Re: [julia-users] Re: JuliaCon schedule announced

2016-07-18 Thread Christian Peel
I saw quite a few videos with the same problem. On Mon, Jul 18, 2016 at 1:52 AM, Mauro wrote: > A request for a correction: in Keno's Gallium talk the bottom line of > the screen is cut off. As most of his talk is a demo, where most things > happen in the bottom line, this

Re: [julia-users] Re: JuliaCon schedule announced

2016-06-30 Thread Christian Peel
A link: https://www.youtube.com/user/JuliaLanguage/videos On Thu, Jun 30, 2016 at 3:43 AM, Viral Shah wrote: > They have already started appearing. Hopefully by next week they will all > be up and we will announce then. > > -viral > On Jun 28, 2016 11:44 AM, "mmh"

Re: [julia-users] ControKTH

2016-06-11 Thread Christian Peel
Here are two pertinent links * https://www.kth.se/polopoly_fs/1.627826!/harenstam-nielsen_lindemann.pdf * https://www.kth.se/social/files/55f124f8f276547bba8a16f9/controldoc.pdf I guess they refer to a student project to implement basic control theory concepts in Julia. Even if it is not too

Re: [julia-users] Re: why's my julia code running slower than matlab, despite performance tips

2016-05-08 Thread Christian Peel
> The usual solution is to devectorized your code and to use loops (except for matrix multiplication if you have large matrices). I am hopeful that ParallelAccelerator.jl [1][2] or similar projects can enable fast vectorized Julia code [1] https://github.com/IntelLabs/ParallelAccelerator.jl [2]

Re: [julia-users] Re: What's in your .juliarc.jl file?

2015-12-23 Thread Christian Peel
To enable a per-directory startup file, I use the following code (which came from this list) if chomp(readall(`pwd`)) != ENV["HOME"] if isfile("juliarc.jl") require("juliarc.jl") end end On Wed, Dec 23, 2015 at 9:53 PM, Ethan Anderes wrote: > I can’t

[julia-users] Re: Ehsan Totoni on ParallelAccelerator.jl in San Francisco on thurs Dec 17

2015-12-20 Thread Christian Peel
] https://soundcloud.com/christian-peel/ehsan-totoni-on-parallelacceleratorjl [3] https://www.youtube.com/watch?v=O6PN-kpbNTw On Mon, Dec 14, 2015 at 10:58 AM, Phil Tomson <philtom...@gmail.com> wrote: > Will this talk be recorded? > > On Sunday, December 13, 2015 at 10:58:31 AM UTC-8,

[julia-users] Ehsan Totoni on ParallelAccelerator.jl in San Francisco on thurs Dec 17

2015-12-13 Thread Christian Peel
This thursday Dec 17 Ehsan Totoni of Intel Labs will speak on ParallelAccelerator.jl [1] in San Francisco to the SF Julia Users group [2]. ParallelAccelerator is a compiler that performs aggressive analysis and optimization on top of the Julia compiler. It can automatically eliminate overheads

Re: [julia-users] Re: The Julia Community Standards

2015-10-12 Thread Christian Peel
I don't see a mention in the docs as to where the name Julia came from; did I miss it? This was one of the first things I looked for when I learned about Julia. As humans, we like a good origin story, and often we invent stories if there is not one present. My guess is that even during the

Re: [julia-users] Re: What's the reason of the Success of Python?

2015-10-01 Thread Christian Peel
I completely agree with those who suggested use of "x = A\b" instead of x=inv(A)*b. Do any of you have comments on things that can be done to make Julia more 'hackable' and even easier to use? Am I alone in wishing for functionality such as that in Autoreload.jl [1] that is transparently built

Re: [julia-users] Re: What's the reason of the Success of Python?

2015-09-30 Thread Christian Peel
One could also ask what the reason for the success of Matlab and R; I don't know R, but I can speak a bit about Matlab. 1) Matlab has great high-level vectorized notation. If you're a student or engineer, it's dramatically easier to solve a linear system in Matlab (x=inv(A)*b) than it is in

Re: [julia-users] JuliaCon 2015 videos

2015-08-15 Thread Christian Peel
My thanks to Viral and all the JuliaCon presenters and organizers! I've enjoyed viewing several videos this morning; I think they will be a valuable resource for others looking to use Julia. On Sat, Aug 15, 2015 at 11:31 AM, Viral Shah vi...@mayin.org wrote: Next set: 1. Sebastien Martin:

Re: [julia-users] Juliacon 2015 videos?

