# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1127

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

**Page:** 1128

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## [\[ANN\] Pasteee.jl: Julia wrapper for Paste.ee](https://discourse.julialang.org/t/ann-pasteee-jl-julia-wrapper-for-paste-ee/75874)

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**Author:** [@e3c6](https://discourse.julialang.org/u/e3c6)\
**Replies:** 2\
**Last updated:** [February 9, 2022, 12:19am UTC](https://discourse.julialang.org/t/ann-pasteee-jl-julia-wrapper-for-paste-ee/75874 "2022-02-09T00:19:19Z")

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Hi again, I’m now registering Pasteee.jl, a simple Julia wrapper around the Paste.ee API: https://github.com/cossio/Pasteee.jl It is registered. See the docs here: Home · Pasteee.jl. Paste.ee is a Pastebin alternative…

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## [For which Julia YT video you want timestamps?](https://discourse.julialang.org/t/for-which-julia-yt-video-you-want-timestamps/75948)

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**Author:** [@KZiemian](https://discourse.julialang.org/u/KZiemian)\
**Replies:** 1\
**Last updated:** [February 9, 2022, 12:13am UTC](https://discourse.julialang.org/t/for-which-julia-yt-video-you-want-timestamps/75948 "2022-02-09T00:13:36Z")

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From the December last year I’m quite involved in watching videos from Julia YouTube channel and making timestamps along the way. I try to make at least one longer (20 minutes or more) and two short (under 10 minutes) vi…

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## [Propositions for edition of videos on Julia YT channel](https://discourse.julialang.org/t/propositions-for-edition-of-videos-on-julia-yt-channel/75030)

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**Author:** [@KZiemian](https://discourse.julialang.org/u/KZiemian)\
**Replies:** 4\
**Last updated:** [February 9, 2022, 12:06am UTC](https://discourse.julialang.org/t/propositions-for-edition-of-videos-on-julia-yt-channel/75030 "2022-02-09T00:06:48Z")

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After watching quite a few videos on Julia YT’s channel can be more watcher friendly if there will be edited in better way. Since thread about talks from JuliaCon 2019 is already quite long, I decided to put few suggesti…

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## [SSH extension for VSCode](https://discourse.julialang.org/t/ssh-extension-for-vscode/71290)

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**Author:** [@Avec](https://discourse.julialang.org/u/Avec)\
**Replies:** 9\
**Last updated:** [February 8, 2022, 10:48pm UTC](https://discourse.julialang.org/t/ssh-extension-for-vscode/71290 "2022-02-08T22:48:02Z")

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Hi, I was succesfully using SSH extension in VSCode to code in julia on a remote machine, but it broke down without any obvious reason. When I start start the VScode and connect to the server, everything loads as usual,…

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## [Multiple dispatch in mathematical writing](https://discourse.julialang.org/t/multiple-dispatch-in-mathematical-writing/75959)

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**Author:** [@lrnv](https://discourse.julialang.org/u/lrnv)\
**Replies:** 25\
**Last updated:** [February 8, 2022, 8:00pm UTC](https://discourse.julialang.org/t/multiple-dispatch-in-mathematical-writing/75959 "2022-02-08T20:00:31Z")

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Hey, I have been coding almost exclusively in Julia for a while, and i noticed a strange habit in my mathematical writing that was not there before: I start to use overloading and multiple dispatches everywhere. My revi…

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## [Antisymmetric matrices?](https://discourse.julialang.org/t/antisymmetric-matrices/75829)

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**Author:** [@akriegman](https://discourse.julialang.org/u/akriegman)\
**Replies:** 4\
**Last updated:** [February 5, 2022, 10:14pm UTC](https://discourse.julialang.org/t/antisymmetric-matrices/75829 "2022-02-05T22:14:57Z")

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The LinearAlgebra module in the standard library has several special matrix types which represent various sparse matrix types, like symmetric or upper-triangular. This allows for reduced memory usage as you can avoid sto…

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## [Julia for Talented Amateurs Youtube Channel](https://discourse.julialang.org/t/julia-for-talented-amateurs-youtube-channel/75878)

