[julia-users] Gadlfy - Error with colors

Hi, I got an error when using the parameter Theme with Gadfly, so I tried using an example from http://gadflyjl.org/themes.html#examples (see below). When I run the example from the website below, I get an error saying 'convert' has no method matching

[julia-users] Re: higher rank sparse matrices

I believe that Tony is suggesting manually applying the sparse operator rather than explicitly constructing it and then applying it. This is a common (and significant) performance optimization when a sparse operator is only used once or twice, as the construction of the sparse matrix is often

[julia-users] NYC Intro Julia Meetup

In case you know anyone who might want a gentle intro to Julia, I'll be giving one at NYU next week: http://www.meetup.com/julia-nyc/events/225289625/ Stefan

[julia-users] Re: Performance between R, Julia and Cpp

Julia is only at version 0.4 (well, soon). It's too soon to expect miracles. :-). however, I want to restate an old suggestion. a language should have as few surprises as possible. this applies not only to features, but also to performance.

Re: [julia-users] Re: Anti-Grain Geometry and other alternatives

I've just seen so many core dumps that happen within Cairo over my career. They may not be Cairo's fault, but I've just gotten it in my head that it can be a little unstable at times. YMMV On Wed, Sep 16, 2015 at 1:21 AM, Andreas Lobinger wrote: > Hello colleague, > > On

Re: [julia-users] Re: IDE for Julia

Hi everyone, I just finished putting together a basic mockup of what a Julia IDE might look like. I'm calling it JuliaBox: Source: https://github.com/dcarrera/JuliaBox Screenshot: https://github.com/dcarrera/JuliaBox/blob/master/screenshots/screenshot-01.png This is literally just a shell and

[julia-users] Re: Regression on a singular matrix

On Tuesday, September 15, 2015 at 10:22:47 AM UTC-4, Cedric St-Jean wrote: > > In the discussion of issue 9804 > , > the general consensus seemed to be: > > > Right. "rref" has no use in real numerical coding, but every use

[julia-users] Re: Anti-Grain Geometry and other alternatives

Hello colleague, On Tuesday, September 15, 2015 at 6:01:37 PM UTC+2, Tom Breloff wrote: > > Does anyone in the community have experience with Anti-Grain Geometry as > an alternative to Cairo? > > http://www.antigrain.com/ > > I know very little about it, but it could possibly be faster and

[julia-users] Re: Juno + Julia 0.4

I've been using Atom + julia-client and Atom + hydrogen with 0.4 while waiting for Juno's 0.4 fixes to be there. It's not quite useable as-of-yet because of issues with output. (Output can overlap code making it unreadable.) It's also missing the clickable error messages, that jump to the

Re: [julia-users] [ANN] Plots.jl, a plotting interface

On Monday, September 14, 2015 at 4:50:29 PM UTC+2, Daniel Carrera wrote: > > Hi Randy, > > To be clear, interactivity (as I understand it) is not something I want or > would use. I need to change the plot settings programmatically so I can > reproduce the exact same plot later if I need to. >

Re: [julia-users] Gadlfy - Error with colors

What does Pkg.status() say? You have an odd mix of using the old "Color" package and the new "Colors" package. --Tim On Tuesday, September 15, 2015 04:12:13 PM Serge Santos wrote: > Hi, > > I got an error when using the parameter Theme with Gadfly, so I tried using > an example from

Re: [julia-users] Re: IDE for Julia

Isn't JuliaBox a registered trade mark? On Wednesday, September 16, 2015 at 1:50:29 AM UTC+2, Daniel Carrera wrote: > > Hi everyone, > > I just finished putting together a basic mockup of what a Julia IDE might > look like. I'm calling it JuliaBox: > > Source:

Re: [julia-users] Re: IDE for Julia

Ooops. I didn't mean to do that. I was trying to pick a generic non-committal name. Ok, I have temporarily renamed it "Julia IDE" which is a bit pretentious for a 200-line script that doesn't do anything, but the name does not seem to be in use: https://github.com/dcarrera/JuliaIDE If someone

Re: [julia-users] Wasting memory on transposing

Thanks for the information. I just read up on the planed changes for 0.5, but I was not aware of this yesterday - so much to learn and keep yourself updated on! With regards to (A'.*B)[2:end, 2:end] I didn't really think about using this trick before, but I guess you meant (A[:,1].*B)[2:end,