2015-08-13 Thread Christian Peel
We’ll start doing them in groups... Thanks! That's great news. On Wed, Aug 12, 2015 at 10:11 PM, Viral Shah vi...@mayin.org wrote: We’ll start doing them in groups. One at a time would be a lot of work, and take several weeks! -viral On 13-Aug-2015, at 10:24 am, Christian Peel

Re: [julia-users] Juliacon 2015 videos?

2015-08-12 Thread Christian Peel
I guess that you're waiting to release them all at once. Please consider releasing each video as it is finished; perhaps accompanied by a post to this group. I think this would focus attention on each talk, and encourage conversation on talks that may not get so much attention in an all-at-once

Re: [julia-users] [ANN] SparseVectors

2015-07-29 Thread Christian Peel
Nice! I saw somewhere recently that the plan was to move more out of base and into packages. I'm curious as to why this needs to go into Julia base. cheers On Wed, Jul 29, 2015 at 2:42 AM, Dahua Lin linda...@gmail.com wrote: I searched over the forum and it seems that I did not announce this

[julia-users] San Francisco Bay meetup: Jeff Bezanson on Aug 13, future meetups

2015-07-25 Thread Christian Peel
We will have a meetup in San Francisco on Aug 13 with Jeff Bezanson speaking on Julia: future directions and speculations, and Kyle Barbary speaking on JuliaAstro. See http://www.meetup.com/Bay-Area-Julia-Users/events/223908654/ for more info and to register. We're grateful to Forio for hosting.

Re: [julia-users] Re: Juliacon 2015 videos?

2015-07-10 Thread Christian Peel
I understand the attraction of releasing all the JuliaCon videos at once; another option is to just release them as you finish editing or otherwise preparing each one, in a sort of just-in-time way :-)This later technique of releasing one-by-one may even allow more focused attention on one

Re: [julia-users] Re: Problem with if else in Julia

2015-05-15 Thread Christian Peel
I've also noticed this. Let's say a = 1, ix = [1]. So a[ix] gives an error while a[1] and a[a] do not give errors. In Matlab, there is no difference between the type of a and ix, while in other languages there is.In Matlab a([1]) doesn't produce an error, while in Julia a[[1]] does. I'm

Re: [julia-users] Re: citing Julia

2015-05-15 Thread Christian Peel
http://julialang.org/publications/ lists some publications, and even has a BibTeX file. I guess that Jeff Bezanson's PhD thesis will get added there soon. On Fri, May 15, 2015 at 3:24 PM, ron.s.r...@gmail.com wrote: What's the current suggestion for this? I'm sending in an revised article

[julia-users] Re: ANN: LLLplus: lattice reduction, closest vector point, VBLAST

2015-05-06 Thread Christian Peel
Thanks! ArrayViews does work with axpy!() and does help both with execution time and memory. On Tue, May 5, 2015 at 7:33 PM, Patrick O'Leary patrick.ole...@gmail.com wrote: On Tuesday, May 5, 2015 at 9:06:50 PM UTC-5, Christian Peel wrote: I have a question for the BLAS gurus: I can use

[julia-users] ANN: LLLplus: lattice reduction, closest vector point, VBLAST

2015-05-05 Thread Christian Peel
The LLLplus package https://github.com/christianpeel/LLLplus.jl provides functions to do LLL and Seysen lattice reduction, a 'sphere decoder' to solve the closest vector point problem, and a VBLAST matrix decomposition (used in multi-antenna wireless). For a basic example try N = 1000; H =

[julia-users] configuring style of PyPlot

2015-04-28 Thread Christian Peel
Is it possible to use MatPlotlib style commands in PyPlot? From http://matplotlib.org/users/style_sheets.html I get the impression that I can quickly switch to a 'ggplot' style interface. Translating the commands on that page to Julia I thought I could do something like

[julia-users] Re: configuring style of PyPlot

2015-04-28 Thread Christian Peel
Thanks. The main problem I had was that I was using an older version of Matplotlib; I've upgraded it and used the ggplot style. Thanks for your help. On Tue, Apr 28, 2015 at 3:44 PM, Steven G. Johnson stevenj@gmail.com wrote: Yes, in general you can do anything from PyPlot that you can

