# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=33

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**Page:** 34

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## [Fitting a distribution not supported by Distributions.jl](https://discourse.julialang.org/t/fitting-a-distribution-not-supported-by-distributions-jl/130818)

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**Author:** [@henry2004y](https://discourse.julialang.org/u/henry2004y)\
**Replies:** 6\
**Last updated:** [July 18, 2025, 1:14am UTC](https://discourse.julialang.org/t/fitting-a-distribution-not-supported-by-distributions-jl/130818 "2025-07-18T01:14:42Z")

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Hi, I want to fit an analytical distribution in Julia from discrete points. For instance, this specific Levy distribution is listed in Distributions.jl, but the fit method is not supported for this type: Distribution Fi…

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## [Out of dynamic GPU memory?](https://discourse.julialang.org/t/out-of-dynamic-gpu-memory/76639)

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**Author:** [@peremato](https://discourse.julialang.org/u/peremato)\
**Replies:** 8\
**Last updated:** [July 16, 2025, 11:39pm UTC](https://discourse.julialang.org/t/out-of-dynamic-gpu-memory/76639 "2025-07-16T23:39:53Z")

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When running a kernel several times (3) I get the following exception (with -g2): ERROR: Out of dynamic GPU memory (trying to allocate 64 bytes) ERROR: Out of dynamic GPU memory (trying to allocate 64 bytes) ERROR: Out …

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## [Specify theming in the attributes with new Makie 0.24 Recipe syntax](https://discourse.julialang.org/t/specify-theming-in-the-attributes-with-new-makie-0-24-recipe-syntax/130763)

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**Author:** [@theabhirath](https://discourse.julialang.org/u/theabhirath)\
**Replies:** 4\
**Last updated:** [July 16, 2025, 2:48pm UTC](https://discourse.julialang.org/t/specify-theming-in-the-attributes-with-new-makie-0-24-recipe-syntax/130763 "2025-07-16T14:48:05Z")

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I want to try and specify a default theme for a recipe I’m writing, and in the style of the new Makie 0.24+ syntax, I have: @recipe ConfidencePlot (x, y, ϵ) begin ... # some miscellaneous attributes Theme(Axis(...)…

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## [Add new column to GeoTable from Vector](https://discourse.julialang.org/t/add-new-column-to-geotable-from-vector/130735)

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**Author:** [@beppi](https://discourse.julialang.org/u/beppi)\
**Replies:** 3\
**Last updated:** [July 16, 2025, 2:53am UTC](https://discourse.julialang.org/t/add-new-column-to-geotable-from-vector/130735 "2025-07-16T02:53:16Z")

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Hey guys, new to Julia I’ve searched so much and can’t seem to find an answer to this simple question.. How do I take a Vector, and add it as a new column to a GeoTable? I see there is a way to create a new column (@t…

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## [Can Makie plot axis in "zebra style"?](https://discourse.julialang.org/t/can-makie-plot-axis-in-zebra-style/130745)

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**Author:** [@Ronis\_BR](https://discourse.julialang.org/u/Ronis_BR)\
**Replies:** 12\
**Last updated:** [July 15, 2025, 7:22pm UTC](https://discourse.julialang.org/t/can-makie-plot-axis-in-zebra-style/130745 "2025-07-15T19:22:32Z")

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Hi! A design pattern very common when plotting maps is to use “zebra style” in the axes like this: Is it possible to create this type of axes in Makie?

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## [Plots, heatmap and xlim](https://discourse.julialang.org/t/plots-heatmap-and-xlim/95448)

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**Author:** [@Gravlax](https://discourse.julialang.org/u/Gravlax)\
**Replies:** 3\
**Last updated:** [July 15, 2025, 4:46pm UTC](https://discourse.julialang.org/t/plots-heatmap-and-xlim/95448 "2025-07-15T16:46:18Z")

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Dear all, We just came across a weird behaviour when using (inapproriately) xlim. In the MWE below, x and y axis are arrays/ranges of very large numbers (say a map of ~1000 km width/height given in unit meters, so orde…

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## [Multithreaded for loops in Julia](https://discourse.julialang.org/t/multithreaded-for-loops-in-julia/130728)

