# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=116

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

**Page:** 117

---

## [\[crosspost\] Summer School on Numerica Methods in QIS](https://discourse.julialang.org/t/crosspost-summer-school-on-numerica-methods-in-qis/113445)

<div class="topic-metadata">

**Author:** [@Krastanov](https://discourse.julialang.org/u/Krastanov)\
**Replies:** 0\
**Last updated:** [April 24, 2024, 12:58pm UTC](https://discourse.julialang.org/t/crosspost-summer-school-on-numerica-methods-in-qis/113445 "2024-04-24T12:58:24Z")

</div>

Hi, QIS folks! A cross-post from the general board (look there for more details) The NSF Center for Quantum Networks and the Unitary Fund will be running a summer school on classical numerical methods for quantum infor…

---

## [Any package implementing Savitzky-Golay filters or related?](https://discourse.julialang.org/t/any-package-implementing-savitzky-golay-filters-or-related/9717)

<div class="topic-metadata">

**Author:** [@Olivier\_Merchiers](https://discourse.julialang.org/u/Olivier_Merchiers)\
**Replies:** 3\
**Last updated:** [April 24, 2024, 7:18am UTC](https://discourse.julialang.org/t/any-package-implementing-savitzky-golay-filters-or-related/9717 "2024-04-24T07:18:20Z")

</div>

Hello everyone, I’m not sure this is the correct category, so feel free to put it elsewhere. I’m looking for a Julia package that implements a Savitzky-Golay filter or similar. I have FTIR spectroscopic data from whic…

---

## [Isocaps in GLMakie](https://discourse.julialang.org/t/isocaps-in-glmakie/113395)

<div class="topic-metadata">

**Author:** [@fedoroff](https://discourse.julialang.org/u/fedoroff)\
**Replies:** 2\
**Last updated:** [April 24, 2024, 7:00am UTC](https://discourse.julialang.org/t/isocaps-in-glmakie/113395 "2024-04-24T07:00:34Z")

</div>

Are there any ways in GLMakie to add isocaps to a cut of an isosurface? Something like this:

---

## [GTK4 periodic signal to refresh data display](https://discourse.julialang.org/t/gtk4-periodic-signal-to-refresh-data-display/112997)

<div class="topic-metadata">

**Author:** [@yjr](https://discourse.julialang.org/u/yjr)\
**Replies:** 1\
**Last updated:** [April 24, 2024, 12:59am UTC](https://discourse.julialang.org/t/gtk4-periodic-signal-to-refresh-data-display/112997 "2024-04-24T00:59:50Z")

</div>

Hello, I would like to know the best way to repeatedly update some labels. Currently I use Gtk4.g\_timeout\_add(cb,ms) . cb being a callback retrieving new values and updating corresponding labels. But it tends to render …

---

## [How to add variables with the same name in JuMP?](https://discourse.julialang.org/t/how-to-add-variables-with-the-same-name-in-jump/113324)

<div class="topic-metadata">

**Author:** [@HenriDeh](https://discourse.julialang.org/u/HenriDeh)\
**Replies:** 3\
**Last updated:** [April 23, 2024, 8:55pm UTC](https://discourse.julialang.org/t/how-to-add-variables-with-the-same-name-in-jump/113324 "2024-04-23T20:55:03Z")

</div>

Hello, I am trying to reproduce a model from a mosel file in JuMP. The mosel file uses a loop to iteratively define variables at specific indices. However, in JuMP, it seems I can’t find how to add variables with the sa…

---

## [Julia for processing Next-Generation Sequencing (NGS) datasets](https://discourse.julialang.org/t/julia-for-processing-next-generation-sequencing-ngs-datasets/113371)

<div class="topic-metadata">

**Author:** [@Bonjour-Lemonde](https://discourse.julialang.org/u/Bonjour-Lemonde)\
**Replies:** 5\
**Last updated:** [April 23, 2024, 5:24pm UTC](https://discourse.julialang.org/t/julia-for-processing-next-generation-sequencing-ngs-datasets/113371 "2024-04-23T17:24:40Z")

</div>

Hi all! I want to inquire how to use Julia for processing Next-Generation Sequencing (NGS) datasets, especially to merge paired-end sequencing reads. I think currently there seems no suitable packages in Julia as pandase…

---

## [Complex DataFrames.jl transform by row](https://discourse.julialang.org/t/complex-dataframes-jl-transform-by-row/112781)