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

2015-04-25 Thread Christian Peel
Nice! I'm curious how tough it would be to simulate Shor's algorithm, even if it's just to factor 15; Is there some reason that this is too tough to include as an example? chris On Thu, Apr 23, 2015 at 6:02 PM, Jarrett Revels jarrettrev...@gmail.com wrote: I'm happy to say that I've finally

[julia-users] using ctrl-p to navigate history

2015-04-24 Thread Christian Peel
I'd like to use ^p and ^n to navigate the REPL history the way that the up and down arrows do now in the latest v0.4 builds. That is, when I type a at the REPL and type ctrl-p, then I'd like to see the most recent command that I executed that started with a (see

Re: [julia-users] Re: Tip: use eachindex when iterating over arrays

2015-04-19 Thread Christian Peel
Thanks for the PSA; I'd enjoy more of them. On Sun, Apr 19, 2015 at 7:56 PM, Dahua Lin linda...@gmail.com wrote: Thanks for the great work! Dahua On Monday, April 20, 2015 at 9:47:13 AM UTC+8, Tim Holy wrote: For those of you wanting to write code that will perform well on different

[julia-users] search on docs.julialang.org doesn't seem to work

2015-04-15 Thread Christian Peel
Searching the documentation on docs.julialang.org doesn't seem to work for me. I tried in several different browsers, two different macines, and tried it several hours ago and now.I'm certain that I could previously use the 'search docs' box to ... search, but it doesn't seem to work now. Is

Re: [julia-users] Interpreting @time results in parallel

2015-04-02 Thread Christian Peel
Ed Schmerling essentially asked the same question, and did not get a satisfactory answer as described at https://github.com/schmrlng/CPUTime.jl/issues/1 In this link he says For multi-core machines, I still don't know a good way to reliably benchmark code when you've got other stuff going on

Re: [julia-users] Looking for incomplete SVD -- need only some of the singular values

2015-03-15 Thread Christian Peel
What's the reason that you don't want to use Julia's SVD directly? Is your matrix especially large? Some links that may be useful: Approximating the SVD using Julia: http://beowulf.lcs.mit.edu/18.337/projects/Turner-Presentation_SVD-Julia.pdf https://github.com/alexjturner/SVDapprox

Re: [julia-users] Re: indexing with non Integer Reals is deprecated

2015-03-15 Thread Christian Peel
More generally, it is important to keep the option of very simple (Matlab-style) Julia. I wonder whether users could come up with other examples where simplicity, convenience are sacrificed for performance, elegance of design, etc ? I confess that I don't like that all four of the following

[julia-users] fixed-point questions

2015-03-14 Thread Christian Peel
I've been toying around with implementing a fixed-point type in Julia. This has been mentioned before (http://bit.ly/1DlF2S0) I guess that it is on one or more person's to-do list; does anyone have a fixed-point type they can share? I made a toy type at this gist:

Re: [julia-users] fixed-point questions

2015-03-14 Thread Christian Peel
FixedPointNumbers.jl. --Tim On Saturday, March 14, 2015 06:28:00 PM Christian Peel wrote: I've been toying around with implementing a fixed-point type in Julia. This has been mentioned before (http://bit.ly/1DlF2S0) I guess that it is on one or more person's to-do list; does anyone have

Re: [julia-users] question about module, using/import

2015-03-13 Thread Christian Peel
Could you give further details such as * Code that very explicitly shows the error you see in as simple of a way possible * Include the version of Julia that you're using * are you able to use PyPlot in other scenarios? On Thu, Mar 12, 2015 at 8:07 AM, antony schutz antonysch...@gmail.com

[julia-users] Re: CALL FOR PARTICIPATION: JuliaCon 2015, June 24-28, MIT

2015-03-02 Thread Christian Peel
It looks to me like the talks you asked about are here https://www.youtube.com/channel/UCXeOiWjj3rcYUQqfgelTDWQ On Tuesday, February 24, 2015 at 5:37:41 AM UTC-8, Jiahao Chen wrote: On Tuesday, February 24, 2015 at 1:12:18 AM UTC-5, Christian Peel wrote: Are you open to suggestions

[julia-users] Re: CALL FOR PARTICIPATION: JuliaCon 2015, June 24-28, MIT

2015-02-23 Thread Christian Peel
Are you open to suggestions? On Saturday in Berkeley we heard Katherine Hyatt give a great talk on using Julia for simulating quantum systems. She also talked about how it was much easier to get people up to speed on Julia than C++ and went in to details as to why. So there's two angles, the

Re: [julia-users] can a julia script do multiple dispatch itself?

