Re: [julia-users] Dataframe without column and row names ?

In fact I don't know how to make the nice border but I noticed dataframe does it ... I only need the nice border for the matrix, but I don't know how to do it ? Maybe I should ask how to make a nice border in a matrix ? Regards Henri Le 15/10/2016 à 22:32, Milan Bouchet-Valat a écrit : Le

Re: [julia-users] Re: eachline() work with pmap() is slow

codes link is the same link in my first reply. On Monday, October 17, 2016 at 12:47:15 AM UTC+8, Jeremy McNees wrote: > > Care to share the code you used? > > On Sun, Oct 16, 2016 at 9:24 AM wrote: > >>

Re: [julia-users] Re: ImageView very slow

Hmm, I fixed this on the images-next branch but forgot to fix it on master. Will be fixed in https://github.com/timholy/Images.jl/pull/564. If you're just getting started with Julia & Images, you might want to consider using the upcoming version of Images. See

Re: [julia-users] How to determine which functions to overload, or, who is at the bottom of the function chain?

This was a very helpful answer. Thank you very much for responding. Cheers, Colin On 16 October 2016 at 20:23, Milan Bouchet-Valat wrote: > Le samedi 15 octobre 2016 à 20:36 -0700, colintbow...@gmail.com a > écrit : > > Hi all, > > > > Twice now I've thought I had

[julia-users] Re: What is really "big data" for Julia (or otherwise), 1D or multi-dimensional?

One fact about big data is it keeps getting bigger. On Friday, October 14, 2016 at 1:00:35 PM UTC-4, Páll Haraldsson wrote: > > On Thursday, October 13, 2016 at 7:49:51 PM UTC, cdm wrote: >> >> from CloudArray.jl: >> >> "If you are dealing with big data, i.e., your RAM memory is not enough >> to

[julia-users] Re: ImageView very slow

On Sunday, October 16, 2016 at 4:45:00 PM UTC, Paul B. wrote: > into some issues with deprecated functionality > I think they can make slower, not sure if by this much. I see: "fix julia 0.5 deprecations 19 days ago" Maybe if you update the package this will be ok?

[julia-users] Re: matrix multiplication in Matlab is much faster

thanks @chris ... thanks a lot ... On Sunday, October 16, 2016 at 8:51:56 PM UTC+3:30, Chris Rackauckas wrote: > > Take a look at the performance tips > . The > first time you run it, the function will compile. Then the compiled

Re: [julia-users] Some questions on array comprehensions; e.g. disabling bounds checking possible? And correct way for non-1-based

On Sunday, October 16, 2016 at 4:54:45 PM UTC, Yichao Yu wrote: > > > > On Sun, Oct 16, 2016 at 12:01 PM, Páll Haraldsson > wrote: > >> >> I was prototyping: >> >> julia> a=[1,2,3,1,2] >> >> julia> b=[a[i]> 4-element Array{Bool,1}: >>

[julia-users] Re: quadgk with 2 arguments

quadgk is fine for vector-valued functions (and in fact any integrand type supporting +, -, *real, and norm, and can also integrate over infinite intervals and contours in the complex plane. But for multidimensional integrals you should use Cuba.jl or Cubature.jl or GSL.jl or similar.

[julia-users] Re: eachline() work with pmap() is slow

On Sunday, October 16, 2016 at 5:57:49 PM UTC, Páll Haraldsson wrote: > > > > On Saturday, October 15, 2016 at 2:54:53 AM UTC, love...@gmail.com wrote: >> >> @Páll, do you mean that pmap will first do a ``collect`` operation, >> > > yes and no.. > Should have said here, just no. I meant, yes,

[julia-users] Re: eachline() work with pmap() is slow

On Saturday, October 15, 2016 at 2:54:53 AM UTC, love...@gmail.com wrote: > > I have change the code to parallel on files rather than lines. codes are > available here > if > anyone have interests. > However, the speed is not

[julia-users] Re: Status of Plots.jl?

using Plots #Pkg.add("GR") gr() # Change the backend plot(rand(4,4)) There's a bug with the plot pane where you might need to hit it twice. If that's not working, then it's not setup correctly. On Sunday, October 16, 2016 at 9:45:07 AM UTC-7, missp...@gmail.com wrote: > > Hi folks, > > I don't

[julia-users] Re: matrix multiplication in Matlab is much faster

Take a look at the performance tips . The first time you run it, the function will compile. Then the compiled function is cached. On my computer I did: a = rand(1000,1000) y=similar(a) @time a*a @time a*a @time

[julia-users] gathering advice on types

Do you have words of wisdom, style, technique, efficiency or pragmatism regarding types in any of their forms (concrete, abstract, aliased, bits and parameters). We are gathering advice on types on gitter at JuliaPraxis .

