# Latest

**URL:** https://discourse.julialang.org/latest.md?page=328

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

**Page:** 329

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## [Go to definition almost never works](https://discourse.julialang.org/t/go-to-definition-almost-never-works/95363)

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**Author:** [@evan-wehi](https://discourse.julialang.org/u/evan-wehi)\
**Replies:** 13\
**Last updated:** [May 24, 2023, 3:13am UTC](https://discourse.julialang.org/t/go-to-definition-almost-never-works/95363 "2023-05-24T03:13:02Z")

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I know there have been several threads on this topic already. Examples include going to definitions in packages or included definitions. Most of these threads just seem to be dangling with no resolution. In my experienc…

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## [Build PyCall with error in installing miniconda](https://discourse.julialang.org/t/build-pycall-with-error-in-installing-miniconda/118790)

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**Author:** [@lvyuemeng](https://discourse.julialang.org/u/lvyuemeng)\
**Replies:** 21\
**Last updated:** [September 3, 2024, 9:23pm UTC](https://discourse.julialang.org/t/build-pycall-with-error-in-installing-miniconda/118790 "2024-09-03T21:23:29Z")

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When I built PyCall, I found that miniforge can’t be installed on the path with non-ascii chararcters which is my username. So I manually installed the miniforge and set the env. But in this case, julia can’t manage pyth…

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## [Creating fresh environment with latest julia whilst having existing 1.9 enviroment](https://discourse.julialang.org/t/creating-fresh-environment-with-latest-julia-whilst-having-existing-1-9-enviroment/118986)

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**Author:** [@PyJulia](https://discourse.julialang.org/u/PyJulia)\
**Replies:** 4\
**Last updated:** [September 3, 2024, 8:37pm UTC](https://discourse.julialang.org/t/creating-fresh-environment-with-latest-julia-whilst-having-existing-1-9-enviroment/118986 "2024-09-03T20:37:22Z")

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The first time I installed Julia was a 1.9 environment. I now want to create a new project environment with the latest stable Julia version. I used juliaup add 1.11 to add the Julia 1.11 environment. Opening a Julia REPL…

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## [Map! for Zygote.Buffer](https://discourse.julialang.org/t/map-for-zygote-buffer/119007)

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**Author:** [@jar1](https://discourse.julialang.org/u/jar1)\
**Replies:** 0\
**Last updated:** [September 3, 2024, 8:19pm UTC](https://discourse.julialang.org/t/map-for-zygote-buffer/119007 "2024-09-03T20:19:16Z")

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map!(f,y,x) wants y::AbstractArray which means it doesn’t work on Zygote.Buffer. I want to use map! and I’m wondering if that constraint can be removed to solve the problem. using Zygote julia\> let xs = rand(5), ys = Z…

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## [BatchDuplicated functions in Enzyme](https://discourse.julialang.org/t/batchduplicated-functions-in-enzyme/119001)

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**Author:** [@gdalle](https://discourse.julialang.org/u/gdalle)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 7:21pm UTC](https://discourse.julialang.org/t/batchduplicated-functions-in-enzyme/119001 "2024-09-03T19:21:34Z")

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I’m using Enzyme to differentiate through a closure, and BatchDuplicated on the closure itself doesn’t seem to work, unlike Duplicated. using Enzyme struct MyClosure{A} a::A end function (mc::MyClosure)(x) # c…

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## [Devito equivalent](https://discourse.julialang.org/t/devito-equivalent/118736)

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**Author:** [@abuAnat](https://discourse.julialang.org/u/abuAnat)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 4:34pm UTC](https://discourse.julialang.org/t/devito-equivalent/118736 "2024-09-03T16:34:24Z")

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Hello! Is there a package or framework in Julia that is equivalent to the Devito Python package?

