# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1425

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

**Page:** 1426

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## [The REPL and character display](https://discourse.julialang.org/t/the-repl-and-character-display/59269)

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**Author:** [@Hermes](https://discourse.julialang.org/u/Hermes)\
**Replies:** 5\
**Last updated:** [April 14, 2021, 7:23pm UTC](https://discourse.julialang.org/t/the-repl-and-character-display/59269 "2021-04-14T19:23:09Z")

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What should I install so that in Julia REPL, symbols and special characters can be correctly seen. In the figure I show what happens: However in VS Code Terminal, the characters and symbols are correctly seen jul…

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## [Gurobi with StochasticPrograms.jl](https://discourse.julialang.org/t/gurobi-with-stochasticprograms-jl/59139)

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**Author:** [@arfuentes97](https://discourse.julialang.org/u/arfuentes97)\
**Replies:** 8\
**Last updated:** [April 14, 2021, 4:31pm UTC](https://discourse.julialang.org/t/gurobi-with-stochasticprograms-jl/59139 "2021-04-14T16:31:35Z")

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Hi there, I’m trying to use Gurobi solver to optimize the farmer problem proposed in StochasticPrograms.jl and I get the following error message: ERROR: MethodError: no method matching all\_decisions(::DeterministicEqui…

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## [Show(io, i::Int) allocates](https://discourse.julialang.org/t/show-io-i-int-allocates/59259)

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**Author:** [@green.nsk](https://discourse.julialang.org/u/green.nsk)\
**Replies:** 8\
**Last updated:** [April 14, 2021, 4:19pm UTC](https://discourse.julialang.org/t/show-io-i-int-allocates/59259 "2021-04-14T16:19:24Z")

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This was unexpected, but show(io::IO, i::Int) does allocate. It’s clearly happening because printing an integer first converts it to a string and then writes a string to io: julia/show.jl at v1.6.0 · JuliaLang/julia · G…

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## [Vectors vs. Tuples and multiple dispatch](https://discourse.julialang.org/t/vectors-vs-tuples-and-multiple-dispatch/59281)

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**Author:** [@jbshannon](https://discourse.julialang.org/u/jbshannon)\
**Replies:** 3\
**Last updated:** [April 14, 2021, 3:52pm UTC](https://discourse.julialang.org/t/vectors-vs-tuples-and-multiple-dispatch/59281 "2021-04-14T15:52:08Z")

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This is my first major project in Julia and I have a core function that will be evaluated many times that I want to optimize. The function accepts a vector and returns a vector, but I only anticipate using it with vector…

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## [DifferentialEquations.jl Solution handling with ArrayPartition?](https://discourse.julialang.org/t/differentialequations-jl-solution-handling-with-arraypartition/59279)

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**Author:** [@Antomek](https://discourse.julialang.org/u/Antomek)\
**Replies:** 1\
**Last updated:** [April 14, 2021, 3:07pm UTC](https://discourse.julialang.org/t/differentialequations-jl-solution-handling-with-arraypartition/59279 "2021-04-14T15:07:19Z")

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Hello everyone, I have a very simple question, yet one I can’t seem to work out easily. Is there a straighforward way to access the different parts of an ArrayPartition solution that we have obtained with DifferentialE…

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## [Adding noise in frequency domain while solving an SPDE](https://discourse.julialang.org/t/adding-noise-in-frequency-domain-while-solving-an-spde/59240)

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**Author:** [@tiago](https://discourse.julialang.org/u/tiago)\
**Replies:** 3\
**Last updated:** [April 14, 2021, 2:35pm UTC](https://discourse.julialang.org/t/adding-noise-in-frequency-domain-while-solving-an-spde/59240 "2021-04-14T14:35:45Z")

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Hello, I’m implementing a numerical solver to a certain kind of a 2D stochastic PDE using Fourier Transforms. So, this solver is a Galerkin type method, which means that choosing the right basis functions I can apply F…

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## [Ordered TOML?](https://discourse.julialang.org/t/ordered-toml/59278)