RE: [julia-users] Re: IDE for Julia

Whether it is registered or not, please use a different name, given that this https://juliabox.org/ exists and is very much supported/run by the official julia core team. No need to cause naming confusion here. Cheers, David From: julia-users@googlegroups.com

[julia-users] Re: Pkg.checkout("PkgName") slow on Windows

Thanks for pointing me to the issue, good to know it's being worked. On Tuesday, September 15, 2015 at 5:39:58 PM UTC-4, Steven G. Johnson wrote: > > This is a known problem. Basically, Pkg is slow on Windows because it > launches lots of little git processes, and launching processes is slow on

[julia-users] Re: Anti-Grain Geometry and other alternatives

@Tim Holy, the wait has been long enough ;) By the way, what graphic card do you have? It's quite possible that it works on windows without a new machine. - given that this is an acceptable temporary solution for you :) Am Dienstag, 15. September 2015 18:01:37 UTC+2 schrieb Tom Breloff: > > Does

[julia-users] return 2D (or nD) array from function

Hi, I am trying to migrate from R to julia. I am trying to wrap my head around: In R, there are the apply functions - when used with, e.g. a function that returns a 1d array of constant length, they will return a 2d array with the results. In julia, using map() will return a Array{Array{T, 1},

[julia-users] Re: higher rank sparse matrices

Instead of constructing a sparse matrix in the inner loop it would be more efficient to write an in place stencil kernel function to perform the equivalent operation.

[julia-users] Re: libcurl in Plotly

On Monday, 14 September 2015 00:07:08 UTC+1, Tony Kelman wrote: > > What Linux distribution are you using? You probably need to install > libcurl-dev > That was exactly the solution. Many thanks.

Re: [julia-users] Wasting memory on transposing

Both the slices and the transpose create temporaries; this will change in 0.5 but for now it's the way things work. You could do something like (A'.*B)[2:end,2:end] to avoid some temporaries. But if you want to eliminate all temporaries, writing out the loops is the best way at the moment. On

Re: [julia-users] return 2D (or nD) array from function

It's also perfectly normal/valid to do the loop explicitly. Just use Array(T, r, c) to allocate, or zeros(T, r, c) or fill(val,r,c) to allocate and initialize. On Tue, Sep 15, 2015 at 2:38 PM, Stefan Karpinski wrote: > You can use array comprehensions, e.g.: > > julia>

Re: [julia-users] Wasting memory on transposing

Patrick you're right about the C indices... you were clear. As for the alternate syntax, I didn't actually realize that was valid... thanks. On Tue, Sep 15, 2015 at 2:30 PM, Stefan Karpinski wrote: > Both the slices and the transpose create temporaries; this will change

[julia-users] Re: Anti-Grain Geometry and other alternatives

I've looked at most techniques and settled for distancefield based techniques for OpenGL. I'm in the middle of putting everything together but right now I've just finished support for different markers, styles (glow || outlined || filled) and full unicode rendering. You can place and rotate

Re: [julia-users] Anti-Grain Geometry and other alternatives

Daniel Jones has played a bit with Skia: https://github.com/dcjones/Skia.jl/issues/1 Also C++, however. Andreas Lobinger seems to have been playing with accelerated Cario drawing (https://github.com/JuliaLang/Gtk.jl/pull/170#issuecomment-139213820), it would be cool to hear more details about

Re: [julia-users] return 2D (or nD) array from function

You can use array comprehensions, e.g.: julia> f(x,y) = 2x + 3y - 1 f (generic function with 1 method) julia> [f(x,y) for x=1:7, y=1:5] 7x5 Array{Int64,2}: 4 7 10 13 16 6 9 12 15 18 8 11 14 17 20 10 13 16 19 22 12 15 18 21 24 14 17 20 23 26 16 19 22 25 28

Re: [julia-users] return 2D (or nD) array from function

Thanks a lot, both of you. I did look into array comprehensions, but as far as I can see, these are designed to create the outer product (or other function that returns a scalar) of the combinations of elements from two Arrays - not combining the results of a function that returns 1d arrays? If

