# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=367

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

**Page:** 368

---

## [Symbolic diagonalization](https://discourse.julialang.org/t/symbolic-diagonalization/60875)

<div class="topic-metadata">

**Author:** [@volkerkarle](https://discourse.julialang.org/u/volkerkarle)\
**Replies:** 3\
**Last updated:** [May 10, 2021, 11:01am UTC](https://discourse.julialang.org/t/symbolic-diagonalization/60875 "2021-05-10T11:01:02Z")

</div>

Dear community, I was wondering to what extend diagonalization in Symbolics.jl is implemented, Symbolic linear algebra (factorizations, inversion, determinants, eigencomputations, etc.) I see that some factorization…

---

## [Diff eq parameter estimation](https://discourse.julialang.org/t/diff-eq-parameter-estimation/60730)

<div class="topic-metadata">

**Author:** [@isentropic](https://discourse.julialang.org/u/isentropic)\
**Replies:** 2\
**Last updated:** [May 10, 2021, 10:06am UTC](https://discourse.julialang.org/t/diff-eq-parameter-estimation/60730 "2021-05-10T10:06:30Z")

</div>

Dear DiffEq.jl users, I have N-body parallel (independent) simulation. Roughly, after applying most important optimizations like non-allocating and avoiding globals, my simulation for N=1000 runs for 5mins. This is all …

---

## [How to pass options for bonmin solver](https://discourse.julialang.org/t/how-to-pass-options-for-bonmin-solver/60790)

<div class="topic-metadata">

**Author:** [@manoj.centura](https://discourse.julialang.org/u/manoj.centura)\
**Replies:** 6\
**Last updated:** [May 10, 2021, 7:49am UTC](https://discourse.julialang.org/t/how-to-pass-options-for-bonmin-solver/60790 "2021-05-10T07:49:33Z")

</div>

Hi, I am using bonmin solver via AmplNLWriter model2 = Model(() -\> AmplNLWriter.Optimizer("D:\\\\Julia\_solver\\\\Bonmin-1.4.0-win32-msvc9\\\\bin\\\\bonmin")) Any suggestion on how to pass time\_limit to the solver. I tried bel…

---

## [CPLEX Julia/JuMP Connection Problem](https://discourse.julialang.org/t/cplex-julia-jump-connection-problem/60724)

<div class="topic-metadata">

**Author:** [@Armando\_Gabriel\_Guar](https://discourse.julialang.org/u/Armando_Gabriel_Guar)\
**Replies:** 6\
**Last updated:** [May 10, 2021, 5:31am UTC](https://discourse.julialang.org/t/cplex-julia-jump-connection-problem/60724 "2021-05-10T05:31:34Z")

</div>

Dear Julia Guys, I am having a lot of trouble to make cplex run with julia/jump, (Gurobi has been seamless and works perfect). I installed the package and when running the sentence “using CPLEX”, I get the following mes…

---

## [Issue saving graphs using LightGraph](https://discourse.julialang.org/t/issue-saving-graphs-using-lightgraph/60826)

<div class="topic-metadata">

**Author:** [@bfried1](https://discourse.julialang.org/u/bfried1)\
**Replies:** 1\
**Last updated:** [May 10, 2021, 2:28am UTC](https://discourse.julialang.org/t/issue-saving-graphs-using-lightgraph/60826 "2021-05-10T02:28:36Z")

</div>

I am having trouble simply saving a graph in one of the formats offered by GraphIO

---

## [JuMP package download issue: Some dependencies errored](https://discourse.julialang.org/t/jump-package-download-issue-some-dependencies-errored/60832)

<div class="topic-metadata">

**Author:** [@trathi](https://discourse.julialang.org/u/trathi)\
**Replies:** 4\
**Last updated:** [May 9, 2021, 9:30pm UTC](https://discourse.julialang.org/t/jump-package-download-issue-some-dependencies-errored/60832 "2021-05-09T21:30:50Z")

</div>

I just downloaded the latest version of JuMP v0.21.8 and while precompiling some of the dependencies failed. Any reason why? However, the command build JuMP runs without any error. I am using Julia 1.6.1.