[julia-users] Julia(Box) on GPU cloud

Hi guys, Does anybody have experience with getting Julia, with JuliaBox in particular, running on the GPU cloud? How can it be done? There seems to be no documented way. What is the best host?

Re: [julia-users] Some questions on array comprehensions; e.g. disabling bounds checking possible? And correct way for non-1-based

On Sun, Oct 16, 2016 at 12:01 PM, Páll Haraldsson wrote: > > I was prototyping: > > julia> a=[1,2,3,1,2] > > julia> b=[a[i] 4-element Array{Bool,1}: > true > true > false > true > > > In the beginning when trying stuff out I

Re: [julia-users] Re: eachline() work with pmap() is slow

Care to share the code you used? On Sun, Oct 16, 2016 at 9:24 AM wrote: > Problem solved by hand writing an implementation of ``pmap`` & codes > updated :) > >

[julia-users] Re: Status of Plots.jl?

Hi folks, I don't seem to be able to have the display of a graph in GR. I'm calling the instructions using Atom. could someone post a Hello World example? thanks, On Thursday, March 10, 2016 at 5:11:57 AM UTC-8, Daniel Carrera wrote: > > Hello, > > Does anyone know the status of Plots.jl?

[julia-users] matrix multiplication in Matlab is much faster

i have run the same matrix multiplication in both matlab and julia but matlab in much faster that julia, i have used both A_mul_B! and *() functions my codes are : in matlab : tic a = rand(1000,1000) a*a toc the output is : Elapsed time is 0.193979 seconds in Julia : a = rand(1000,1000)

[julia-users] ImageView very slow

Hello, all. Starting out with Julia. I need to display some pseudo-color images so I'm playing around with the ImageView package. It seems to be running very slowly. Displaying one of the images from TestImages can take nearly a minute: img = testimage( "cameraman" ) Gray Images.Image with:

Re: [julia-users] How to determine which functions to overload, or, who is at the bottom of the function chain?

Le samedi 15 octobre 2016 à 20:36 -0700, colintbow...@gmail.com a écrit : > Hi all, > > Twice now I've thought I had overloaded the appropriate functions for > a new type, only to observe apparent inconsistencies in the way the > new type behaves. Of course, there were no inconsistencies.

Re: [julia-users] Dataframe without column and row names ?

Le vendredi 14 octobre 2016 à 19:59 -0700, Henri Girard a écrit : > Hi, > Is it possible to have a table with only the result ? > I don't want row /column names. So why do you create a data frame? Isn't a Matrix enough? Regards > using DataFrames > function iain_magic(n::Int) >     M =

[julia-users] Some questions on array comprehensions; e.g. disabling bounds checking possible? And correct way for non-1-based

I was prototyping: julia> a=[1,2,3,1,2] julia> b=[a[i]

[julia-users] How to install JuMP without SSL errors?

Ref: https://github.com/JuliaOpt/JuMP.jl/issues/864 I can't seem to add package JuMP. Other packages seem to be added fine. How can I fix this? OS: Fedora 24 julia> versioninfo() Julia Version 0.6.0-dev.986 Commit 6c9f5af (2016-10-16 05:19 UTC) Platform Info: OS: Linux

[julia-users] Re: eachline() work with pmap() is slow

Problem solved by hand writing an implementation of ``pmap`` & codes updated :)

[julia-users] Re: Parallel file access

that because SQLLite isn't a multi-user DB server but a single user embedded (desktop) db. Use the right tool for the job. On Saturday, October 15, 2016 at 7:02:58 PM UTC+2, Ralph Smith wrote: > > How are the processes supposed to interact with the database? Without > extra synchronization