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## [ChainRules project looking for a new primary maintainer](https://discourse.julialang.org/t/chainrules-project-looking-for-a-new-primary-maintainer/115636)

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**Author:** [@oxinabox](https://discourse.julialang.org/u/oxinabox)\
**Replies:** 8\
**Last updated:** [September 3, 2024, 4:21pm UTC](https://discourse.julialang.org/t/chainrules-project-looking-for-a-new-primary-maintainer/115636 "2024-09-03T16:21:44Z")

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Hi all, I have been leading the ChainRules project since juliacon 2019. I find myself in circumstances very similar to what Jarret was when he transferred leadership of it to me then – this is a very good thing. As su…

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## [Is this normal things about MvNormal?](https://discourse.julialang.org/t/is-this-normal-things-about-mvnormal/118999)

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**Author:** [@JULIAAAAA](https://discourse.julialang.org/u/JULIAAAAA)\
**Replies:** 5\
**Last updated:** [September 3, 2024, 4:01pm UTC](https://discourse.julialang.org/t/is-this-normal-things-about-mvnormal/118999 "2024-09-03T16:01:00Z")

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Hello, I’m beginner of Julia. When I draw samples from Multivariate Normal, it uses multicores of my computers. Especially, when N \> 63, they uses 8 cores. If this things are normal things, and If I don’t wan’t to use…

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## [Inplace modification of Float64](https://discourse.julialang.org/t/inplace-modification-of-float64/118995)

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**Author:** [@JADekker](https://discourse.julialang.org/u/JADekker)\
**Replies:** 4\
**Last updated:** [September 3, 2024, 3:45pm UTC](https://discourse.julialang.org/t/inplace-modification-of-float64/118995 "2024-09-03T15:45:55Z")

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Hi, I know that things like Float64 are immutable, so I can’t do inplace modification (in my specific situation: I can’t call clamp! on them). I’m writing some code in which I either want to apply a routine on an entire…

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## [TensorBoard for everybody](https://discourse.julialang.org/t/tensorboard-for-everybody/10978)

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**Author:** [@oxinabox](https://discourse.julialang.org/u/oxinabox)\
**Replies:** 2\
**Last updated:** [September 3, 2024, 2:53pm UTC](https://discourse.julialang.org/t/tensorboard-for-everybody/10978 "2024-09-03T14:53:10Z")

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I bundled up a quick proof of concept for having tensorboard outside tensorflow. It utterly cheats because it actually is invoking TensorFlow.jl to do this. It would be possible at some point to build something similar…

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## [How to view intermediate steps in ODESolver during runtime without excess allocations?](https://discourse.julialang.org/t/how-to-view-intermediate-steps-in-odesolver-during-runtime-without-excess-allocations/118676)

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**Author:** [@Rittick\_Roy](https://discourse.julialang.org/u/Rittick_Roy)\
**Replies:** 16\
**Last updated:** [September 3, 2024, 2:51pm UTC](https://discourse.julialang.org/t/how-to-view-intermediate-steps-in-odesolver-during-runtime-without-excess-allocations/118676 "2024-09-03T14:51:36Z")

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I am new to Julia and have been solving an ODE problem using the integrator interface. I want to view the intermediate steps (and use the intermediate steps in another function to perform some calculations) as the integr…

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## [Set up pipe between existing Julia processes](https://discourse.julialang.org/t/set-up-pipe-between-existing-julia-processes/118960)

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**Author:** [@lmtzx9h4qqnt](https://discourse.julialang.org/u/lmtzx9h4qqnt)\
**Replies:** 6\
**Last updated:** [September 3, 2024, 2:43pm UTC](https://discourse.julialang.org/t/set-up-pipe-between-existing-julia-processes/118960 "2024-09-03T14:43:31Z")

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Is there a way to set up a pipe between two Julia process that are already running, assuming that the two already have another method of communication to execute code (example: worker process on the same machine started …

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## [NaN Values for j \> 1700 in Quantum Fisher Information Calculation using QuantumOptics](https://discourse.julialang.org/t/nan-values-for-j-1700-in-quantum-fisher-information-calculation-using-quantumoptics/118923)