<div class="topic-metadata">

**Author:** [@chelseas](https://discourse.julialang.org/u/chelseas)\
**Replies:** 5\
**Last updated:** [April 23, 2024, 4:19pm UTC](https://discourse.julialang.org/t/complex-dataframes-jl-transform-by-row/112781 "2024-04-23T16:19:47Z")

</div>

I’m a bit rusty on data table programming and I am getting stuck using the DataFrames.jl package when trying to applying a complex function to every row of a DataFrame. e.g., I would like to take the entirety of a row, a…

---

## [What are the best practices to put a very simple plot on custom \`show\`s of the types in a package?](https://discourse.julialang.org/t/what-are-the-best-practices-to-put-a-very-simple-plot-on-custom-show-s-of-the-types-in-a-package/113260)

<div class="topic-metadata">

**Author:** [@kimikage](https://discourse.julialang.org/u/kimikage)\
**Replies:** 6\
**Last updated:** [April 23, 2024, 3:43pm UTC](https://discourse.julialang.org/t/what-are-the-best-practices-to-put-a-very-simple-plot-on-custom-show-s-of-the-types-in-a-package/113260 "2024-04-23T15:43:52Z")

</div>

Hi all, I would like to put a very simple plot on the output of custom show(::IO, ::MIME "image/svg+xml", ::MyType). (In my case 2-d line and scatter plots are sufficient.) It is intended not only to help the user unde…

---

## [Edited video of the course “GPU Programming with Julia - 2nd edition” at the Swiss National Supercomputing Centre (CSCS) now available!](https://discourse.julialang.org/t/edited-video-of-the-course-gpu-programming-with-julia-2nd-edition-at-the-swiss-national-supercomputing-centre-cscs-now-available/113392)

<div class="topic-metadata">

**Author:** [@samo](https://discourse.julialang.org/u/samo)\
**Replies:** 2\
**Last updated:** [April 23, 2024, 3:35pm UTC](https://discourse.julialang.org/t/edited-video-of-the-course-gpu-programming-with-julia-2nd-edition-at-the-swiss-national-supercomputing-centre-cscs-now-available/113392 "2024-04-23T15:35:14Z")

</div>

Get the Jupyter notebooks discussed in the course, the edited recording and any other relevant information from here: GitHub - omlins/julia-gpu-course-2023: GPU Programming with Julia 2023 - course at the Swiss Nation…

---

## [Benchmark ParallelStencil & ImplicitGlobalGrid performance on cluster](https://discourse.julialang.org/t/benchmark-parallelstencil-implicitglobalgrid-performance-on-cluster/113023)

<div class="topic-metadata">

**Author:** [@svretina](https://discourse.julialang.org/u/svretina)\
**Replies:** 8\
**Last updated:** [April 23, 2024, 2:24pm UTC](https://discourse.julialang.org/t/benchmark-parallelstencil-implicitglobalgrid-performance-on-cluster/113023 "2024-04-23T14:24:30Z")

</div>

I am trying to use ParallelStencil with ImplicitGlobalGrid in order to run in parallel using multithreading as well. I have a working code solving the wave equation and I would like to measure the performance of the code…

---

## [Putting linear ODESystem in matrix-vector form](https://discourse.julialang.org/t/putting-linear-odesystem-in-matrix-vector-form/113333)

<div class="topic-metadata">

**Author:** [@langestefan](https://discourse.julialang.org/u/langestefan)\
**Replies:** 26\
**Last updated:** [April 23, 2024, 2:18pm UTC](https://discourse.julialang.org/t/putting-linear-odesystem-in-matrix-vector-form/113333 "2024-04-23T14:18:37Z")

</div>

Hi, I have an ODESystem, defined in modelingtoolkit.jl by these equations: \\begin{align} \\frac{\\mathrm{d} Ci\_{+}v\\left( t \\right)}{\\mathrm{d}t} =& \\frac{\\frac{ - Ci\_{+}v\\left( t \\right) + Ch\_{+}v\\left( t \\right)}{Rih\_…

---

## [SVector and Type Stabilty](https://discourse.julialang.org/t/svector-and-type-stabilty/113391)

<div class="topic-metadata">

**Author:** [@Domenico\_Lahaye](https://discourse.julialang.org/u/Domenico_Lahaye)\
**Replies:** 4\
**Last updated:** [April 23, 2024, 1:05pm UTC](https://discourse.julialang.org/t/svector-and-type-stabilty/113391 "2024-04-23T13:05:17Z")