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**Author:** [@random\_guy](https://discourse.julialang.org/u/random_guy)\
**Replies:** 11\
**Last updated:** [July 15, 2025, 1:52pm UTC](https://discourse.julialang.org/t/multithreaded-for-loops-in-julia/130728 "2025-07-15T13:52:21Z")

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Hello everyone, I am a bit new to multithreading and I would like to know what the best way to multithread a for loop is. The unthreaded for loop is the following, where I’ve included in-place matrix modification and th…

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## [Deserialization of Turing model fails in Quarto document](https://discourse.julialang.org/t/deserialization-of-turing-model-fails-in-quarto-document/130699)

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**Author:** [@khoffie](https://discourse.julialang.org/u/khoffie)\
**Replies:** 5\
**Last updated:** [July 15, 2025, 1:48pm UTC](https://discourse.julialang.org/t/deserialization-of-turing-model-fails-in-quarto-document/130699 "2025-07-15T13:48:41Z")

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I have several results from an optimization serialized to disk. They are all NamedTuples result = (mdl = A Turing Model, chn = A Chains object) Now I want to return predictions from a model in my test.qmd file: --- titl…

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## [Enzyme throws \`alwaysinline mustprogress\` when using GraphNeuralNetworks to mutate Graphs](https://discourse.julialang.org/t/enzyme-throws-alwaysinline-mustprogress-when-using-graphneuralnetworks-to-mutate-graphs/130684)

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**Author:** [@alonsoC1s](https://discourse.julialang.org/u/alonsoC1s)\
**Replies:** 6\
**Last updated:** [July 15, 2025, 11:53am UTC](https://discourse.julialang.org/t/enzyme-throws-alwaysinline-mustprogress-when-using-graphneuralnetworks-to-mutate-graphs/130684 "2025-07-15T11:53:46Z")

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I am trying to use GraphNeuralNetworks with Flux in a Deep RL style problem. What I want to achieve by using GraphNeuralNetworks is to obtain new weights for a modifed graph that changes every epoch, and run a simulation…

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## [BifurcationKit - Error using continuation()](https://discourse.julialang.org/t/bifurcationkit-error-using-continuation/130737)

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**Author:** [@jackwoodruff](https://discourse.julialang.org/u/jackwoodruff)\
**Replies:** 2\
**Last updated:** [July 15, 2025, 11:11am UTC](https://discourse.julialang.org/t/bifurcationkit-error-using-continuation/130737 "2025-07-15T11:11:36Z")

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Hello, I am new to Julia and trying to use BifurcationKit to do some continuation analysis. However, I have yet to get it working for my system of ODEs. Having debugged a few errors, I am now getting this one that I cann…

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## [Modeling Toolkit: mtkcompile taking forever for large systems](https://discourse.julialang.org/t/modeling-toolkit-mtkcompile-taking-forever-for-large-systems/130646)

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**Author:** [@njacki](https://discourse.julialang.org/u/njacki)\
**Replies:** 8\
**Last updated:** [July 15, 2025, 8:42am UTC](https://discourse.julialang.org/t/modeling-toolkit-mtkcompile-taking-forever-for-large-systems/130646 "2025-07-15T08:42:47Z")

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I recently re-coded an advection-reaction biogeochemical box model using ModelingToolkit.jl, that allows a smooth transition form papers’ equations to actual code and make it easily understandable. I build the model in a…

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## [Is KNITRO.jl thread-safe](https://discourse.julialang.org/t/is-knitro-jl-thread-safe/130717)

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**Author:** [@CeterisPartybus](https://discourse.julialang.org/u/CeterisPartybus)\
**Replies:** 3\
**Last updated:** [July 14, 2025, 11:14pm UTC](https://discourse.julialang.org/t/is-knitro-jl-thread-safe/130717 "2025-07-14T23:14:14Z")

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Hi everyone, is it save to launch multiple instances of Knitro with JuMP at the same time? I aim to solve a couple of problems at the same time for different parameter combinations on multiple Julia threads. I would de…

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## [Early optimizer termination](https://discourse.julialang.org/t/early-optimizer-termination/130710)