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**Author:** [@Amval](https://discourse.julialang.org/u/Amval)\
**Replies:** 3\
**Last updated:** [April 14, 2021, 2:28pm UTC](https://discourse.julialang.org/t/ordered-toml/59278 "2021-04-14T14:28:03Z")

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Hello everyone, I am on the process of upgrading to Julia 1.6, which includes a TOML package as part of the base libraries. Before, I was using my own TOMLpackage, forked from here to returned an OrderedDict instead of…

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## [Julia on Raspberry Pi: error building HDF5 package](https://discourse.julialang.org/t/julia-on-raspberry-pi-error-building-hdf5-package/29903)

<div class="topic-metadata">

**Author:** [@sairus7](https://discourse.julialang.org/u/sairus7)\
**Replies:** 47\
**Last updated:** [April 14, 2021, 2:25pm UTC](https://discourse.julialang.org/t/julia-on-raspberry-pi-error-building-hdf5-package/29903 "2021-04-14T14:25:19Z")

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I’ve installed Julia language on Raspberry Pi as mentioned here: But then trying to \]add HDF5 the following error appears: (v1.2) pkg\> add HDF5 Resolving package versions... Installed CMakeWrapper ─────── v0.2.3 In…

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## [Separate array elements without adding spaces](https://discourse.julialang.org/t/separate-array-elements-without-adding-spaces/59191)

<div class="topic-metadata">

**Author:** [@Arif\_Baloch](https://discourse.julialang.org/u/Arif_Baloch)\
**Replies:** 4\
**Last updated:** [April 14, 2021, 2:20pm UTC](https://discourse.julialang.org/t/separate-array-elements-without-adding-spaces/59191 "2021-04-14T14:20:28Z")

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can anyone tell me how to separate the elements of an array automatically.e.g A=\[1234\] to A=\[1 2 3 4\] without giving any space

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## [Recommended workflow to prepare a package to use it as a dll with PackageCompiler.jl](https://discourse.julialang.org/t/recommended-workflow-to-prepare-a-package-to-use-it-as-a-dll-with-packagecompiler-jl/59260)

<div class="topic-metadata">

**Author:** [@BambOoxX](https://discourse.julialang.org/u/BambOoxX)\
**Replies:** 0\
**Last updated:** [April 14, 2021, 9:42am UTC](https://discourse.julialang.org/t/recommended-workflow-to-prepare-a-package-to-use-it-as-a-dll-with-packagecompiler-jl/59260 "2021-04-14T09:42:40Z")

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I am currently trying to compile one of my packages for use as dll with PackageCompiler.jl. This somewhat a follow up post of Package Compiler error when reproducing documentation example, yet more generic. During the …

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## [Parallel computing for eigs() function](https://discourse.julialang.org/t/parallel-computing-for-eigs-function/22926)

<div class="topic-metadata">

**Author:** [@saeed](https://discourse.julialang.org/u/saeed)\
**Replies:** 10\
**Last updated:** [April 14, 2021, 12:45pm UTC](https://discourse.julialang.org/t/parallel-computing-for-eigs-function/22926 "2021-04-14T12:45:46Z")

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Hello, I am new to julia and parallel computing. I want to use parallel computing capability in julia in doing shift-invert calculations. My problem is that I have a couple of sparse matrices, and want to find specific e…

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## [Adding related work to a multilevel Turing model](https://discourse.julialang.org/t/adding-related-work-to-a-multilevel-turing-model/59182)

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**Author:** [@rikh](https://discourse.julialang.org/u/rikh)\
**Replies:** 4\
**Last updated:** [April 14, 2021, 12:43pm UTC](https://discourse.julialang.org/t/adding-related-work-to-a-multilevel-turing-model/59182 "2021-04-14T12:43:50Z")

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Suppose that we have fitted a multilevel model over data from multiple groups called A, B, C and D and that we’re trying to estimate the population means for these 4 groups. For example, this could look something like th…

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## [LoadError: ArgumentError: syntax df\[column\] is not supported use df\[!, column\] instead](https://discourse.julialang.org/t/loaderror-argumenterror-syntax-df-column-is-not-supported-use-df-column-instead/59235)