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**Author:** [@TI36XPro](https://discourse.julialang.org/u/TI36XPro)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 6:58pm UTC](https://discourse.julialang.org/t/julia-for-talented-amateurs-youtube-channel/75878 "2022-02-08T18:58:43Z")

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I have been reading and searching (repeat) for Julia resources in the intermediate to advanced range but also materials covering things like Julia internals. I heard about this youtube channel while listening to the Tal…

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## [JuliaUserGroupMunich: Fall-in-love-with-julia on Graphs.jl](https://discourse.julialang.org/t/juliausergroupmunich-fall-in-love-with-julia-on-graphs-jl/74760)

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**Author:** [@schlichtanders](https://discourse.julialang.org/u/schlichtanders)\
**Replies:** 5\
**Last updated:** [February 8, 2022, 6:36pm UTC](https://discourse.julialang.org/t/juliausergroupmunich-fall-in-love-with-julia-on-graphs-jl/74760 "2022-02-08T18:36:20Z")

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Join us on :spiral\_calendar: Monday 07. February 2022 :clock630: 18:30 CET organized via meetup Fall in love with Julia: Graph data in Julia with Graphs.jl 101 ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ Hi all, this is an introdu…

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## [Plot recipe for existing series type and own type](https://discourse.julialang.org/t/plot-recipe-for-existing-series-type-and-own-type/23902)

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**Author:** [@moesphere](https://discourse.julialang.org/u/moesphere)\
**Replies:** 4\
**Last updated:** [February 8, 2022, 6:33pm UTC](https://discourse.julialang.org/t/plot-recipe-for-existing-series-type-and-own-type/23902 "2022-02-08T18:33:26Z")

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I am slightly confused how to properly add a plot recipe for a corrplot of an own-defined type. Suppose that I have defined the following type struct MyType x::DataFrame end I would now like to have a corrplot for cer…

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## [How to obtain literal value of colors from the color cycle in Makie.jl?](https://discourse.julialang.org/t/how-to-obtain-literal-value-of-colors-from-the-color-cycle-in-makie-jl/75413)

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**Author:** [@Datseris](https://discourse.julialang.org/u/Datseris)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 4:10pm UTC](https://discourse.julialang.org/t/how-to-obtain-literal-value-of-colors-from-the-color-cycle-in-makie-jl/75413 "2022-02-08T16:10:43Z")

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How to I obtain the n -th color of the color cycle in literal value? I know I can do Cycled(n) , but how do I get its value? Like "#abcdefg" or whatever it is.

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## [Gradient of a gradient of a FastChain](https://discourse.julialang.org/t/gradient-of-a-gradient-of-a-fastchain/73876)

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**Author:** [@mahdiar](https://discourse.julialang.org/u/mahdiar)\
**Replies:** 19\
**Last updated:** [February 8, 2022, 3:58pm UTC](https://discourse.julialang.org/t/gradient-of-a-gradient-of-a-fastchain/73876 "2022-02-08T15:58:28Z")

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What is the best way to differentiate an artificial neural network built by FastChain? The objective is to make a gradient of a neural network output with respect to its output. The result should be differentiable. Her…

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## [MethodError in For loop](https://discourse.julialang.org/t/methoderror-in-for-loop/75981)

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**Author:** [@Damiano](https://discourse.julialang.org/u/Damiano)\
**Replies:** 3\
**Last updated:** [February 8, 2022, 3:52pm UTC](https://discourse.julialang.org/t/methoderror-in-for-loop/75981 "2022-02-08T15:52:59Z")

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This is my first post ever in this forum. I think that I have read all the relevant instructions on how to post. Still, if I am missing something let me know: I will gladly correct myself. I need to study a system of po…

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## [Call for examples for an introductory course to Julia for mathematics students](https://discourse.julialang.org/t/call-for-examples-for-an-introductory-course-to-julia-for-mathematics-students/76025)