[julia-users] Julia Version 0.4.0-rc1: rref not defined

Hello, I get the next error julia> rref([1 2 0 3 ; 2 4 0 7]) ERROR: UndefVarError: rref not defined But it should be in the standard library as I understand. How to fix this? Thanks, Alex

[julia-users] Re: Package update which broke my Python link

Thanks guys. The update() and build() calls didn't fix it. But a checkout() of PyCall followed by a new call to build() worked it out. I don't actually use IJulia. I installed it so that I could demonstrate it to colleagues. Guess I'll leave it uninstalled for now :) Dave. On Monday, 14

Re: [julia-users] constrain arguments in function

Related, in Julia0.4 there is also enum: help?> @enum .. @enum EnumName EnumValue1[=x] EnumValue2[=y] Create an :obj:`Enum` type with name ``EnumName`` and enum member values of ``EnumValue1`` and ``EnumValue2`` with optional assigned values of ``x`` and ``y``, respectively. ``EnumName``

Re: [julia-users] constrain arguments in function

No, Julia only dispatches on types not on values. The latter sometimes goes under the name of pattern matching. There is a package for that: https://github.com/toivoh/PatternDispatch.jl On Tue, 2015-09-15 at 10:15, Michael Borregaard wrote: > Is there a way in julia to

Re: [julia-users] constrain arguments in function

Shouldn't it be function foo(x, method::SolverMethod) ... end foo(x, Kendall) # solve using Kendall solver ? if isa(method, Spearman) # do spearman specific stuff elseif isa(method, Pearson) # do pearson specific stuff elseif isa(method, Kendall) # do kendall specific stuff else # handle

[julia-users] constrain arguments in function

Is there a way in julia to restrict the values of arguments to a function, eg to the contents of a certain vector? So, e.g. method in the function function foo(x, method::String) ... would be constrained to either "spearman", "pearson" or "kendall"? Thanks

[julia-users] Re: [Concurrency] Julia with/vs. Python 3.5, Go, Erlang/Elixir

It would be more productive, if you could describe what exactly you expect from a good concurrent/parallel programming language. Julia already has built-in coroutines (Tasks) and multiprocessing, and will get shared-memory parallelism (multithreading) in observable future. The only thing in

[julia-users] Re: Pkg.checkout("PkgName") slow on Windows

I should add that I see this same kind of behavior after I run Pkg.test("PkgName"): julia reports that the tests pass, then it hangs for a while before telling me "No packages to install, update, or remove". On Tuesday, September 15, 2015 at 10:56:13 AM UTC-4, Chris wrote: > > When I try to

[julia-users] Re: ANN: Immerse package, and more videos on interactive plotting

Since yesterday I've added a couple of new features: - A "Save As" button to the toolbar so you can easily export your figures as SVG, PNG, PDF, or PS. (This just uses the Gadfly/Compose writers.) - The ability to "tweak" a plot after its initial creation. Here's the setup: julia> using

[julia-users] Re: higher rank sparse matrices

Could you post a link to the part of the documentation that describes how to do that? On Tuesday, September 15, 2015 at 3:53:11 AM UTC-4, Tony Kelman wrote: > > Instead of constructing a sparse matrix in the inner loop it would be more > efficient to write an in place stencil kernel function to

[julia-users] Anti-Grain Geometry and other alternatives

Does anyone in the community have experience with Anti-Grain Geometry as an alternative to Cairo? http://www.antigrain.com/ I know very little about it, but it could possibly be faster and more stable than Cairo for 2D graphics, with a lighter dependency footprint. It is a C++ package, so

Re: [julia-users] `OverflowError` when defining a large-ish matrix

Not sure if this will fix it, but you seem to be delimiting the rows of the matrix with carriage-returns; try using a semicolon. --Tim On Tuesday, September 15, 2015 12:59:07 AM Tomas Lycken wrote: > I’ve been getting test failures on Contour.jl > for a

Re: [julia-users] `OverflowError` when defining a large-ish matrix

Best to file a bug report, then. It would be helpful if you can trim the size of the data array down first, and possibly determine whether there's a size- threshold for the effect. Otherwise it will be hard to debug. --Tim On Tuesday, September 15, 2015 03:31:01 AM Tomas Lycken wrote: > Nope,

