role-in-sydney-australia/45487)

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**Author:** [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Replies:** 1\
**Last updated:** [August 25, 2020, 5:27pm UTC](https://discourse.julialang.org/t/role-in-sydney-australia/45487 "2020-08-25T17:27:51Z")

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Found this on seek https://www.seek.com.au/job/50318171?type=standard#searchRequestToken=b76c82c2-4ef3-46ae-8ec6-5b4d586afed2

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## [Major updates coming to HDF5.jl, request for changes before release](https://discourse.julialang.org/t/major-updates-coming-to-hdf5-jl-request-for-changes-before-release/45514)

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**Author:** [@musm](https://discourse.julialang.org/u/musm)\
**Replies:** 2\
**Last updated:** [August 25, 2020, 5:21pm UTC](https://discourse.julialang.org/t/major-updates-coming-to-hdf5-jl-request-for-changes-before-release/45514 "2020-08-25T17:21:46Z")

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Hi all, We are planning on making a new major release over at GitHub - JuliaIO/HDF5.jl: Save and load data in the HDF5 file format from Julia . This is a results of several contributors making vastly needed upgrades (b…

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## [\[ANN\] Turing.jl 0.14.0](https://discourse.julialang.org/t/ann-turing-jl-0-14-0/45520)

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**Author:** [@cpfiffer](https://discourse.julialang.org/u/cpfiffer)\
**Replies:** 0\
**Last updated:** [August 25, 2020, 5:16pm UTC](https://discourse.julialang.org/t/ann-turing-jl-0-14-0/45520 "2020-08-25T17:16:47Z")

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Hey folks, It’s been a while since our last release, which we’re hoping to avoid entirely. The Turing-verse is mostly adapting Colprac going forward, which means we’ll be flagging releases much more frequently to keep u…

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## [How to pass test arguments using the REPL](https://discourse.julialang.org/t/how-to-pass-test-arguments-using-the-repl/45507)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 3\
**Last updated:** [August 25, 2020, 5:01pm UTC](https://discourse.julialang.org/t/how-to-pass-test-arguments-using-the-repl/45507 "2020-08-25T17:01:08Z")

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How do I convert julia\> Pkg.test("BetaML"; test\_args = \["all"\]) to something like: (@v1.5) pkg\> test BetaML --test\_args = \["all"\] (that now returns ERROR: Unable to parse \`--test\_args\` as a package.) ?

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## [Compiling a portable shared lib with PackageCompiler](https://discourse.julialang.org/t/compiling-a-portable-shared-lib-with-packagecompiler/45513)

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**Author:** [@ExpandingMan](https://discourse.julialang.org/u/ExpandingMan)\
**Replies:** 2\
**Last updated:** [August 25, 2020, 4:17pm UTC](https://discourse.julialang.org/t/compiling-a-portable-shared-lib-with-packagecompiler/45513 "2020-08-25T16:17:27Z")

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So, I’m in a situation at work where I’m trying to build a docker image to run on the “AWS Batch” service (it just runs docker containers), preferably with a compiled system image from PackageCompiler. My docker images …

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## [WGLMakie: set AbstractPlotting.inline!(true) to false](https://discourse.julialang.org/t/wglmakie-set-abstractplotting-inline-true-to-false/45510)

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**Author:** [@HerAdri](https://discourse.julialang.org/u/HerAdri)\
**Replies:** 0\
**Last updated:** [August 25, 2020, 3:50pm UTC](https://discourse.julialang.org/t/wglmakie-set-abstractplotting-inline-true-to-false/45510 "2020-08-25T15:50:48Z")

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I want to set set AbstractPlotting.inline!(true) to false Julia\> AbstractPlotting.arrows!(pts, ∇ˢF, arrowsize = 0.03, linecolor = (:white, 0.6), linewidth = 3) ┌ Warning: Showing scene as text. This happens because \`Abs…

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## [Julia got in the "most loved languages" of the StackOverflow Survey](https://discourse.julialang.org/t/julia-got-in-the-most-loved-languages-of-the-stackoverflow-survey/45260)

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**Author:** [@natema](https://discourse.julialang.org/u/natema)\
**Replies:** 26\
**Last updated:** [August 25, 2020, 3:15pm UTC](https://discourse.julialang.org/t/julia-got-in-the-most-loved-languages-of-the-stackoverflow-survey/45260 "2020-08-25T15:15:53Z")

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One of the thing which was keeping me hesitant in starting learning Julia few months ago was the fact that it was not mentioned in StackOverflow’s 2019 survey. The situation changed a lot with this year’s survey. That’…

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## [Best way to create a wrapper for C library for Continuous version of Tensor Train](https://discourse.julialang.org/t/best-way-to-create-a-wrapper-for-c-library-for-continuous-version-of-tensor-train/45479)

<div class="topic-metadata">

**Author:** [@mleprovost](https://discourse.julialang.org/u/mleprovost)\
**Replies:** 3\
**Last updated:** [August 25, 2020, 3:14pm UTC](https://discourse.julialang.org/t/best-way-to-create-a-wrapper-for-c-library-for-continuous-version-of-tensor-train/45479 "2020-08-25T15:14:55Z")

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Hello, I would like to create a wrapper for the C library https://github.com/goroda/Compressed-Continuous-Computation that implements a low-rank approximation of multi-dimensional functions in the same spirit as ApproxF…

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## [Question about Julia sparse matrices design decisions](https://discourse.julialang.org/t/question-about-julia-sparse-matrices-design-decisions/45488)

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**Author:** [@orenbenkiki](https://discourse.julialang.org/u/orenbenkiki)\
**Replies:** 3\
**Last updated:** [August 25, 2020, 3:02pm UTC](https://discourse.julialang.org/t/question-about-julia-sparse-matrices-design-decisions/45488 "2020-08-25T15:02:42Z")

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I understand that Julia made the decision to support only a single sparse matrix format (in the standard library, anyway) - CSC (compressed sparse column). I tried searching and couldn’t find any discussion of why this …

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