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**Author:** [@jacobusmmsmit](https://discourse.julialang.org/u/jacobusmmsmit)\
**Replies:** 4\
**Last updated:** [February 8, 2022, 3:47pm UTC](https://discourse.julialang.org/t/call-for-examples-for-an-introductory-course-to-julia-for-mathematics-students/76025 "2022-02-08T15:47:49Z")

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Hello community, I’m looking to run a short introduction to Julia course at Oxford aimed at maths/stats students. The idea came about because everyone I speak to has heard of Julia but never used it. I am not aware of m…

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## [A question about Clustering.jl](https://discourse.julialang.org/t/a-question-about-clustering-jl/76030)

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**Author:** [@abcde](https://discourse.julialang.org/u/abcde)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 3:36pm UTC](https://discourse.julialang.org/t/a-question-about-clustering-jl/76030 "2022-02-08T15:36:25Z")

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This is my code: using Clustering #dist = Distances.Euclidean() X1 = rand(10, 10) #dm = Distances.pairwise(dist, X1, dims=2) ppresult=kmeans(X1,2) But it has the following errors: ERROR: LoadError: UndefVarError: …

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## [How do I use Downloads.download to download to a custom location?](https://discourse.julialang.org/t/how-do-i-use-downloads-download-to-download-to-a-custom-location/75322)

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**Author:** [@thompsonmj](https://discourse.julialang.org/u/thompsonmj)\
**Replies:** 13\
**Last updated:** [February 8, 2022, 3:09pm UTC](https://discourse.julialang.org/t/how-do-i-use-downloads-download-to-download-to-a-custom-location/75322 "2022-02-08T15:09:30Z")

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In the docs for Downloads.download, there are no examples and the errors don’t help. For instance, I’m trying to download a Projects.toml file from another repository. julia\> project\_url = "https://raw.githubuserconten…

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## [BudanTables.jl](https://discourse.julialang.org/t/budantables-jl/75944)

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**Author:** [@BMO](https://discourse.julialang.org/u/BMO)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 3:04pm UTC](https://discourse.julialang.org/t/budantables-jl/75944 "2022-02-08T15:04:57Z")

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I implemented a package for plotting the Budan’s table of a polynomial (Budan-Fourier theorem uses it for root counting, see Improved Budan-Fourier Count for Root Finding). https://github.com/LauraBMo/BudanTables.jl By…

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## [Mouse-over popout from inline result in VSCode is tiny](https://discourse.julialang.org/t/mouse-over-popout-from-inline-result-in-vscode-is-tiny/76028)

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**Author:** [@TheLateKronos](https://discourse.julialang.org/u/TheLateKronos)\
**Replies:** 2\
**Last updated:** [February 8, 2022, 3:03pm UTC](https://discourse.julialang.org/t/mouse-over-popout-from-inline-result-in-vscode-is-tiny/76028 "2022-02-08T15:03:06Z")

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I installed VSCode on another machine (Linux). I logged in, and synchronized stuff (settings etc.) from my profile. On this new machine, the pop-out when mousing over inline results was tiny. When I got back to my main …

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## [Improving performance of recursions by avoiding closures](https://discourse.julialang.org/t/improving-performance-of-recursions-by-avoiding-closures/76026)

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**Author:** [@lucifer1004](https://discourse.julialang.org/u/lucifer1004)\
**Replies:** 0\
**Last updated:** [February 8, 2022, 2:15pm UTC](https://discourse.julialang.org/t/improving-performance-of-recursions-by-avoiding-closures/76026 "2022-02-08T14:15:06Z")

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Just implemented Tarjan’s SCC (strongly-connected components) algorithm. In the first version, I created the dfs() function (which is recursive) inside the scc() function, and let it capture the needed variables from the…

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## [@printf strange performance behavior](https://discourse.julialang.org/t/printf-strange-performance-behavior/76013)

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**Author:** [@\_bernhard](https://discourse.julialang.org/u/_bernhard)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 1:52pm UTC](https://discourse.julialang.org/t/printf-strange-performance-behavior/76013 "2022-02-08T13:52:16Z")