</div>

I am struggling to understand the type instability of function foo(x,y,z,r) r\_prime = Point3D(x,y,z) result = r - rprime end given as input x = 0.; y = 0.; z = 0.; r = Point3D(1.,1.,1.) @code\_warntype foo(x,…

---

## [Specify range of gradient when plotting lines](https://discourse.julialang.org/t/specify-range-of-gradient-when-plotting-lines/113385)

<div class="topic-metadata">

**Author:** [@Christopher\_Fisher](https://discourse.julialang.org/u/Christopher_Fisher)\
**Replies:** 4\
**Last updated:** [April 23, 2024, 12:06pm UTC](https://discourse.julialang.org/t/specify-range-of-gradient-when-plotting-lines/113385 "2024-04-23T12:06:12Z")

</div>

Hi all, I would like to apply a color gradient to lines based on their slopes. The problem I am having is that the line with the smallest slope is not visible. I tried changing the the values argument for cgrad, but I c…

---

## [Custom Agent constructors?](https://discourse.julialang.org/t/custom-agent-constructors/113376)

<div class="topic-metadata">

**Author:** [@stefkuypers](https://discourse.julialang.org/u/stefkuypers)\
**Replies:** 2\
**Last updated:** [April 23, 2024, 11:37am UTC](https://discourse.julialang.org/t/custom-agent-constructors/113376 "2024-04-23T11:37:43Z")

</div>

I’d like to preprocess the parameters that are passed to an Agent upon construction. How would I go about that? A simple example of what I’d like to do: function make\_set(t::Union{Nothing, Symbol, Set{Symbol}}) if t …

---

## [Using CUDA hangs with P100 GPU](https://discourse.julialang.org/t/using-cuda-hangs-with-p100-gpu/113337)

<div class="topic-metadata">

**Author:** [@Donald](https://discourse.julialang.org/u/Donald)\
**Replies:** 2\
**Last updated:** [April 23, 2024, 9:53am UTC](https://discourse.julialang.org/t/using-cuda-hangs-with-p100-gpu/113337 "2024-04-23T09:53:01Z")

</div>

Hello. I’m trying to install CUDA.jl inside an interactive session on a cluster node with an NVIDIA Tesla P100 GPU. The output of nvidia-smi is +--------------------------------------------------------------------------…

---

## [Parameter bounds and confidence intervals in LsqFit.jl?](https://discourse.julialang.org/t/parameter-bounds-and-confidence-intervals-in-lsqfit-jl/113366)

<div class="topic-metadata">

**Author:** [@PeX](https://discourse.julialang.org/u/PeX)\
**Replies:** 1\
**Last updated:** [April 23, 2024, 7:40am UTC](https://discourse.julialang.org/t/parameter-bounds-and-confidence-intervals-in-lsqfit-jl/113366 "2024-04-23T07:40:03Z")

</div>

HI all, I’m trying to use LsqFit.jl to fit a model in the form of: model(t, p) = @. p\[1\] \* t^3 + p\[2\] \* t + p\[5\]\*sin(2\*π\*p\[3\]\*t + p\[4\]) However, I need p\[4\] to be strictly between 0 and pi. Is it possible to do it? I…

---

## [S3 Multipart Upload failed with SignatureDoesNotMatch error](https://discourse.julialang.org/t/s3-multipart-upload-failed-with-signaturedoesnotmatch-error/113363)

<div class="topic-metadata">

**Author:** [@Chamika\_Kasun](https://discourse.julialang.org/u/Chamika_Kasun)\
**Replies:** 0\
**Last updated:** [April 22, 2024, 11:14pm UTC](https://discourse.julialang.org/t/s3-multipart-upload-failed-with-signaturedoesnotmatch-error/113363 "2024-04-22T23:14:24Z")

</div>

I tried to do the multipart upload with the S3 methods as follows using AWS.ji library, but every time it gives me the following error, appreciate if someone can point out the mistake that I’ve made. \<Error\>\<Code\>Signat…

---

## [Solving the 4 quadrants of dynamic optimization problems in Julia. Help Wanted!](https://discourse.julialang.org/t/solving-the-4-quadrants-of-dynamic-optimization-problems-in-julia-help-wanted/73285)

<div class="topic-metadata">

**Author:** [@Albert\_Zevelev](https://discourse.julialang.org/u/Albert_Zevelev)\
**Replies:** 35\
**Last updated:** [April 22, 2024, 10:54pm UTC](https://discourse.julialang.org/t/solving-the-4-quadrants-of-dynamic-optimization-problems-in-julia-help-wanted/73285 "2024-04-22T22:54:24Z")