---

## [Optimization help: porting fmincon() to Julia](https://discourse.julialang.org/t/optimization-help-porting-fmincon-to-julia/60739)

<div class="topic-metadata">

**Author:** [@MA\_Laforge](https://discourse.julialang.org/u/MA_Laforge)\
**Replies:** 2\
**Last updated:** [May 9, 2021, 3:48pm UTC](https://discourse.julialang.org/t/optimization-help-porting-fmincon-to-julia/60739 "2021-05-09T15:48:39Z")

</div>

Problem I’m having problems porting fmincon() statements that appear to require “Generic nonlinear constraints” (using nonlcon). Here are the references I have used: https://www.mathworks.com/help/optim/ug/fmincon.html …

---

## [Repeated measures ANOVA](https://discourse.julialang.org/t/repeated-measures-anova/60765)

<div class="topic-metadata">

**Author:** [@rikh](https://discourse.julialang.org/u/rikh)\
**Replies:** 11\
**Last updated:** [May 8, 2021, 7:36pm UTC](https://discourse.julialang.org/t/repeated-measures-anova/60765 "2021-05-08T19:36:29Z")

</div>

I’m trying to do a repeated measures ANOVA. Lets say the data is as follows julia\> using CategoricalArrays, DataFrames, Random julia\> Random.seed!(1) julia\> df = DataFrame( id = categorical(repeat(1:2; inner…

---

## [Change labels in existing plot (Plots package)](https://discourse.julialang.org/t/change-labels-in-existing-plot-plots-package/60738)

<div class="topic-metadata">

**Author:** [@liviomaya](https://discourse.julialang.org/u/liviomaya)\
**Replies:** 3\
**Last updated:** [May 8, 2021, 5:47pm UTC](https://discourse.julialang.org/t/change-labels-in-existing-plot-plots-package/60738 "2021-05-08T17:47:06Z")

</div>

I have a pre-existing figure with multiple curves and an existing label vector. I need to change the labels - probably using the plot! command - but I am not able to do it. I don’t think this is not a row vector label is…

---

## [How do I find a p value with HypothesisTests.jl?](https://discourse.julialang.org/t/how-do-i-find-a-p-value-with-hypothesistests-jl/60758)

<div class="topic-metadata">

**Author:** [@brett\_knoss](https://discourse.julialang.org/u/brett_knoss)\
**Replies:** 8\
**Last updated:** [May 8, 2021, 4:26pm UTC](https://discourse.julialang.org/t/how-do-i-find-a-p-value-with-hypothesistests-jl/60758 "2021-05-08T16:26:31Z")

</div>

The documentation provides the example: pvalue(test::HypothesisTest; tail = :both) but how do I enter this ie. using HypothesisTests pvalue(pvalue(ApproximateTwoSampleKSTest(x,y); :both) isn’t accepted, so how do i p…

---

## [GPU on Macs?](https://discourse.julialang.org/t/gpu-on-macs/60732)

<div class="topic-metadata">

**Author:** [@Jojo\_Dad](https://discourse.julialang.org/u/Jojo_Dad)\
**Replies:** 4\
**Last updated:** [May 8, 2021, 2:13pm UTC](https://discourse.julialang.org/t/gpu-on-macs/60732 "2021-05-08T14:13:34Z")

</div>

Is there any Julia GPU support on Macs?

---

## [In MLJ, what does \`fit!\` do exactly?](https://discourse.julialang.org/t/in-mlj-what-does-fit-do-exactly/60750)

<div class="topic-metadata">

**Author:** [@ablaom](https://discourse.julialang.org/u/ablaom)\
**Replies:** 1\
**Last updated:** [May 7, 2021, 11:44pm UTC](https://discourse.julialang.org/t/in-mlj-what-does-fit-do-exactly/60750 "2021-05-07T23:44:30Z")

</div>

A query posted on slack: Hello! I’m using MLJ to train a classifier but I’m not sure to correctly understand how successive trains “stack”, i.e. what happens when we call fit!() several times (it says “machine has been …

---

## [Using MeasureTheory.jl with Distributions.jl](https://discourse.julialang.org/t/using-measuretheory-jl-with-distributions-jl/60737)

<div class="topic-metadata">

**Author:** [@cscherrer](https://discourse.julialang.org/u/cscherrer)\
**Replies:** 0\
**Last updated:** [May 7, 2021, 6:06pm UTC](https://discourse.julialang.org/t/using-measuretheory-jl-with-distributions-jl/60737 "2021-05-07T18:06:05Z")