Re: [julia-users] Re: IDE for Julia

GtkSourceView seems nice but I never managed to get it work on windows. The wrapper might be a bit outdated too. On Monday, September 14, 2015 at 5:14:53 PM UTC+2, Daniel Carrera wrote: > > Ooops, stupid question. I see that the screenshot actually shows the > source code. You are using Gtk

[julia-users] Using parallel reduce inside module

For now I have following code which does the job outside module: module MyModule function parallel_inside(a::Array{Float64,1}) s = @parallel (+) for i in 1:100 sum(a) end end end function notparallel(a::Array{Float64,1}) s = 0 for i in 1:100 s += sum(a)

Re: [julia-users] Re: ANN: Immerse package, and more videos on interactive plotting

Thanks, that's a big help. --Tim On Tuesday, September 15, 2015 03:33:02 AM Viral Shah wrote: > I have created a playlist on the JuliaLanguage account on Youtube with > these videos. > > https://www.youtube.com/user/JuliaLanguage/ > > -viral > > On Monday, September 14, 2015 at 8:45:04 PM

[julia-users] Re: [Concurrency] Julia with/vs. Python 3.5, Go, Erlang/Elixir

On Tuesday, September 15, 2015 at 9:56:12 AM UTC, Andrei Zh wrote: > > It would be more productive, if you could describe what exactly you expect > from a good concurrent/parallel programming language. Julia already has > built-in coroutines (Tasks) and multiprocessing, and will get

[julia-users] Re: [Concurrency] Julia with/vs. Python 3.5, Go, Erlang/Elixir

This post goes ALL over the place. Go, threads, Python, @ operator, PyCall, Haskell, Erlang, immutable strings, mutating function convention with!, etc etc. You keep posting these open ended posts that to be honest look a bit like rambling. Before you start writing, think about what your

Re: [julia-users] Re: Accessing Windows 64 dll's from within Julia

I've managed to get it working without msys.dll now. One unfortunately problem is that Flint relies on pthreads and gcc introduces a dependency on libwin-pthreads1.dll, so I have to distribute this dll also with my project. I've already looked online and there seems to be no way to get around

[julia-users] Juno + Julia 0.4

I just built Julia 0.4 and downloaded Juno (bundle) from http://junolab.org/docs/install.html However, when I double clicked Juno, I found it is running on v0.3.10. Does it mean that Juno contains a separated build of Julia. What should I do to connect it to my local Julia build?

Re: [julia-users] constrain arguments in function

Le mardi 15 septembre 2015 à 03:04 -0700, Michael Borregaard a écrit : > Ahh, I remember enum from the good old C++ days. That looks useful, > but in reality I guess still not more user friendly than just taking > a string defining the method, and then writing in the documentation > that it can

[julia-users] Re: ANN: Immerse package, and more videos on interactive plotting

I have created a playlist on the JuliaLanguage account on Youtube with these videos. https://www.youtube.com/user/JuliaLanguage/ -viral On Monday, September 14, 2015 at 8:45:04 PM UTC+5:30, Tim Holy wrote: > > I'm pleased to announce the availability of the Immerse package: >

Re: [julia-users] Re: Multi-dimensional Arrays

`next` requires a second argument, the `state` variable. Your code doesn't pass a second argument, which is why you're getting the error. --Tim On Tuesday, September 15, 2015 08:18:09 AM Leonardo wrote: > Sorry, > but now I have some doubt relative to concatenation for my redefined Array. > >

Re: [julia-users] `OverflowError` when defining a large-ish matrix

Done. https://github.com/JuliaLang/julia/issues/13137 // T On Tuesday, September 15, 2015 at 12:34:27 PM UTC+2, Tim Holy wrote: > > Best to file a bug report, then. It would be helpful if you can trim the > size > of the data array down first, and possibly determine whether there's a > size-

[julia-users] Re: Memory leak in function

On Friday, September 4, 2015 at 2:22:58 PM UTC, Arch Call wrote: > > Sorry, I meant allocation not leak. > Am I missing something, why is it important? The garbage collection (GC) will take care of the allocations, and if you are worried about, not the allocation, but the indirect time it takes