<div class="topic-metadata">

**Author:** [@Sebastian\_Mena](https://discourse.julialang.org/u/Sebastian_Mena)\
**Replies:** 1\
**Last updated:** [April 14, 2021, 12:23pm UTC](https://discourse.julialang.org/t/loaderror-argumenterror-syntax-df-column-is-not-supported-use-df-column-instead/59235 "2021-04-14T12:23:43Z")

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Hi, I want to create a dictionary that contains other dictionaries. The code is as follows: df\_events\_sim = DataFrame(XLSX.readtable("path/df\_events\_sim.xlsx","Sheet1")...) df\_betas\_duels = DataFrame(XLSX.readtable("p…

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## [Calling several functions inside a function?](https://discourse.julialang.org/t/calling-several-functions-inside-a-function/59270)

<div class="topic-metadata">

**Author:** [@marianoarnaiz](https://discourse.julialang.org/u/marianoarnaiz)\
**Replies:** 2\
**Last updated:** [April 14, 2021, 12:13pm UTC](https://discourse.julialang.org/t/calling-several-functions-inside-a-function/59270 "2021-04-14T12:13:38Z")

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Hi everyone. I was wondering if you guys can point me in the right direction here. I have quite a few functions with a bunch of inputs and outputs. I just wanted to make one that would help me organize them. The inner f…

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## [Tool for making program analysis and debugging manageable](https://discourse.julialang.org/t/tool-for-making-program-analysis-and-debugging-manageable/59002)

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**Author:** [@mgkuhn](https://discourse.julialang.org/u/mgkuhn)\
**Replies:** 1\
**Last updated:** [April 14, 2021, 11:51am UTC](https://discourse.julialang.org/t/tool-for-making-program-analysis-and-debugging-manageable/59002 "2021-04-14T11:51:00Z")

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In his JuliaCon 2018 talk “Tools for making program analysis and debugging manageable”, @jameson demonstrated a pretty cool browser-based tool for visualizing from profiling information how source, IR and assembler line…

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## [Async usage](https://discourse.julialang.org/t/async-usage/59218)

<div class="topic-metadata">

**Author:** [@LinasBa](https://discourse.julialang.org/u/LinasBa)\
**Replies:** 2\
**Last updated:** [April 14, 2021, 11:43am UTC](https://discourse.julialang.org/t/async-usage/59218 "2021-04-14T11:43:48Z")

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Hello, I’m trying to use Telegram API with asyncronous programming. My program basically validates logs for specifeid arguments. My first attempt was: using Telegram, Random # validation is IO bound log checking func…

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## [How to get the "automatic documentation text" when documentation has been defined?](https://discourse.julialang.org/t/how-to-get-the-automatic-documentation-text-when-documentation-has-been-defined/59258)

<div class="topic-metadata">

**Author:** [@maajdl](https://discourse.julialang.org/u/maajdl)\
**Replies:** 2\
**Last updated:** [April 14, 2021, 10:32am UTC](https://discourse.julialang.org/t/how-to-get-the-automatic-documentation-text-when-documentation-has-been-defined/59258 "2021-04-14T10:32:02Z")

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Hello I do like the automatically generated documentation like this: No documentation found. ThinkWare.idea is a Function. # 6 methods for generic function "idea": \[1\] idea(mx::Mixture) in ThinkWare at C:\\Users\\Rodin…

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## [Cannot include Neptune.jl](https://discourse.julialang.org/t/cannot-include-neptune-jl/59185)

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**Author:** [@emmettgb](https://discourse.julialang.org/u/emmettgb)\
**Replies:** 11\
**Last updated:** [April 14, 2021, 7:50am UTC](https://discourse.julialang.org/t/cannot-include-neptune-jl/59185 "2021-04-14T07:50:05Z")

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I have been unable to use the include method on Neptune.jl exclusively, below is my terminal session. emmett@y700:~$ cd dev emmett@y700:~/dev$ julia \_ \_ \_ \_(\_)\_ | Documentation: https://docs…

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## [Package Compiler error when reproducing documentation example](https://discourse.julialang.org/t/package-compiler-error-when-reproducing-documentation-example/58926)