</div>

I’ve heard there may be some perception that to use MeasureTheory, you need to entirely drop Distributions.jl. That’s not true! Calling Distributions from MeasureTheory MeasureTheory actually has Distributions as a depe…

---

## [BioProfiling.jl](https://discourse.julialang.org/t/bioprofiling-jl/60727)

<div class="topic-metadata">

**Author:** [@koalive](https://discourse.julialang.org/u/koalive)\
**Replies:** 1\
**Last updated:** [May 7, 2021, 4:54pm UTC](https://discourse.julialang.org/t/bioprofiling-jl/60727 "2021-05-07T16:54:17Z")

</div>

Hi there, I’m glad to announce the release of BioProfiling.jl v1.0.0, now as a registered package! You might find it interesting if you’re analysing high-content imaging screens and eager to curate informative morpholo…

---

## [Different behavior of zcolor in Scatter and Plot](https://discourse.julialang.org/t/different-behavior-of-zcolor-in-scatter-and-plot/22412)

<div class="topic-metadata">

**Author:** [@Noel\_Araujo](https://discourse.julialang.org/u/Noel_Araujo)\
**Replies:** 2\
**Last updated:** [May 22, 2020, 5:09pm UTC](https://discourse.julialang.org/t/different-behavior-of-zcolor-in-scatter-and-plot/22412 "2020-05-22T17:09:12Z")

</div>

Hello, I noticed that I can change the color of markers easily in Scatter, but not in Plots. Here an example: using Plots x = 1:0.1:10 y1 = x .+ 1 y2 = x .+ 2 y3 = x .+ 3 scatter(x, y1, color=:reds, zcolor=1) s…

---

## [Using TransformVariables.jl to Numerically Handle Jacobian Adjustment of Simple Problem](https://discourse.julialang.org/t/using-transformvariables-jl-to-numerically-handle-jacobian-adjustment-of-simple-problem/60677)

<div class="topic-metadata">

**Author:** [@Adam\_Fleischhacker](https://discourse.julialang.org/u/Adam_Fleischhacker)\
**Replies:** 1\
**Last updated:** [May 7, 2021, 1:12pm UTC](https://discourse.julialang.org/t/using-transformvariables-jl-to-numerically-handle-jacobian-adjustment-of-simple-problem/60677 "2021-05-07T13:12:19Z")

</div>

Here is a simple generative DAG where a Jacobian adjustment is required to get the logpdf of the posterior distribution for y. I can code this function to work with the DynamicHMC.jl suite of packages if I manually a…

---

## [Prefetch data in a separate thread (or why adding a single print leads to a 2x performance)](https://discourse.julialang.org/t/prefetch-data-in-a-separate-thread-or-why-adding-a-single-print-leads-to-a-2x-performance/60225)

<div class="topic-metadata">

**Author:** [@Alexander-Barth](https://discourse.julialang.org/u/Alexander-Barth)\
**Replies:** 5\
**Last updated:** [May 7, 2021, 6:37am UTC](https://discourse.julialang.org/t/prefetch-data-in-a-separate-thread-or-why-adding-a-single-print-leads-to-a-2x-performance/60225 "2021-05-07T06:37:08Z")

</div>

I am training a neural network where some significant time is spent on the data preparation on the CPU (data augmentation). This results in a relatively low GPU utilization overall because the GPU has to wait for the dat…

---

## [JuMP only for formulation and CPLEX.jl (or Gurobi.jl) as callable library wrapper?](https://discourse.julialang.org/t/jump-only-for-formulation-and-cplex-jl-or-gurobi-jl-as-callable-library-wrapper/60662)

<div class="topic-metadata">

**Author:** [@rocarvaj](https://discourse.julialang.org/u/rocarvaj)\
**Replies:** 2\
**Last updated:** [May 6, 2021, 6:36pm UTC](https://discourse.julialang.org/t/jump-only-for-formulation-and-cplex-jl-or-gurobi-jl-as-callable-library-wrapper/60662 "2021-05-06T18:36:13Z")

