Recent questions tagged Julia

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1.4k views

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julia - Convert a column from string to Int in Dataframe

Imagine I have a dataframe df=DataFrame(A=rand(5),B=["8", "9", "4", "3", "12"]) What I ... //stackoverflow.com/questions/65838873/convert-a-column-from-string-to-int-in-dataframe...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

julia - How can i calculate the difference between two histograms?

I have two histograms (both with the same bin size) and i want to compare each bin. I already ... questions/65866191/how-can-i-calculate-the-difference-between-two-histograms...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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930 views

1 answer

julia jump: declare array with variable upper and lower limit

I am trying to solve a sensitivity analysis using Julia (JUMP). I am stuck at the following problem: I am ... /65874081/julia-jump-declare-array-with-variable-upper-and-lower-limit...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

julia - Capturing emoticons

Does anyone know if there is a package in Julia that allows capturing a wide range of emoticons/emojis ... from:https://stackoverflow.com/questions/65915931/capturing-emoticons...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

julia - How to Edit a Row in JuliaDB?

Is there a way to edit a field in JuliaDB? I want to modify column y where column x == 4. using JuliaDB ... ://stackoverflow.com/questions/65545926/how-to-edit-a-row-in-juliadb...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

julia - Matplotlib not found when trying to run code in Linux cluster

I am running a Julia script while ssh'ed into a Linux cluster. The code loads matplotlib as the following: import ... /matplotlib-not-found-when-trying-to-run-code-in-linux-cluster...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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961 views

1 answer

julia - Cannot figure out simple use of Cumulants.jl

I cannot for the life of me figure out how to use Cumulants.jl to get moments or cumulants from some data. ... .com/questions/65602034/cannot-figure-out-simple-use-of-cumulants-jl...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

julia - Joining Multiple Data Frames

I am wondering if there is a way in Julia DataFrames to join multiple data frames in one go, using ... :https://stackoverflow.com/questions/65649732/joining-multiple-data-frames...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

julia create an empty dataframe and append rows to it

I am trying out the Julia DataFrames module. I am interested in it so I can use it to plot simple simulations ... /26201005/julia-create-an-empty-dataframe-and-append-rows-to-it...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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877 views

1 answer

julia - Joining Multiple Data Frames

I am wondering if there is a way in Julia DataFrames to join multiple data frames in one go, using ... :https://stackoverflow.com/questions/65649732/joining-multiple-data-frames...

asked Apr 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

julia - 朱莉娅（Julia）：如何有效计算Vector {Union {T，Missing}}中的遗失数量(Julia: How to count efficiently the number of missings in a `Vector{Union{T, Missing}}`)

Consider (考虑) x = rand([missing, rand(Int, 100)...], 1_000_000) which yields typeof(x) = Array{Union{Missing, Int64},1} . (产 ... 算x的遗失次数最有效的方法是什么？) ask by xiaodai translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

julia - 朱莉娅（Julia）：如何有效计算Vector {Union {T，Missing}}中的遗失数量(Julia: How to count efficiently the number of missings in a `Vector{Union{T, Missing}}`)

Consider (考虑) x = rand([missing, rand(Int, 100)...], 1_000_000) which yields typeof(x) = Array{Union{Missing, Int64},1} . (产 ... 算x的遗失次数最有效的方法是什么？) ask by xiaodai translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

julia - 朱莉娅gui显示图像gtk.jl(Julia gui display an image gtk.jl)

How can I display an image using Gtk with Julia? (如何使用Gtk和Julia显示图像？) In my GUI, I have a button set up so when I ... Gtk.jl Docs中找到任何有关它的文档 ) ask by Mahmut215 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.3k views

1 answer

julia - 朱莉娅gui显示图像gtk.jl(Julia gui display an image gtk.jl)

How can I display an image using Gtk with Julia? (如何使用Gtk和Julia显示图像？) In my GUI, I have a button set up so when I ... Gtk.jl Docs中找到任何有关它的文档 ) ask by Mahmut215 translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

julia - 我可以在julia中定义一个指针吗？(Can I define a pointer in julia?)

How do I define a pointer to a variable or list element in Julia? (如何在Julia中定义指向变量或列表元素的指针？)I have tried reading some ... ，但对于在Julia中使用指针感到非常困惑 ) ask by bitWise translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

julia - 我可以在julia中定义一个指针吗？(Can I define a pointer in julia?)