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**Author:** [@Dawn](https://discourse.julialang.org/u/Dawn)\
**Replies:** 9\
**Last updated:** [September 3, 2024, 2:38pm UTC](https://discourse.julialang.org/t/nan-values-for-j-1700-in-quantum-fisher-information-calculation-using-quantumoptics/118923 "2024-09-03T14:38:00Z")

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I’m calculating the Quantum Fisher Information (QFI) for the kicked top system using the QuantumOptics package in Julia. The code works fine for initial states with j up to 1700, but when I increase j to 1800 or higher, …

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## [Simplifying Symbolics.jl expression](https://discourse.julialang.org/t/simplifying-symbolics-jl-expression/118935)

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**Author:** [@Alseidon](https://discourse.julialang.org/u/Alseidon)\
**Replies:** 2\
**Last updated:** [September 3, 2024, 2:12pm UTC](https://discourse.julialang.org/t/simplifying-symbolics-jl-expression/118935 "2024-09-03T14:12:28Z")

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I’m adding to the list of posts about simplifying a Symbolics.jl expression, but I wanted to check if I did something wrong or if it is an internal limitation. I want to check if two (lengthy) expressions are identical, …

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## [Taking the intersection of Semialgebraic Sets for Sum of Squares Optimization](https://discourse.julialang.org/t/taking-the-intersection-of-semialgebraic-sets-for-sum-of-squares-optimization/118826)

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**Author:** [@Xifan\_Yu](https://discourse.julialang.org/u/Xifan_Yu)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 2:00pm UTC](https://discourse.julialang.org/t/taking-the-intersection-of-semialgebraic-sets-for-sum-of-squares-optimization/118826 "2024-09-03T14:00:18Z")

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Hi, I am trying to construct a semialgebraic set using package SumOfSquares, which involves a mixture of equality and inequality that would be easier to describe by a for loop. Is there an easy way for me to take the in…

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## [Change depth of sidebar in Documenter](https://discourse.julialang.org/t/change-depth-of-sidebar-in-documenter/5317)

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**Author:** [@Diego\_Javier\_Zea](https://discourse.julialang.org/u/Diego_Javier_Zea)\
**Replies:** 4\
**Last updated:** [September 3, 2024, 1:44pm UTC](https://discourse.julialang.org/t/change-depth-of-sidebar-in-documenter/5317 "2024-09-03T13:44:49Z")

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The sidebar of documenter has depth equal to 2 (that’s the default) and I want to set the depth of that menu to 3. How can I do that? Best regards

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## [Julia-based Makefile replacement for research workflows](https://discourse.julialang.org/t/julia-based-makefile-replacement-for-research-workflows/74368)

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**Author:** [@goerz](https://discourse.julialang.org/u/goerz)\
**Replies:** 7\
**Last updated:** [September 3, 2024, 1:17pm UTC](https://discourse.julialang.org/t/julia-based-makefile-replacement-for-research-workflows/74368 "2024-09-03T13:17:45Z")

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I’m playing around with DrWatson to organize research workflows. It feels like it would be nice to also have a Makefile in a project repository that defines which scripts produce which output file. The idea would be to s…

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## [Multiple shooting with multiple trajectories: how to properly implement this?](https://discourse.julialang.org/t/multiple-shooting-with-multiple-trajectories-how-to-properly-implement-this/118715)

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**Author:** [@PyJulia](https://discourse.julialang.org/u/PyJulia)\
**Replies:** 2\
**Last updated:** [September 3, 2024, 1:00pm UTC](https://discourse.julialang.org/t/multiple-shooting-with-multiple-trajectories-how-to-properly-implement-this/118715 "2024-09-03T13:00:25Z")

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DiffEq has a tutorial on multiple shooting for neural ode’s. It works for a single trajectory. I have a dataset with several trajectories, each trajectory being a solution to a differential equation with different initia…

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## [Postdoc position in molecular dynamics simulations (Brazil)](https://discourse.julialang.org/t/postdoc-position-in-molecular-dynamics-simulations-brazil/118991)