[julia-users] Re: Juno + Julia 0.4

Yes, it does (that's the point of having the bundle(!) available on the website). To connect to a different instance of Julia, follow the steps here: http://junolab.org/docs/install-manual.html However, I don't think JunoLT is working with 0.4 (at least it wasn't when I last checked two weeks

Re: [julia-users] Re: Juno + Julia 0.4

Actually, I've spent some time over the last couple days updating Jewel etc. to work with Julia v0.4 as well as 0.3. The Juno/LT bundles will probably be around for a little while longer – at least until Juno/Atom reaches feature parity, I think. If you're using Juno/LT with 0.4 currently I'd

[julia-users] Re: [julia-dev] Re: Julia v0.4.0-rc1 released

All 23,000 lines of code in our Nemo package passes its extensive test suite with Julia-0.4-rc1 on Ubuntu 14.04 and Windows 10 (64 bit). Thanks all for the amazing hard work! Bill. On 11 September 2015 at 06:18, Nitin Arora wrote: > Congrats all ! > > > On Thursday,

[julia-users] Re: ANN: Immerse package, and more videos on interactive plotting

Super exciting work! And I must say: great with a video along with the ANN. (Good idea with the playlist as well, Viral) On Tuesday, September 15, 2015 at 11:29:37 AM UTC-4, Tim Holy wrote: > > Since yesterday I've added a couple of new features: > - A "Save As" button to the toolbar so you can

Re: [julia-users] Re: Anti-Grain Geometry and other alternatives

Simon: This all makes me really excited to try out. Do you have a bare-minimum tutorial to do the basics in your package? How should I learn it? On Tue, Sep 15, 2015 at 3:08 PM, Simon Danisch wrote: > I've looked at most techniques and settled for distancefield based >

Re: [julia-users] Re: Anti-Grain Geometry and other alternatives

I'm already shopping for an OpenGL-capable laptop, just so I can finally run your code :-). --Tim On Tuesday, September 15, 2015 12:08:10 PM Simon Danisch wrote: > I've looked at most techniques and settled for distancefield based > techniques for OpenGL. > I'm in the middle of putting

[julia-users] Re: Pkg.checkout("PkgName") slow on Windows

This is a known problem. Basically, Pkg is slow on Windows because it launches lots of little git processes, and launching processes is slow on Windows. Work is ongoing to fix this by calling the libgit library rather than launching git processes: https://github.com/JuliaLang/julia/pull/11196

[julia-users] Re: Anti-Grain Geometry and other alternatives

Good question! Best would be to wait a little more. I plan to release a tutorial video, explaining all the new features. Don't expect something too polished, though. It's good to have the primitives working, but turning it into a well-rounded package will still require quite a bit of time. I

Re: [julia-users] Re: Anti-Grain Geometry and other alternatives

Solid/fast basics are what's important. I'll keep an eye out for your videos. On Tue, Sep 15, 2015 at 4:40 PM, Simon Danisch wrote: > Good question! Best would be to wait a little more. I plan to release a > tutorial video, explaining all the new features. > Don't expect

[julia-users] Re: [ANN] PairedListMatrices.jl

Thanks! I'm going to change the package a little in the following days. I renamed it to "Pairwise...". I will be back soon with news. Thanks! El domingo, 13 de septiembre de 2015, 13:29:38 (UTC-3), David Smith escribió: > > Thank you, this looks very nice. > > On Sunday, September 13, 2015 at

[julia-users] Regression on a singular matrix

In the discussion of issue 9804 , the general consensus seemed to be: > Right. "rref" has no use in real numerical coding, but every use in pedagogy. I had a linear regression yield a PosDefError (the X matrix contains

Re: [julia-users] Re: IDE for Julia

Gtk, the code isn't published but it's very similar to Julietta: https://github.com/tknopp/Julietta.jl

[julia-users] Re: API deployments on JuliaBox

Hello, can you give me a small example on how to create and use this new feature? Let-me see if I got the idea: 1: I can create a new API with some commands 2: I can share it with other users Right? I created a "list_it" API with a "ls" command. How Can I run it inside my Juliabox?