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Hello everybody! I recently encountered some strange behavior related to printing numbers as ASCII in Julia. Tested were both Julia 1.6 and 1.7, the following timings are from 1.6. using Printf using BenchmarkTools f…

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## [Machine Learning using Julia - Aim/Idealogy of Flux.jl to for simplicity over compexity for programmers](https://discourse.julialang.org/t/machine-learning-using-julia-aim-idealogy-of-flux-jl-to-for-simplicity-over-compexity-for-programmers/75602)

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**Author:** [@arcAman07](https://discourse.julialang.org/u/arcAman07)\
**Replies:** 11\
**Last updated:** [February 8, 2022, 1:51pm UTC](https://discourse.julialang.org/t/machine-learning-using-julia-aim-idealogy-of-flux-jl-to-for-simplicity-over-compexity-for-programmers/75602 "2022-02-08T13:51:27Z")

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I had one question while learning Flux.jl library, what is the reason behind the minimal complexity/implementation ( less things done behind the hood ) by Flux.jl? Why isn’t Flux aiming to be something like tensorfl…

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## [Can not Run nonlinear optimization example using Ipopt](https://discourse.julialang.org/t/can-not-run-nonlinear-optimization-example-using-ipopt/75998)

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**Author:** [@Jian\_ZUO](https://discourse.julialang.org/u/Jian_ZUO)\
**Replies:** 3\
**Last updated:** [February 8, 2022, 1:48pm UTC](https://discourse.julialang.org/t/can-not-run-nonlinear-optimization-example-using-ipopt/75998 "2022-02-08T13:48:03Z")

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I am new to Julia and recently try to learn to do optimization using JuMP. I use the Quadratically constrained programs example in JuMP document website. using JuMP import Ipopt import Test function example\_qcp(; …

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## [ANN: Differentiable implicit functions in Julia (optimisation, nonlinear solves and fixed point iterations)](https://discourse.julialang.org/t/ann-differentiable-implicit-functions-in-julia-optimisation-nonlinear-solves-and-fixed-point-iterations/76016)

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**Author:** [@mohamed82008](https://discourse.julialang.org/u/mohamed82008)\
**Replies:** 3\
**Last updated:** [February 8, 2022, 1:29pm UTC](https://discourse.julialang.org/t/ann-differentiable-implicit-functions-in-julia-optimisation-nonlinear-solves-and-fixed-point-iterations/76016 "2022-02-08T13:29:54Z")

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In the spirit of https://arxiv.org/pdf/2105.15183.pdf, I have implemented a general differentiable implicit function in https://github.com/JuliaNonconvex/NonconvexUtils.jl. Feel free to take it for a spin and/or contribu…

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## [Scraping youtube webcomments with WebDriver.jl](https://discourse.julialang.org/t/scraping-youtube-webcomments-with-webdriver-jl/75996)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 2\
**Last updated:** [February 8, 2022, 1:25pm UTC](https://discourse.julialang.org/t/scraping-youtube-webcomments-with-webdriver-jl/75996 "2022-02-08T13:25:02Z")

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Hi All, I am trying to replicate this post How to Scrape Youtube Comments with Python | by François St-Amant | Towards Data Science in Julia. The author scrapes comments from yt videos using selenium driver and does som…

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## [Possibility of reducing memory usage EnsembleProblem](https://discourse.julialang.org/t/possibility-of-reducing-memory-usage-ensembleproblem/76019)

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**Author:** [@Brent](https://discourse.julialang.org/u/Brent)\
**Replies:** 1\
**Last updated:** [February 8, 2022, 1:22pm UTC](https://discourse.julialang.org/t/possibility-of-reducing-memory-usage-ensembleproblem/76019 "2022-02-08T13:22:06Z")

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I was wondering if it is possible to reduce the memory usage of an EnsembleProblem for large numbers of trajectories, for instance by saving to a file between batches. I’m currently running into the issue of being limite…

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## [Partial initialisation of a (Named)Tuple?](https://discourse.julialang.org/t/partial-initialisation-of-a-named-tuple/76011)