</div>

Solving dynamic optimization problems is at the heart of economics (and many other fields). The goal of this post is to explore various tools for solving dynamic optimization problems in the Julia Eco-system and to hope…

---

## [ModelingToolkit and Linearization](https://discourse.julialang.org/t/modelingtoolkit-and-linearization/113241)

<div class="topic-metadata">

**Author:** [@BambOoxX](https://discourse.julialang.org/u/BambOoxX)\
**Replies:** 15\
**Last updated:** [April 22, 2024, 7:44pm UTC](https://discourse.julialang.org/t/modelingtoolkit-and-linearization/113241 "2024-04-22T19:44:18Z")

</div>

Continuing a former discussion in Optimization of parameters of a dynamic problem with ModelingToolkit - #4 by BambOoxX, I’m now trying to model and linearize a mass-spring-damper system as an example to test MTKs capabi…

---

## [Vector of vector of gradients](https://discourse.julialang.org/t/vector-of-vector-of-gradients/113348)

<div class="topic-metadata">

**Author:** [@Domenico\_Lahaye](https://discourse.julialang.org/u/Domenico_Lahaye)\
**Replies:** 2\
**Last updated:** [April 22, 2024, 6:37pm UTC](https://discourse.julialang.org/t/vector-of-vector-of-gradients/113348 "2024-04-22T18:37:08Z")

</div>

I am to extend the scalar case of a gradient of a function, i.e., foo = Vector{Function}(undef,2) gnu = Vector{Function}(undef,2) foo\[1\] = (x,y) -\> x+y foo\[2\] = (x,y) -\> x-y A = \[1. 2.; 3. 4.\] gnu = (x,y) -\> B \* \[foo\[…

---

## [ArbNumerics.jl | questions regarding use](https://discourse.julialang.org/t/arbnumerics-jl-questions-regarding-use/113320)

<div class="topic-metadata">

**Author:** [@Audrius-St](https://discourse.julialang.org/u/Audrius-St)\
**Replies:** 0\
**Last updated:** [April 22, 2024, 8:11am UTC](https://discourse.julialang.org/t/arbnumerics-jl-questions-regarding-use/113320 "2024-04-22T08:11:35Z")

</div>

Hello, WSL 2 | Ubuntu 22.04.4 Julia 1.10.2 ArbNumerics 1.5.0 My first go at using extended precision in Julia. Ball arithmetic as implemented in the package ArbNumerics.jl is the method that I would like to use. To…

---

## [How to install NeuralOperators as a CPU-Version?](https://discourse.julialang.org/t/how-to-install-neuraloperators-as-a-cpu-version/113283)

<div class="topic-metadata">

**Author:** [@Andrew-Milestone](https://discourse.julialang.org/u/Andrew-Milestone)\
**Replies:** 3\
**Last updated:** [April 22, 2024, 4:52pm UTC](https://discourse.julialang.org/t/how-to-install-neuraloperators-as-a-cpu-version/113283 "2024-04-22T16:52:26Z")

</div>

Hello, i’m new to using julia, but have extensive experience in python and mathematica. unfortunately, i have an old laptop with a non-cuda compatible graphics card. so i’d like to include the NeuralOperators package as…

---

## [Do not launch browser when plotting with WGLMakie](https://discourse.julialang.org/t/do-not-launch-browser-when-plotting-with-wglmakie/113344)

<div class="topic-metadata">

**Author:** [@filchristou](https://discourse.julialang.org/u/filchristou)\
**Replies:** 0\
**Last updated:** [April 22, 2024, 3:24pm UTC](https://discourse.julialang.org/t/do-not-launch-browser-when-plotting-with-wglmakie/113344 "2024-04-22T15:24:37Z")

</div>

Following the docs I cannot seem to find a way to block the browser from launching when I plot something in the server using WGLMakie. Since I always log in using x-forwarding with ssh this terribly slows done my machine…

---

## [JuMP.jl vs Optimization.jl](https://discourse.julialang.org/t/jump-jl-vs-optimization-jl/112736)

<div class="topic-metadata">

**Author:** [@aris](https://discourse.julialang.org/u/aris)\
**Replies:** 17\
**Last updated:** [April 22, 2024, 9:33am UTC](https://discourse.julialang.org/t/jump-jl-vs-optimization-jl/112736 "2024-04-22T09:33:23Z")