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**Author:** [@lmiq](https://discourse.julialang.org/u/lmiq)\
**Replies:** 0\
**Last updated:** [September 3, 2024, 12:50pm UTC](https://discourse.julialang.org/t/postdoc-position-in-molecular-dynamics-simulations-brazil/118991 "2024-09-03T12:50:25Z")

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Post-Doctoral positions: Molecular Dynamics Simulations Applications must be performed in the following form: \[APPLICATION FORM\] The Center for Computing in Engineering and Sciences (CCES) at UNICAMP is seeking to fill …

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## [GeoIO plotting in a map](https://discourse.julialang.org/t/geoio-plotting-in-a-map/118982)

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**Author:** [@imantha](https://discourse.julialang.org/u/imantha)\
**Replies:** 4\
**Last updated:** [September 3, 2024, 11:59am UTC](https://discourse.julialang.org/t/geoio-plotting-in-a-map/118982 "2024-09-03T11:59:40Z")

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I am wondering if there is a possibility to plot a shapefile loaded using GeoIO in map ? using GeoIO df\_lo = GeoIO.load("data/processed/low/us\_division\_2018/us\_division\_2018.shp") df\_hi = GeoIO.load("data/processed/high…

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## [How go back one release with juliaup](https://discourse.julialang.org/t/how-go-back-one-release-with-juliaup/118984)

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**Author:** [@pao](https://discourse.julialang.org/u/pao)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 11:30am UTC](https://discourse.julialang.org/t/how-go-back-one-release-with-juliaup/118984 "2024-09-03T11:30:08Z")

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Hi, guys, I have installed my latest Julia releases with juliaup. Below is my status. How go back to the previous release (1.10.4+0.x64.apple.darwin14 ) ? I suppose just one commend is sufficient … but I was unable …

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## [Correct use of @spawn with data frames](https://discourse.julialang.org/t/correct-use-of-spawn-with-data-frames/118921)

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**Author:** [@kobusherbst](https://discourse.julialang.org/u/kobusherbst)\
**Replies:** 2\
**Last updated:** [September 3, 2024, 11:15am UTC](https://discourse.julialang.org/t/correct-use-of-spawn-with-data-frames/118921 "2024-09-03T11:15:46Z")

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I am new to multithreading, I have the following snippet of code: memberships = table\_read(db, "IndividualMemberships") sort!(memberships, \[:IndividualId, :HouseholdId, :StartDate\]) gdf\_memberships = groupby(memberships…

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## [MTK: connection of flow variable forces it to zero](https://discourse.julialang.org/t/mtk-connection-of-flow-variable-forces-it-to-zero/118976)

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**Author:** [@hexaeder](https://discourse.julialang.org/u/hexaeder)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 10:56am UTC](https://discourse.julialang.org/t/mtk-connection-of-flow-variable-forces-it-to-zero/118976 "2024-09-03T10:56:21Z")

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Hello, I encountered some problem in MTK which I could recreate in the following MWE: using Pkg pkg"activate --temp" pkg"add ModelingToolkit" using ModelingToolkit using ModelingToolkit: t\_nounits as t, D\_nounits as Dt…

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## [Precompilation warning - in which package should it be fixed?](https://discourse.julialang.org/t/precompilation-warning-in-which-package-should-it-be-fixed/118520)

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**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 9\
**Last updated:** [September 3, 2024, 10:36am UTC](https://discourse.julialang.org/t/precompilation-warning-in-which-package-should-it-be-fixed/118520 "2024-09-03T10:36:47Z")

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If I run the following script: #!/bin/bash -eu rm -rf /tmp/testdepot mkdir /tmp/testdepot rm -rf /tmp/test mkdir /tmp/test cd /tmp/test export JULIA\_DEPOT\_PATH=/tmp/testdepot julia --project="." -e "using Pkg; Pkg.add(…

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## [CSV, DataFrame read data file with string and Float64 columns](https://discourse.julialang.org/t/csv-dataframe-read-data-file-with-string-and-float64-columns/118980)