2015-02-12 Thread Christian Peel
, Christian Peel sanp...@gmail.com javascript: wrote: In Julia, if I have multiple functions with the same name but different arguments, the core of the language takes care of calling the right function. Let's say I have a cell which contains some functions which are related

[julia-users] Re: statistical accumulator

2015-02-12 Thread Christian Peel
-5, Christian Peel wrote: I'm curious if someone has implemented a statistical accumulator in julia similar to that in boost: http://www.boost.org/doc/libs/1_55_0/doc/html/accumulators.html I'm aware of the accumulator in DataStructures.jl, but if I read it right it doesn't do

[julia-users] statistical accumulator

2015-02-11 Thread Christian Peel
I'm curious if someone has implemented a statistical accumulator in julia similar to that in boost: http://www.boost.org/doc/libs/1_55_0/doc/html/accumulators.html I'm aware of the accumulator in DataStructures.jl, but if I read it right it doesn't do statistical accumulation, just a

[julia-users] can a julia script do multiple dispatch itself?

2015-02-11 Thread Christian Peel
In Julia, if I have multiple functions with the same name but different arguments, the core of the language takes care of calling the right function. Let's say I have a cell which contains some functions which are related, but each take slightly different arguments. I'd like to call each of

[julia-users] Re: A juliarc file that is specific to a project/directory/repository

2015-02-08 Thread Christian Peel
See this discussion: https://groups.google.com/forum/#!topic/julia-users/NCRtt3LNCMU The gist is that if one wants to have Julia run startDir/start.jl, then add the following code to one's ~/.juliarc.jl if isfile(start.jl) include(start.jl) end On Saturday, February 7, 2015 at 11:51:58 PM

[julia-users] Re: comparing compilation times for matlab and julia

2015-01-22 Thread Christian Peel
, January 18, 2015 at 10:04:58 PM UTC-6, Christian Peel wrote: I'm enjoying learning Julia. I have the same toy script written in Matlab and Julia at the following URL: https://github.com/ChristianPeel/toySims/tree/master/mimoToys Running the following in matlab tic; mimoUPtoy

[julia-users] Re: comparing compilation times for matlab and julia

2015-01-18 Thread Christian Peel
my support for making this change. On Sunday, January 18, 2015 at 8:04:58 PM UTC-8, Christian Peel wrote: I'm enjoying learning Julia. I have the same toy script written in Matlab and Julia at the following URL: https://github.com/ChristianPeel/toySims/tree/master/mimoToys Running

[julia-users] comparing compilation times for matlab and julia

2015-01-18 Thread Christian Peel
I'm enjoying learning Julia. I have the same toy script written in Matlab and Julia at the following URL: https://github.com/ChristianPeel/toySims/tree/master/mimoToys Running the following in matlab tic; mimoUPtoy(200,4,4,4,0,12,12,[-10:5:30]); toc takes about 0.82 seconds on a

[julia-users] Dan Luu's critique of Julia: needs commented code, better testing, error handling, and bugs fixed.

2014-12-29 Thread Christian Peel
Dan Luu has a critique of Julia up at http://danluu.com/julialang/ (reddit thread at http://bit.ly/1wwgnks) Is the language feature-complete enough that there could be an entire point release that targeted some of the less-flashy things he mentioned? I.e. commented code, better testing, error

Re: [julia-users] Dan Luu's critique of Julia: needs commented code, better testing, error handling, and bugs fixed.

2014-12-29 Thread Christian Peel
Dan, thanks for the honest critique. Keno, Stephan, Jeff, thanks for the quick and specific replies. Tim, thanks for the very explicit instructions on how newbies such as myself can contribute. I also think julia-users is very welcoming, which helps me be bullish on the language. On Monday,

Re: [julia-users] What is the use of J[:,:] = K*M please?

2014-12-15 Thread Christian Peel
or not, a new or existing output matrix used, and more. On Monday, December 15, 2014 2:50:24 AM UTC-8, Tim Holy wrote: Some of this is in the InPlaceOps.jl package. --Tim On Sunday, December 14, 2014 10:38:56 PM Christian Peel wrote: I'm curious if it would be possible to do this in some way

Re: [julia-users] What is the use of J[:,:] = K*M please?