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**Author:** [@willtebbutt](https://discourse.julialang.org/u/willtebbutt)\
**Replies:** 8\
**Last updated:** [February 8, 2022, 1:21pm UTC](https://discourse.julialang.org/t/partial-initialisation-of-a-named-tuple/76011 "2022-02-08T13:21:52Z")

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I’m trying to figure out whether it’s possible to partially initialise a Tuple / NamedTuple. A concrete example: I would like to be able to write something like x = Tuple{Vector{Float64}, Vector{Float64}}(randn(5)) isd…

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## [What's the optimal setting for JULIA\_NUM\_THREADS on a Macbook Pro M1 Max](https://discourse.julialang.org/t/whats-the-optimal-setting-for-julia-num-threads-on-a-macbook-pro-m1-max/75928)

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**Author:** [@navidcy](https://discourse.julialang.org/u/navidcy)\
**Replies:** 4\
**Last updated:** [February 8, 2022, 12:55pm UTC](https://discourse.julialang.org/t/whats-the-optimal-setting-for-julia-num-threads-on-a-macbook-pro-m1-max/75928 "2022-02-08T12:55:19Z")

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with Total Numbers of Cores: 10 (8 performance and 2 efficiency)? Is it 10? 8? 20? 16?

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## [\[ANN\] Pastebin.jl: A Julia wrapper around the Pastebin API](https://discourse.julialang.org/t/ann-pastebin-jl-a-julia-wrapper-around-the-pastebin-api/75859)

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**Author:** [@e3c6](https://discourse.julialang.org/u/e3c6)\
**Replies:** 0\
**Last updated:** [February 5, 2022, 1:45pm UTC](https://discourse.julialang.org/t/ann-pastebin-jl-a-julia-wrapper-around-the-pastebin-api/75859 "2022-02-05T13:45:39Z")

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Hi all, I’m registering Pastebin.jl, a simple wrapper around the Pastebin API (https://github.com/cossio/Pastebin.jl). See the docs: Home · Pastebin.jl. It is based on https://github.com/molnarmark/Pastebin.jl, which h…

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## [Modeling gaussian process with Turing.jl](https://discourse.julialang.org/t/modeling-gaussian-process-with-turing-jl/76001)

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**Author:** [@RickandMortyforever](https://discourse.julialang.org/u/RickandMortyforever)\
**Replies:** 6\
**Last updated:** [February 8, 2022, 11:08am UTC](https://discourse.julialang.org/t/modeling-gaussian-process-with-turing-jl/76001 "2022-02-08T11:08:42Z")

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Hi, I was trying to build a gaussian process model with Turing.jl I’ve read Gaussianprocesses.jl and Stheno.jl. They must be good. But for the purpose of learning, I’d like to go through step by step in frame of Turing…

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## [How to pass on kwargs? - updated](https://discourse.julialang.org/t/how-to-pass-on-kwargs-updated/75782)

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**Author:** [@stefkuypers](https://discourse.julialang.org/u/stefkuypers)\
**Replies:** 18\
**Last updated:** [February 8, 2022, 10:32am UTC](https://discourse.julialang.org/t/how-to-pass-on-kwargs-updated/75782 "2022-02-08T10:32:26Z")

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Original post below. It seems the mistake must be somewhere else. I simplified the code to create a running example like this: using Agents mutable struct Agent \<: AbstractAgent id::Int64 end function my\_model\_st…

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## [Change transparecy of the spines in Makie plots](https://discourse.julialang.org/t/change-transparecy-of-the-spines-in-makie-plots/76002)

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**Author:** [@RayleighLord](https://discourse.julialang.org/u/RayleighLord)\
**Replies:** 2\
**Last updated:** [February 8, 2022, 9:11am UTC](https://discourse.julialang.org/t/change-transparecy-of-the-spines-in-makie-plots/76002 "2022-02-08T09:11:16Z")

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Hello! This is my first question here so forgive me if I make some style typos. Maybe this is a very specific question, but I noticed that the spines in Makie have some transparecy since, even though they are colored in…

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