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**Author:** [@mary](https://discourse.julialang.org/u/mary)\
**Replies:** 6\
**Last updated:** [July 14, 2025, 9:16pm UTC](https://discourse.julialang.org/t/early-optimizer-termination/130710 "2025-07-14T21:16:07Z")

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Hi I am using NLOP and MMA for optimization. The optimizer stops the optimization and reach the Xtol\_rel while I have large gradients which should make optimizer keep going. Could you please help me understand what is th…

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## [Fastest way to calculate eigenvectors of 4x4 matrix](https://discourse.julialang.org/t/fastest-way-to-calculate-eigenvectors-of-4x4-matrix/125174)

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**Author:** [@Xu\_Shan](https://discourse.julialang.org/u/Xu_Shan)\
**Replies:** 21\
**Last updated:** [July 13, 2025, 2:06pm UTC](https://discourse.julialang.org/t/fastest-way-to-calculate-eigenvectors-of-4x4-matrix/125174 "2025-07-13T14:06:05Z")

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Hi guys, I am trying to run a model which simulates a long time series. For each time step, I need to solve the Eigen values and Eigen vectors for one matrix. This matrix is only 4\*4, but the computation time is importa…

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## [Excessive memory usage when adding millions of variables to a JuMP Model](https://discourse.julialang.org/t/excessive-memory-usage-when-adding-millions-of-variables-to-a-jump-model/130163)

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**Author:** [@Walter](https://discourse.julialang.org/u/Walter)\
**Replies:** 12\
**Last updated:** [July 12, 2025, 3:28pm UTC](https://discourse.julialang.org/t/excessive-memory-usage-when-adding-millions-of-variables-to-a-jump-model/130163 "2025-07-12T15:28:52Z")

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Hi, I’m solving a large MIP using JuMP + Gurobi. My approach dynamically adds variables to the model (similar to column generation). In some cases, up to 10 000 000 variables are added within a single step. During this …

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## [Solving Large Sparse SPD Linear Systems with Hybrid Direct-Iterative Methods in Julia](https://discourse.julialang.org/t/solving-large-sparse-spd-linear-systems-with-hybrid-direct-iterative-methods-in-julia/130650)

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**Author:** [@pitsianis](https://discourse.julialang.org/u/pitsianis)\
**Replies:** 1\
**Last updated:** [July 11, 2025, 8:50pm UTC](https://discourse.julialang.org/t/solving-large-sparse-spd-linear-systems-with-hybrid-direct-iterative-methods-in-julia/130650 "2025-07-11T20:50:39Z")

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I’m exploring the idea of solving large, sparse symmetric positive definite (SPD) linear systems using hybrid approaches that combine direct methods (e.g., Cholesky) with iterative methods (e.g., CG with incomplete Chole…

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## [Repair(0) vs Repair(1) & creating color values](https://discourse.julialang.org/t/repair-0-vs-repair-1-creating-color-values/130580)

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**Author:** [@raman\_kumar](https://discourse.julialang.org/u/raman_kumar)\
**Replies:** 1\
**Last updated:** [July 10, 2025, 11:16pm UTC](https://discourse.julialang.org/t/repair-0-vs-repair-1-creating-color-values/130580 "2025-07-10T23:16:56Z")

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I want to get smooth(interpolated) color mapping for elements but it is not supported in GLMakie.jl. So i am converting cell body values(color) to vertices values. I am taking vertex value to be equal to average of surro…

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## [Raddar/spider image](https://discourse.julialang.org/t/raddar-spider-image/130608)

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**Author:** [@AbdelazimHussien](https://discourse.julialang.org/u/AbdelazimHussien)\
**Replies:** 0\
**Last updated:** [July 10, 2025, 1:20pm UTC](https://discourse.julialang.org/t/raddar-spider-image/130608 "2025-07-10T13:20:38Z")

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Hello I am developing a package for metaheuristics algorithms named MetaheuristicsAlgorithms I wanna make a raddar image I write the following trace = scatterpolar( r = mean\_fitness, theta = label…