</div>

Hello! I’ve read the documentation for both JuMP and CPLEX.jl (the readme page on Github) but I just want to be 100% if it is possible to do the following: Formulate a MILP (using only constraints supported by the sol…

---

## [Get list of columns from formula](https://discourse.julialang.org/t/get-list-of-columns-from-formula/60611)

<div class="topic-metadata">

**Author:** [@jzr](https://discourse.julialang.org/u/jzr)\
**Replies:** 1\
**Last updated:** [May 6, 2021, 6:33pm UTC](https://discourse.julialang.org/t/get-list-of-columns-from-formula/60611 "2021-05-06T18:33:09Z")

</div>

I want to make a dataframe that has only the columns that appear in the formula. How can I get the list of terms from a formula? @formula(y ~ a + b + c \* d + e + e ^ 2) cc @dave.f.kleinschmidt

---

## [CUDNNError: CUDNN\_STATUS\_NOT\_INITIALIZED (code 1) during Pkg.test("CUDA")](https://discourse.julialang.org/t/cudnnerror-cudnn-status-not-initialized-code-1-during-pkg-test-cuda/60431)

<div class="topic-metadata">

**Author:** [@pfarndt](https://discourse.julialang.org/u/pfarndt)\
**Replies:** 5\
**Last updated:** [May 6, 2021, 2:37pm UTC](https://discourse.julialang.org/t/cudnnerror-cudnn-status-not-initialized-code-1-during-pkg-test-cuda/60431 "2021-05-06T14:37:38Z")

</div>

Using Julia v1.6.1 I get several error during testing the CUDA package (v3.1.0). Most of them go back to CUDNNError: CUDNN\_STATUS\_NOT\_INITIALIZED (code 1) - more details below. The corresponding test runs through witho…

---

## [Indicate data outside the plotting area](https://discourse.julialang.org/t/indicate-data-outside-the-plotting-area/60646)

<div class="topic-metadata">

**Author:** [@feanor12](https://discourse.julialang.org/u/feanor12)\
**Replies:** 1\
**Last updated:** [May 6, 2021, 2:18pm UTC](https://discourse.julialang.org/t/indicate-data-outside-the-plotting-area/60646 "2021-05-06T14:18:12Z")

</div>

I was doing some boxplots using StatsPlots and I had some outliers. To show the boxes I used ylims! to better show their distribution, but the outliers were off the plot. Is it possible to show a marker at the side of…

---

## [Which plots backends, currently are the best for article publication?](https://discourse.julialang.org/t/which-plots-backends-currently-are-the-best-for-article-publication/47668)

<div class="topic-metadata">

**Author:** [@SymKo](https://discourse.julialang.org/u/SymKo)\
**Replies:** 32\
**Last updated:** [May 6, 2021, 11:14am UTC](https://discourse.julialang.org/t/which-plots-backends-currently-are-the-best-for-article-publication/47668 "2021-05-06T11:14:31Z")

</div>

Hello everyone, someone published article with charts made in julia? Which backend is the best: poll poll poll poll poll poll Someone know research publication with charts made in julia?

---

## [Simplest way to display a picture in a webapp with Genie.jl](https://discourse.julialang.org/t/simplest-way-to-display-a-picture-in-a-webapp-with-genie-jl/60387)

<div class="topic-metadata">

**Author:** [@sim](https://discourse.julialang.org/u/sim)\
**Replies:** 8\
**Last updated:** [May 6, 2021, 8:58am UTC](https://discourse.julialang.org/t/simplest-way-to-display-a-picture-in-a-webapp-with-genie-jl/60387 "2021-05-06T08:58:29Z")

</div>

Hello, I’m an absolute beginner in Genie.jl and in web stack in general. I want to build a webpage which periodically generates a random picture using some julia code, and displays it. To begin, I want to simply display…

---

## [Allocations and slow perf for Transform! on GroupedDataFrames](https://discourse.julialang.org/t/allocations-and-slow-perf-for-transform-on-groupeddataframes/60594)

<div class="topic-metadata">

**Author:** [@jeremiedb](https://discourse.julialang.org/u/jeremiedb)\
**Replies:** 4\
**Last updated:** [May 6, 2021, 8:58am UTC](https://discourse.julialang.org/t/allocations-and-slow-perf-for-transform-on-groupeddataframes/60594 "2021-05-06T08:58:17Z")

