Detect space
hi all i try to detect space in string, if i have “Hello World , i need to detect the index i , in python i just look for if arr[i] ==” " put here it doesn’t work. function lengthOfLastWord(arr)...
View ArticleMakie in Jupyter?
I’m trying to install and use Makie in a Jupyter notebook: No luck. Tried the installation of WGLMakie: No luck. Does anyone have this working on a Windows10 machine? If it helps, the code below...
View ArticleHow to set a custom theme in Plots.jl
Hi, I’m new to Julia and I want to setup a custom plotting theme. I’ve checked here http://docs.juliaplots.org/latest/generated/plotthemes/ and it points to the package PlotThemes...
View ArticleIteration reverse in for loop
hi all in python if i want to track reverse through the for loop i write this for i in range(len(digits)-1,-1,-1): there is some thing similar in julia ? 4 posts - 3 participants Read full topic
View ArticleAdd two binary numbers
i need to add two binary number. in the first place how i display a binary number in julia ? i try a lot things but doesn’t work like , parse(Int,"111",2) or Int(0b110111) in python the code is like...
View ArticleProblems encountered in installing Pkg for the first time
julia> using Pkg julia> Pkg.add(“PyPlot”) Updating registry at C:\Users\Administrator\.juliapro\JuliaPro_v1.4.2-1\registries\JuliaPro Cannot reach authentication server at...
View ArticleFields of an anonymous function?
Looking at some examples of a package I came across this type of behavior: function f(n) a = n x -> x^a end g = f(2) g.a # 2 Can someone point out where that is documented? 9 posts - 4 participants...
View ArticlePoor results using WriteVTK?
Hello! I have made a very simple code to save point data + one point data array: using WriteVTK using Random using Test function write_vtp(filename::String, points, attribute) polys =...
View ArticleMerge to number
hi all i have two arrays a and b find the maximum between a[i] and b[i] and return it if i have a = [1,5,9,2] and b =[3,3,7,8,6,4] the output will be res = [3,5,9,8,6,4] it is easy i know but i don’t...
View ArticleRecommendation for thread-safe file access (ex .jld2)
I have a for loop that uses the @threads macro, here is a simple example: Threads.@threads for i in 1:10 checks = load("myfile.jld2")["checks"] push!(checks,(i,i+1)) @save "myfile.jld2" checks end...
View ArticleStruggling to implement Tables.jl interface (again)
Sorry for the post, it is very similar to previous ones but I just cannot get it to work. I am trying to implement a Tables.jl interface for a Vector{JSON3.Object}. Here is my effort so far: struct...
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Number of threads available seems random (using @spawn)
I am trying to use @spawn to parallelize a computation, but I am experiencing some problems which I do not understand. Here is the simplest code with which I could reproduce the issue: using Dates...
View ArticleAny one know lua language
i need to convert some code from julia to lua using hash map any one ? 2 posts - 2 participants Read full topic
View ArticleSplit-Apply-Combine on many columns at once? Looking for equivalent to...
Hi all, I’ve got a dataset with multiple rows per individual that I would like to collapse to one row per individual, but I want to retain a variety of information for each individual (e.g. their sex,...
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Best practice for channels that use HDF5 (seems like race is still an issue...
I’m about to submit some jobs that use following “emergency backup” scheme (see MWE testBackup.jl below). I learned the hard way after loosing some data on a job that was submitted to our cluster, due...
View ArticleMulti-threading changing results
Hello, I’m doing some parallel loops in my code using multi-threading. As I was reviewing my results, I noticed that I kept having different results in a piece of code, although the input data was...
View ArticleMeta.parse supports interpolation?
It is confusing for me when I use Meta.parse() function as: Julia> x = 2 Julia> Meta.parse(":(:(v = $x))") :($(Expr(:quote,:($(Expr(quote,:(v = 2))))))) In general, an interpolation with single...
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Plotting bug in VS Code plot pane
I am running on a server without sudo access. When I plot in VS Code (using ctrl-enter), I get the following error: julia> p = plot(rand(100))...
View ArticleERROR: Unsatisfiable requirements detected for package Unitful
Hi. I’m getting this error when adding the NeuralPDE Pkg. I’m using Julia 1.5 (also tried on 1.0.5 and 1.4.2 and I get a similar log). I don’t know how to interpret it. Any help will be highly...
View ArticleHow to get the date of a file?
Hello, I’m very new to Julia. I try to get the last updated date of a list of file, for that I use the method “mtime”. The result for some files is correct but unfortunately for many I get always that...
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