</div>

Hello everyone, Not sure whether anyone else has the same problem, but I find it a bit hard to understand what’s the actual difference between Optimization.jl and JuMP.jl. To my untrained eye, it seems like they both o…

---

## [Deep learning in Julia](https://discourse.julialang.org/t/deep-learning-in-julia/112844)

<div class="topic-metadata">

**Author:** [@cpfiffer](https://discourse.julialang.org/u/cpfiffer)\
**Replies:** 35\
**Last updated:** [April 22, 2024, 9:11am UTC](https://discourse.julialang.org/t/deep-learning-in-julia/112844 "2024-04-22T09:11:44Z")

</div>

I’m been wondering about the general status of the deep learning ecosystem in Julia. We obviously have the big project Flux.jl, as well as a similar but mutable version in Lux.jl. I bring this up because it would be FAN…

---

## [Energy Time Series GRU with Historic and Forecasted Variables](https://discourse.julialang.org/t/energy-time-series-gru-with-historic-and-forecasted-variables/112986)

<div class="topic-metadata">

**Author:** [@dmoored4](https://discourse.julialang.org/u/dmoored4)\
**Replies:** 1\
**Last updated:** [April 21, 2024, 5:50pm UTC](https://discourse.julialang.org/t/energy-time-series-gru-with-historic-and-forecasted-variables/112986 "2024-04-21T17:50:44Z")

</div>

Hello, all! I need conceptual assistance with how I should be using a GRU which uses historic data for variables 1:8 and forecasted variables for variables 1:4 to forecast the values for variables 5:8. I have time serie…

---

## [Adjoint/transpose wrapper question](https://discourse.julialang.org/t/adjoint-transpose-wrapper-question/113128)

<div class="topic-metadata">

**Author:** [@jamesr137](https://discourse.julialang.org/u/jamesr137)\
**Replies:** 18\
**Last updated:** [April 21, 2024, 4:42pm UTC](https://discourse.julialang.org/t/adjoint-transpose-wrapper-question/113128 "2024-04-21T16:42:15Z")

</div>

Hi everyone. This is my first time posting on this site. Let me start off by saying that I am not a professional software developer (at least, not yet). I am more or less just a tinkerer or hobbyist atm, both in terms of…

---

## [SCIP.jl: how to add a new parameter?](https://discourse.julialang.org/t/scip-jl-how-to-add-a-new-parameter/113246)

<div class="topic-metadata">

**Author:** [@Maxime](https://discourse.julialang.org/u/Maxime)\
**Replies:** 2\
**Last updated:** [April 21, 2024, 1:16pm UTC](https://discourse.julialang.org/t/scip-jl-how-to-add-a-new-parameter/113246 "2024-04-21T13:16:48Z")

</div>

Hello, I am trying to use SCIP.jl with a custom branch of SCIP (exact-rational branch). I managed to compile this branch and to pass the install dir to SCIP.jl in my ENV\[“SCIPOPTDIR”\]. As indicated on the Readme of the …

---

## [Is there an alternative to the agents\_first keyword?](https://discourse.julialang.org/t/is-there-an-alternative-to-the-agents-first-keyword/113272)

<div class="topic-metadata">

**Author:** [@stefkuypers](https://discourse.julialang.org/u/stefkuypers)\
**Replies:** 2\
**Last updated:** [April 21, 2024, 8:31am UTC](https://discourse.julialang.org/t/is-there-an-alternative-to-the-agents-first-keyword/113272 "2024-04-21T08:31:35Z")

</div>

I’m upgrading my code to Agents.jl 6.x and I get an error stating that there is an unsupported keyword “agents\_first” for the run! function. I guess that the default is still the same (agents first) but I need the model\_…

---

## [Parallel resampling columnwise](https://discourse.julialang.org/t/parallel-resampling-columnwise/113203)

<div class="topic-metadata">

**Author:** [@jafagervik](https://discourse.julialang.org/u/jafagervik)\
**Replies:** 2\
**Last updated:** [April 20, 2024, 10:48pm UTC](https://discourse.julialang.org/t/parallel-resampling-columnwise/113203 "2024-04-20T22:48:43Z")

</div>

Hi, I have a large matrix I want to resample. Typical size is about 20\_000 \* 500. The code I have for now looks like this: using DSP: resample function resample\_parallel(signal::Matrix{Float32}, rate::Real) result …

[Previous page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=115)

[Next page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=117)