<div class="topic-metadata">

**Author:** [@BambOoxX](https://discourse.julialang.org/u/BambOoxX)\
**Replies:** 8\
**Last updated:** [April 14, 2021, 7:07am UTC](https://discourse.julialang.org/t/package-compiler-error-when-reproducing-documentation-example/58926 "2021-04-14T07:07:41Z")

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While trying to reproduce the first example to create a sysimage with PackageCompiler.jl, I got a fatal: error thrown and no exception handler available. ReadOnlyMemoryError() memcpy at C:\\windows\\System32\\msvcrt.dll (u…

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## [Auckland Julia meetup #3, Wednesday April 14](https://discourse.julialang.org/t/auckland-julia-meetup-3-wednesday-april-14/59082)

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**Author:** [@mortenpi](https://discourse.julialang.org/u/mortenpi)\
**Replies:** 3\
**Last updated:** [April 14, 2021, 5:45am UTC](https://discourse.julialang.org/t/auckland-julia-meetup-3-wednesday-april-14/59082 "2021-04-14T05:45:35Z")

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Tēnā koutou, We’re happy to announce the third Auckland Julia meetup, taking place already this Wednesday, 14 April at 6:00pm (NZST), at the University of Auckland (Department of Physics, Building 303, Level 6, Room 610…

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## [How to interact til an inspectDR plot](https://discourse.julialang.org/t/how-to-interact-til-an-inspectdr-plot/59024)

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**Author:** [@TheLateKronos](https://discourse.julialang.org/u/TheLateKronos)\
**Replies:** 6\
**Last updated:** [April 14, 2021, 5:04am UTC](https://discourse.julialang.org/t/how-to-interact-til-an-inspectdr-plot/59024 "2021-04-14T05:04:59Z")

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Tagging @MA\_Laforge I have just discovered inspectDR, and it looks PERFECT for my needs - quick and interactive plotting for learning. It feels quick and snappy, and looks pretty good. The functionality of finding slop…

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## [Closest integer to a float number](https://discourse.julialang.org/t/closest-integer-to-a-float-number/59243)

<div class="topic-metadata">

**Author:** [@mleprovost](https://discourse.julialang.org/u/mleprovost)\
**Replies:** 7\
**Last updated:** [April 14, 2021, 4:45am UTC](https://discourse.julialang.org/t/closest-integer-to-a-float-number/59243 "2021-04-14T04:45:49Z")

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Hello, I would like to apply a certain operation when my time variable t becomes a multiple of t0. Is there a robust way to implement this? I think this boils down to check whether t/t0 is an integer in a robust fashio…

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## [\[ANN\] Expronicon.jl - meta programming made easy](https://discourse.julialang.org/t/ann-expronicon-jl-meta-programming-made-easy/57765)

<div class="topic-metadata">

**Author:** [@Roger-luo](https://discourse.julialang.org/u/Roger-luo)\
**Replies:** 2\
**Last updated:** [April 6, 2021, 5:58am UTC](https://discourse.julialang.org/t/ann-expronicon-jl-meta-programming-made-easy/57765 "2021-04-06T05:58:41Z")

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I created a new package Expronicon.jl to wrap up some meta-programming tools on Julia’s Expr I wrote in the past year using MLStyle The goal of Expronicon is to serve as a stdlib for MLStyle for meta programming Julia Ex…

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## [Maximizing an objective function with many logs](https://discourse.julialang.org/t/maximizing-an-objective-function-with-many-logs/59227)

<div class="topic-metadata">

**Author:** [@dadada\_dadada](https://discourse.julialang.org/u/dadada_dadada)\
**Replies:** 6\
**Last updated:** [April 14, 2021, 2:21am UTC](https://discourse.julialang.org/t/maximizing-an-objective-function-with-many-logs/59227 "2021-04-14T02:21:34Z")

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Hi, I have a conceptually simple objective function (an MLE estimator) that has a lot of logs. This kind of objective function is very common in Statistics and Economics. For example, consider the following objective f…

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## [\[ANN\] ExproniconLite.jl - the MLStyle generated dependency free package for low latency](https://discourse.julialang.org/t/ann-exproniconlite-jl-the-mlstyle-generated-dependency-free-package-for-low-latency/59247)