How do I define a pointer to a variable or list element in Julia? (如何在Julia中定义指向变量或列表元素的指针？)I have tried reading some ... ，但对于在Julia中使用指针感到非常困惑 ) ask by bitWise translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

julia - 在Catalina机器上安装Julia 0.64(Installing Julia 0.64 on Catalina Machine)

Done this multiple times before on Windows machines with no issues. (在Windows机器上完成此操作之前没有问题 )But after installing Julia Pro ... 天时间试图解决这个问题！) ask by rendermonster translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

julia - 我可以在julia中定义一个指针吗？(Can I define a pointer in julia?)

How do I define a pointer to a variable or list element in Julia? (如何在Julia中定义指向变量或列表元素的指针？)I have tried reading some ... ，但对于在Julia中使用指针感到非常困惑 ) ask by bitWise translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

julia - 朱莉娅（Julia）：如何有效计算Vector {Union {T，Missing}}中的遗失数量(Julia: How to count efficiently the number of missings in a `Vector{Union{T, Missing}}`)

Consider (考虑) x = rand([missing, rand(Int, 100)...], 1_000_000) which yields typeof(x) = Array{Union{Missing, Int64},1} . (产 ... 算x的遗失次数最有效的方法是什么？) ask by xiaodai translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

julia - 在Catalina机器上安装Julia 0.64(Installing Julia 0.64 on Catalina Machine)

Done this multiple times before on Windows machines with no issues. (在Windows机器上完成此操作之前没有问题 )But after installing Julia Pro ... 天时间试图解决这个问题！) ask by rendermonster translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

julia - 在Catalina机器上安装Julia 0.64(Installing Julia 0.64 on Catalina Machine)

Done this multiple times before on Windows machines with no issues. (在Windows机器上完成此操作之前没有问题 )But after installing Julia Pro ... 天时间试图解决这个问题！) ask by rendermonster translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.3k views

1 answer

julia - Julia MethodError：没有方法匹配（:: Dense {typeof（logistic），CuArray {Float32,2，Nothing}，CuArray {Float32,1，Nothing}}）（:: Float32）(Julia MethodError: no method matching (::Dense{typeof(logistic),CuArray{Float32,2,Nothing},CuArray{Float32,1,Nothing}})(::Float32))

I have the following training data in CuArrays. (我在CuArrays中有以下训练数据 ) X: 300 8544 CuArray{Float32,2,Nothing} y: 5 8544 ... this? (我该如何解决？) ask by D.Danier translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.3k views

1 answer

julia - Julia MethodError：没有方法匹配（:: Dense {typeof（logistic），CuArray {Float32,2，Nothing}，CuArray {Float32,1，Nothing}}）（:: Float32）(Julia MethodError: no method matching (::Dense{typeof(logistic),CuArray{Float32,2,Nothing},CuArray{Float32,1,Nothing}})(::Float32))

I have the following training data in CuArrays. (我在CuArrays中有以下训练数据 ) X: 300 8544 CuArray{Float32,2,Nothing} y: 5 8544 ... this? (我该如何解决？) ask by D.Danier translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

976 views

1 answer

julia - Optim: InexactError: Int64(0.01) when using IPNewton

I have this code to optimise a function using the IPNewton method (error.jl): import Optim """ Generate a matrix of ... But why is it attempting to convert it to an integer??...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

julia - Problem with updating R code inserts in Pluto.jl

I have some amount of code in R left over from my past research. It's not very fast, but it works. Julia generously ... code, Pluto will give an error. How to solve this problem?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

979 views

1 answer

julia - Cannot figure out simple use of Cumulants.jl

I cannot for the life of me figure out how to use Cumulants.jl to get moments or cumulants from some data. I find the ... out how to get the first m cumulants as a vector easily....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

julia - Plot a function of time

I want to plot this function r1(ω,t) for a certain value of ω, parameterized by t (time) (in the x-y plane) ... for Julia things online, I really suck at it at the moment. Thanks...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

julia - Plot a function of time

I want to plot this function r1(ω,t) for a certain value of ω, parameterized by t (time) (in the x-y plane) ... for Julia things online, I really suck at it at the moment. Thanks...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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