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**Author:** [@Xiu-Lei](https://discourse.julialang.org/u/Xiu-Lei)\
**Replies:** 3\
**Last updated:** [September 3, 2024, 10:13am UTC](https://discourse.julialang.org/t/csv-dataframe-read-data-file-with-string-and-float64-columns/118980 "2024-09-03T10:13:57Z")

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I would like to read this data file \[first row is title\], containing string in the first column, and float64 in the following columns, " id aMphi aMoctet a\*Mdecuplet A651 0.27507 0…

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## [CUDA and estimation of parameters of a Differential Equation](https://discourse.julialang.org/t/cuda-and-estimation-of-parameters-of-a-differential-equation/118941)

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**Author:** [@Marta\_Pardo\_Araujo](https://discourse.julialang.org/u/Marta_Pardo_Araujo)\
**Replies:** 1\
**Last updated:** [September 3, 2024, 9:29am UTC](https://discourse.julialang.org/t/cuda-and-estimation-of-parameters-of-a-differential-equation/118941 "2024-09-03T09:29:58Z")

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I am trying to estimate three parameters of a ODE system with 368 equations couple. Since it is a big system I have decided to use CUDA as recommeded by other colleagues to speed up the process. Because the ODE is writte…

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## [Retrieve unevaluated symbol inside \`@eval\`](https://discourse.julialang.org/t/retrieve-unevaluated-symbol-inside-eval/118978)

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**Author:** [@gdalle](https://discourse.julialang.org/u/gdalle)\
**Replies:** 1\
**Last updated:** [September 3, 2024, 9:23am UTC](https://discourse.julialang.org/t/retrieve-unevaluated-symbol-inside-eval/118978 "2024-09-03T09:23:56Z")

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In one of my packages I use @eval to define a list of functions in a loop based on symbols. I would also like to use the symbol without evaluating it, but I can’t figure out how. Maybe it’s an XY problem? julia\> for s i…

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## [Testing Julia 1.10.5: Circular dependency detected warning](https://discourse.julialang.org/t/testing-julia-1-10-5-circular-dependency-detected-warning/118723)

<div class="topic-metadata">

**Author:** [@ufechner7](https://discourse.julialang.org/u/ufechner7)\
**Replies:** 16\
**Last updated:** [September 3, 2024, 8:59am UTC](https://discourse.julialang.org/t/testing-julia-1-10-5-circular-dependency-detected-warning/118723 "2024-09-03T08:59:48Z")

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Just installed Julia 1.10.5, and I am getting new warnings: ┌ Warning: Circular dependency detected. Precompilation will be skipped for: │ CSV \[336ed68f-0bac-5ca0-87d4-7b16caf5d00b\] │ FilePathsBaseTestExt \[36f6b4e4-…

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## [Chinese software MWROKS](https://discourse.julialang.org/t/chinese-software-mwroks/118975)

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**Author:** [@liu20001028](https://discourse.julialang.org/u/liu20001028)\
**Replies:** 2\
**Last updated:** [September 3, 2024, 7:31am UTC](https://discourse.julialang.org/t/chinese-software-mwroks/118975 "2024-09-03T07:31:11Z")

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“China has a software called MWORKS. You might want to pay attention to this. MWORKS is a scientific computing platform based on the Julia language, which is about to be widely promoted in China. It is hoped that this wi…

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## [Loading arbitrary user code in a package (including imports)](https://discourse.julialang.org/t/loading-arbitrary-user-code-in-a-package-including-imports/118917)

<div class="topic-metadata">

**Author:** [@lmtzx9h4qqnt](https://discourse.julialang.org/u/lmtzx9h4qqnt)\
**Replies:** 8\
**Last updated:** [September 3, 2024, 4:56am UTC](https://discourse.julialang.org/t/loading-arbitrary-user-code-in-a-package-including-imports/118917 "2024-09-03T04:56:50Z")

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I don’t really see a way how this is possible, but just to make sure that I’m not missing anything – I have a package with the following function, which takes a user-supplied .jl file and includes it in an ad-hoc module: …

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