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## [Polynomial optimization without sum of squares](https://discourse.julialang.org/t/polynomial-optimization-without-sum-of-squares/130478)

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**Author:** [@joemaik](https://discourse.julialang.org/u/joemaik)\
**Replies:** 11\
**Last updated:** [July 10, 2025, 1:24pm UTC](https://discourse.julialang.org/t/polynomial-optimization-without-sum-of-squares/130478 "2025-07-10T13:24:13Z")

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TL-DR: I would like to solve a linear program, but the problem itself involves multivariate polynomials. So I need tools to transform polynomials to their vectors of coefficients and back. Moreoever, in the end, after so…

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## [Relaxing Big-M constraint](https://discourse.julialang.org/t/relaxing-big-m-constraint/130592)

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**Author:** [@leila\_Ra](https://discourse.julialang.org/u/leila_Ra)\
**Replies:** 5\
**Last updated:** [July 10, 2025, 3:15am UTC](https://discourse.julialang.org/t/relaxing-big-m-constraint/130592 "2025-07-10T03:15:20Z")

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Hi, I’m formulating an optimization problem in JuMP and need some advice on relaxing a logical constraint. The logic is as follows: If x\>260, then Z=0. (Note: Z can only be either 0 or Zmax no values in between.) I’…

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## [How to extract the dependency (also called causal) graph of a ModelingToolkit.jl ODE model?](https://discourse.julialang.org/t/how-to-extract-the-dependency-also-called-causal-graph-of-a-modelingtoolkit-jl-ode-model/130576)

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**Author:** [@Datseris](https://discourse.julialang.org/u/Datseris)\
**Replies:** 4\
**Last updated:** [July 9, 2025, 7:31pm UTC](https://discourse.julialang.org/t/how-to-extract-the-dependency-also-called-causal-graph-of-a-modelingtoolkit-jl-ode-model/130576 "2025-07-09T19:31:17Z")

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I am trying to create the dependency (sometimes called causal) graph of a complex ODE System I have created symbolically with MTK. To do this I am using the dependency graph functionality of MTK \[found here\], however I c…

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## [Makie - How to add ReferenceTests when contributing to Makie](https://discourse.julialang.org/t/makie-how-to-add-referencetests-when-contributing-to-makie/126092)

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**Author:** [@mikeliux](https://discourse.julialang.org/u/mikeliux)\
**Replies:** 4\
**Last updated:** [July 9, 2025, 2:00pm UTC](https://discourse.julialang.org/t/makie-how-to-add-referencetests-when-contributing-to-makie/126092 "2025-07-09T14:00:40Z")

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I am not an experienced julia user, but I would like to contribute with a couple of minor implementations in Makie.jl. One of them is almost done, but I got stucked at one thing: I must implement a ReferenceTest. This R…

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## [Makie legend text colours](https://discourse.julialang.org/t/makie-legend-text-colours/130572)

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**Author:** [@aris](https://discourse.julialang.org/u/aris)\
**Replies:** 2\
**Last updated:** [July 9, 2025, 12:06pm UTC](https://discourse.julialang.org/t/makie-legend-text-colours/130572 "2025-07-09T12:06:04Z")

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Hello everyone, Suppose we have the following example: using GLMakie f = Figure() ax = Axis(f\[:,:\]) for i in 1:5 scatter!( ax, i, i, marker=collect('a':'z')\[i\], colormap=:tab10, colorrang…

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## [Combining \`SparseDiffTools.jl\` and \`OrdinaryDiffEq.jl\`](https://discourse.julialang.org/t/combining-sparsedifftools-jl-and-ordinarydiffeq-jl/130555)

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**Author:** [@DanDoe](https://discourse.julialang.org/u/DanDoe)\
**Replies:** 8\
**Last updated:** [July 9, 2025, 10:53am UTC](https://discourse.julialang.org/t/combining-sparsedifftools-jl-and-ordinarydiffeq-jl/130555 "2025-07-09T10:53:43Z")

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I managed to get the sparsity structure detection (via SparseDiffTools.j) of the rhs! function (the RHS of the ODE problem fed into OrdinaryDiffEq.jl) for our code Trixi.jl to run. Can I supply the cache = sparse\_jacob…