Re: [julia-users] `OverflowError` when defining a large-ish matrix

Nope, that unfortunately doesn't help - I get the same error. // T On Tuesday, September 15, 2015 at 12:28:49 PM UTC+2, Tim Holy wrote: > > Not sure if this will fix it, but you seem to be delimiting the rows of > the > matrix with carriage-returns; try using a semicolon. > > --Tim > > On

[julia-users] Re: API deployments on JuliaBox

Hi, yes, that's right. The APIs will let you share useful functionalities as REST APIs to other users. The API published with name "list_it" can be accessed at https://api.juliabox.org/list_it/... The "..." above refer to the exact method being called and the parameters it expects. >From

[julia-users] Re: Julia Version 0.4.0-rc1: rref not defined

https://github.com/JuliaLang/julia/pull/9804 On Tuesday, September 15, 2015 at 10:21:58 AM UTC+2, Alex wrote: > > Hello, > > I get the next error > > julia> rref([1 2 0 3 ; 2 4 0 7]) > ERROR: UndefVarError: rref not defined > > > But it should be in the standard library as I understand. > How to

Re: [julia-users] constrain arguments in function

Thanks, I will look into that then. So essentially if I build a module I export the enums used for all functions into the global workspace? On Tue, Sep 15, 2015 at 2:22 PM, Milan Bouchet-Valat wrote: > Le mardi 15 septembre 2015 à 03:04 -0700, Michael Borregaard a écrit : > >

[julia-users] Re: Juno + Julia 0.4

The julia-client package for Atom is from the Juno project. It requires Julia 0.4 so I haven't tried it yet. But there is support for syntax highlighting from the language-julia package. I've started using Atom, it's quite nice. But there is no project support yet, which really sucks from my

[julia-users] Re: Juno + Julia 0.4

The "node.js" is actually installed in the system, but it is only recognized as `nodejs` as command. So when building, the `script/build` can't find "node". On Tuesday, September 15, 2015 at 2:59:56 PM UTC+2, Sisyphuss wrote: > > I think I am not able to install Atom, because I am not the root

[julia-users] Re: Juno + Julia 0.4

Scott, Yes, I did. It would be perfect if only it supported maintaining a list of open files on a per project basis. I have two, highly related, (scientific) projects in the same folder and unfortunately project-manager assumes that you keep your projects in separate folders. I had a highly

[julia-users] Re: Juno + Julia 0.4

Thanks, both. By the way, is there any relation between Juno and Atom? What's the trend? On Tuesday, September 15, 2015 at 1:59:55 PM UTC+2, Nils Gudat wrote: > > Yes, it does (that's the point of having the bundle(!) available on the > website). > To connect to a different instance of Julia,

Re: [julia-users] Re: IDE for Julia

Crap... It looks like I accidentally hit "send" before my email was finished. Anyway, here it goes again: Last night I started experimenting with Gtk, and started making a sketch of what a Julia IDE might look like. In the process I am writing down a list of things that are probably needed

Re: [julia-users] Re: Juno + Julia 0.4

I think I have downloaded a Juno version without embedded Julia a couple of months ago. When I run it, it pops: Couldn't connect to Julia WARNING: `require` is deprecated, use `using` or `import` instead in depwarn at deprecated.jl:73 in require at deprecated.jl:663 in include at

[julia-users] Re: Juno + Julia 0.4

I think I am not able to install Atom, because I am not the root of my PC. Even I have the IT install it for me, they won't install all packages needed. And for the same reason, I cannot build it from scratch, because I have not right to install the "node.js". On Tuesday, September 15, 2015

Re: [julia-users] Re: IDE for Julia

Last night I started experimenting with Gtk, and started making a sketch of what a Julia IDE might look like. In the process I am writing down a list of things that are probably needed before a Julia IDE getting a list of things that probably need to exist before a Julia IDE can be completed.

[julia-users] Re: Juno + Julia 0.4

Have you tried the project-manager package? It has some support for defining and switching between projects. Scott On Tuesday, 15 September 2015 14:06:03 UTC+1, David Higgins wrote: > > The julia-client package for Atom is from the Juno project. It requires > Julia 0.4 so I haven't tried it

[julia-users] Pkg.checkout("PkgName") slow on Windows

When I try to update a module I have on a local GitLab server using Pkg.checkout("PkgName"), the command seems to hang for a long time after the "Pulling PkgName latest master..." line: julia> tic(); Pkg.checkout("PkgName"); toc() INFO: Checking out PkgName master... INFO: Pulling PkgName