2014-12-15 Thread Christian Peel
Thanks, that's an educational conversation; started 3 years ago and continues to the present. On Monday, December 15, 2014 11:28:30 AM UTC-8, Andreas Noack wrote: See the discussion here https://github.com/JuliaLang/julia/issues/249 2014-12-15 14:14 GMT-05:00 Christian Peel sanp

Re: [julia-users] What is the use of J[:,:] = K*M please?

2014-12-14 Thread Christian Peel
I'm curious if it would be possible to do this in some way that uses explicit operators. For example the following three functions: # make local variable J storing result which keeps input array J unaffected function f1(J) J = K*M end # update the input J with result function f2(J) J @= K*M

[julia-users] Re: MatrixDepot.jl: A Test Matrix Collection

2014-12-12 Thread Christian Peel
could you discuss the properties? Can we add more properties?What do the 'inverse' and 'eigen' properties mean? On Friday, December 12, 2014 1:53:09 PM UTC-8, cdm wrote: great references, Weijian ... it turns out that the UF Sparse collection has a filed issue at:

Re: [julia-users] Re: home page content

2014-12-10 Thread Christian Peel
One thing that I would very much appreciate is some kind of development schedule. For example - Some kind of general roadmap - a plan for when 0.4 and future releases will come - Any plans to switch to a regular schedule? (yearly, six months, ...) - What features remain before a

Re: [julia-users] Re: home page content

2014-12-10 Thread Christian Peel
. Everybody would love to see weekly updates. Not many people have both the time and desire to do the work. -- John On Dec 10, 2014, at 10:41 AM, Tamas Papp tkp...@gmail.com javascript: wrote: On Wed, Dec 10 2014, Christian Peel sanp...@gmail.com javascript: wrote: provide

Re: [julia-users] impressions and questions from a Matlab user

2014-11-24 Thread Christian Peel
haven't already, read at least up through including the Tools section of http://docs.julialang.org/en/release-0.3/manual/performance-tips/ You should definitely profile; that will tell you where the problem is. --Tim On Sunday, November 23, 2014 11:35:03 PM Christian Peel wrote: What's

Re: [julia-users] impressions and questions from a Matlab user

2014-11-23 Thread Christian Peel
22 novembre 2014 à 19:24 -0800, Christian Peel a écrit : Hi all, I'm excited about Julia because of the speed and open nature of the language. I have a couple of suggestions from the past couple of days of my time with the language: (1) decrease the JIT time to allow faster code

Re: [julia-users] impressions and questions from a Matlab user

2014-11-23 Thread Christian Peel
be an open issue or even a PR about getting the `strctrl-p` behavior. Ctrl-p/n work to step through history, without typing ctrl-r On Sat, Nov 22, 2014 at 10:24 PM, Christian Peel sanp...@gmail.com javascript: wrote: Hi all, I'm excited about Julia because of the speed and open nature

Re: [julia-users] impressions and questions from a Matlab user

2014-11-23 Thread Christian Peel
...@gmail.com javascript: wrote: On Sun, Nov 23 2014, Stefan Karpinski ste...@karpinski.org javascript: wrote: On Sun, Nov 23, 2014 at 6:02 AM, Christian Peel sanp...@gmail.com javascript: wrote: Milan, Thanks for the comments. I also am confident that info about what line errors

Re: [julia-users] impressions and questions from a Matlab user

2014-11-23 Thread Christian Peel
specialized, and therefore fewer methods need to be built. --Tim On Sunday, November 23, 2014 08:06:34 PM Milan Bouchet-Valat wrote: Le dimanche 23 novembre 2014 à 10:32 -0800, Christian Peel a écrit : Stefan, Thank you for the explanation of the issues with line numbers

Re: [julia-users] impressions and questions from a Matlab user

2014-11-23 Thread Christian Peel
What's your versioninfo? I used Version 0.3.0 (x86_64-apple-darwin13.3.0) on a 2013 macbook which took about 9.6 seconds to include the function, try to run it, and find the syntax error. On a 2009 iMac with version 0.3.2 of Julia (x86_64-apple-darwin14.0.0) it took 11.3 seconds.Just

[julia-users] impressions and questions from a Matlab user

2014-11-22 Thread Christian Peel
Hi all, I'm excited about Julia because of the speed and open nature of the language. I have a couple of suggestions from the past couple of days of my time with the language: (1) decrease the JIT time to allow faster code changes, (2) automatically detect changed files and reload them,