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## [Scatter plot points visable even if behind a mesh plot](https://discourse.julialang.org/t/scatter-plot-points-visable-even-if-behind-a-mesh-plot/130569)

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**Author:** [@Varun\_V](https://discourse.julialang.org/u/Varun_V)\
**Replies:** 1\
**Last updated:** [July 9, 2025, 8:00am UTC](https://discourse.julialang.org/t/scatter-plot-points-visable-even-if-behind-a-mesh-plot/130569 "2025-07-09T08:00:35Z")

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Hi everyone, I’m encountering different transparency behavior between CairoMakie and GLMakie when combining scatter plots with mesh plots. Expected behavior: scatter plot points behind a mesh should be hidden (like in …

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## [How to have markers without fill color in Makie.jl?](https://discourse.julialang.org/t/how-to-have-markers-without-fill-color-in-makie-jl/88698)

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**Author:** [@yhchang](https://discourse.julialang.org/u/yhchang)\
**Replies:** 4\
**Last updated:** [July 9, 2025, 4:38am UTC](https://discourse.julialang.org/t/how-to-have-markers-without-fill-color-in-makie-jl/88698 "2025-07-09T04:38:45Z")

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Is it possible to only retain the outer edge (has no color fill) of the common markers like :circle or :diamond when using scatter or scatterline in CairoMakie.jl?

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## [Benchmarking slow agents.jl code](https://discourse.julialang.org/t/benchmarking-slow-agents-jl-code/129871)

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**Author:** [@geoffdougherty](https://discourse.julialang.org/u/geoffdougherty)\
**Replies:** 8\
**Last updated:** [July 9, 2025, 1:52am UTC](https://discourse.julialang.org/t/benchmarking-slow-agents-jl-code/129871 "2025-07-09T01:52:08Z")

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Hi, all. I am relatively new to Agents.jl and am noticing that my model is running quite slowly compared to similar models using other platforms. Following the performance advice in the Agents.jl documentation, I’d like …

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## [LaTeXParseError when trying to make plot title using LaTeXStrings](https://discourse.julialang.org/t/latexparseerror-when-trying-to-make-plot-title-using-latexstrings/130565)

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**Author:** [@Michael\_Barmann](https://discourse.julialang.org/u/Michael_Barmann)\
**Replies:** 3\
**Last updated:** [July 8, 2025, 8:36pm UTC](https://discourse.julialang.org/t/latexparseerror-when-trying-to-make-plot-title-using-latexstrings/130565 "2025-07-08T20:36:52Z")

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I’m trying to create a LaTeXString title for a Makie plot that uses string interpolation, but I’m getting some weird behavior. Some of the LaTeXStrings that I’ve tried have worked, but others have not, and give me an err…

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## [Dash Julia: data panels for graphical data visualization](https://discourse.julialang.org/t/dash-julia-data-panels-for-graphical-data-visualization/129243)

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**Author:** [@aasdelat](https://discourse.julialang.org/u/aasdelat)\
**Replies:** 6\
**Last updated:** [July 8, 2025, 3:47pm UTC](https://discourse.julialang.org/t/dash-julia-data-panels-for-graphical-data-visualization/129243 "2025-07-08T15:47:23Z")

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Hi, there: I have seen this announcement in the Dash library forum. It seems that they will retire the documentation for the Julia version of the Dash library. It seems that this is a setback for the Julia language. The…

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## [Using float64 with Makie attribute 'shininess' gives error](https://discourse.julialang.org/t/using-float64-with-makie-attribute-shininess-gives-error/130293)

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**Author:** [@fruno](https://discourse.julialang.org/u/fruno)\
**Replies:** 4\
**Last updated:** [July 8, 2025, 2:35pm UTC](https://discourse.julialang.org/t/using-float64-with-makie-attribute-shininess-gives-error/130293 "2025-07-08T14:35:05Z")

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Hi, Since the update to Makie 0.24, shininess appears to require floats (Float32). For Makie 0.23 GLMakie supported doubles (Float64), but CairoMakie did not (for default versions of the backends). Now neither supports…

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