</div>

The transform! operator appears to result in large number of allocation as large slowdown compared to the non-grouped counterpart. using DataFrames using StatsBase: sample using BenchmarkTools df1 = DataFrame(rand(1\_000…

---

## [Multivariate Binomial Variable](https://discourse.julialang.org/t/multivariate-binomial-variable/60617)

<div class="topic-metadata">

**Author:** [@ParadaCarleton](https://discourse.julialang.org/u/ParadaCarleton)\
**Replies:** 0\
**Last updated:** [May 6, 2021, 3:22am UTC](https://discourse.julialang.org/t/multivariate-binomial-variable/60617 "2021-05-06T03:22:44Z")

</div>

I’m trying to build a model for a situation where I have a vector of binomial trials, all of which are correlated. Stan has a useful tutorial for the special case where the trials are all Bernoulli trials and I want to u…

---

## [Multithreading with sparse arrays](https://discourse.julialang.org/t/multithreading-with-sparse-arrays/30844)

<div class="topic-metadata">

**Author:** [@thehalfspace](https://discourse.julialang.org/u/thehalfspace)\
**Replies:** 3\
**Last updated:** [May 6, 2021, 2:53am UTC](https://discourse.julialang.org/t/multithreading-with-sparse-arrays/30844 "2021-05-06T02:53:25Z")

</div>

I am solving a 2D earthquake rupture dynamics problem using a spectral element method. Over the last few months, I have translated a matlab code into Julia, made some changes in the serial part of the code (changing lin…

---

## [Side by side violin plots with VegaLite.jl](https://discourse.julialang.org/t/side-by-side-violin-plots-with-vegalite-jl/60523)

<div class="topic-metadata">

**Author:** [@EvoArt](https://discourse.julialang.org/u/EvoArt)\
**Replies:** 15\
**Last updated:** [May 5, 2021, 8:56pm UTC](https://discourse.julialang.org/t/side-by-side-violin-plots-with-vegalite-jl/60523 "2021-05-05T20:56:43Z")

</div>

Hi I want to present some data to a colleague, whilst also showing off Julia. I have data for an effect that varies according to species and treatment. There are 2 treatments and I would like to display effect sizes as …

---

## [ArrayFire vs AbstractArray performance and future in julia](https://discourse.julialang.org/t/arrayfire-vs-abstractarray-performance-and-future-in-julia/60533)

<div class="topic-metadata">

**Author:** [@DoktorMike](https://discourse.julialang.org/u/DoktorMike)\
**Replies:** 7\
**Last updated:** [May 5, 2021, 6:00pm UTC](https://discourse.julialang.org/t/arrayfire-vs-abstractarray-performance-and-future-in-julia/60533 "2021-05-05T18:00:34Z")

</div>

So I recently ran into ArrayFire and it’s Julia wrapper ArrayFire.jl and was impressed by the performance benchmark. I have not tried it myself and I was wondering if anyone has made any experiments with it and if it’s c…

---

## [Defining MLJ pipelines within a function](https://discourse.julialang.org/t/defining-mlj-pipelines-within-a-function/60552)

<div class="topic-metadata">

**Author:** [@ablaom](https://discourse.julialang.org/u/ablaom)\
**Replies:** 3\
**Last updated:** [May 5, 2021, 5:06pm UTC](https://discourse.julialang.org/t/defining-mlj-pipelines-within-a-function/60552 "2021-05-05T17:06:22Z")

</div>

Question asked on slack: Hello, I’m new to Julia and MLJ. Is there a recommended way to compose models within functions? I tried placing the code from the “ Lightning Tour ” within a function of my own package, however…

---

## [Rdkit in Julia](https://discourse.julialang.org/t/rdkit-in-julia/60582)

<div class="topic-metadata">

**Author:** [@Modatu](https://discourse.julialang.org/u/Modatu)\
**Replies:** 0\
**Last updated:** [May 5, 2021, 2:02pm UTC](https://discourse.julialang.org/t/rdkit-in-julia/60582 "2021-05-05T14:02:23Z")

</div>

Hey Julia-Chemistry community, this could be of interest to all of us: P.S.: I am not the author, I just found the article.

[Previous page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=366)

[Next page](https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=368)