<div class="topic-metadata">

**Author:** [@Roger-luo](https://discourse.julialang.org/u/Roger-luo)\
**Replies:** 0\
**Last updated:** [April 14, 2021, 1:23am UTC](https://discourse.julialang.org/t/ann-exproniconlite-jl-the-mlstyle-generated-dependency-free-package-for-low-latency/59247 "2021-04-14T01:23:10Z")

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I’m excited to announce a new package ExproniconLite that is generated by the Expronicon package I announced previously: unfortunately, depending on MLStyle itself will cause a small loading latency which can be unple…

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## [Pyplot and conda problems](https://discourse.julialang.org/t/pyplot-and-conda-problems/59229)

<div class="topic-metadata">

**Author:** [@gideonsimpson](https://discourse.julialang.org/u/gideonsimpson)\
**Replies:** 10\
**Last updated:** [April 14, 2021, 1:23am UTC](https://discourse.julialang.org/t/pyplot-and-conda-problems/59229 "2021-04-14T01:23:02Z")

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Something seems to have gone wrong with my conda/julia setup. The following commands: using Plots pyplot() now generate the error: InitError: PyError (PyImport\_ImportModule The Python package matplotlib.pyplot could…

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## [Tests don'r run anymore because "sourcepath !== nothing"](https://discourse.julialang.org/t/tests-donr-run-anymore-because-sourcepath-nothing/58959)

<div class="topic-metadata">

**Author:** [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Replies:** 10\
**Last updated:** [April 14, 2021, 12:24am UTC](https://discourse.julialang.org/t/tests-donr-run-anymore-because-sourcepath-nothing/58959 "2021-04-14T00:24:01Z")

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This happened first with Julia 1.5, now with Julia 1.6, i only have left Julia-DEV (@tomls) pkg\> test GMT ERROR: AssertionError: sourcepath !== nothing Stacktrace: \[1\] is\_package\_downloaded(ctx::Pkg.Types.Context, pkg…

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## [.julia shared](https://discourse.julialang.org/t/julia-shared/59213)

<div class="topic-metadata">

**Author:** [@marllos](https://discourse.julialang.org/u/marllos)\
**Replies:** 11\
**Last updated:** [April 13, 2021, 10:31pm UTC](https://discourse.julialang.org/t/julia-shared/59213 "2021-04-13T22:31:14Z")

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Hello everyone! My question is the following: How do I modify the location of .julia so that it is available to all users on the system? Say I choose location: /usr/local/.julia, then when a user does a pkg\> add package,…

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## [Can't use Zygote.gradient on Symbolics.jl Matrix Functions](https://discourse.julialang.org/t/cant-use-zygote-gradient-on-symbolics-jl-matrix-functions/59225)

<div class="topic-metadata">

**Author:** [@jbu](https://discourse.julialang.org/u/jbu)\
**Replies:** 3\
**Last updated:** [April 13, 2021, 10:30pm UTC](https://discourse.julialang.org/t/cant-use-zygote-gradient-on-symbolics-jl-matrix-functions/59225 "2021-04-13T22:30:16Z")

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When using a matrix function generated using Symbolics.jl variables, I get the error Mutating arrays is not supported when trying to autodifferentiate through the matrix function with either Zygote.gradient or Zygote.jac…

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## [GPU and Thread-Parallel Support for Turing.jl](https://discourse.julialang.org/t/gpu-and-thread-parallel-support-for-turing-jl/58958)

<div class="topic-metadata">

**Author:** [@Koshroy](https://discourse.julialang.org/u/Koshroy)\
**Replies:** 1\
**Last updated:** [April 13, 2021, 10:03pm UTC](https://discourse.julialang.org/t/gpu-and-thread-parallel-support-for-turing-jl/58958 "2021-04-13T22:03:20Z")

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Hey all, I’m a bit new to the Julia ecosystem and had a couple questions that some searching around didn’t answer: Is there a way to use the GPU to sample for Turing.jl models? And if there isn’t, is there a way to tr…

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