[julia-users] Maintainer responsibilities

2014-01-24 Thread Hans W Borchers
[First Question] We had a discussion on maintaining the Calculus package recently. So my question is: In Julia, does a maintainer have the obligation -- say, in some loose sense -- to accept feature requests? Background: I am the author of several packages (in other languages/systems). I am

Re: [julia-users] Problem with Images

2014-01-24 Thread Isaiah Norton
It's fixed on master, for now do Pkg.checkout(Images) until new version is tagged. On Fri, Jan 24, 2014 at 9:40 AM, Robert DJ math.rob...@gmail.com wrote: Hi I am having trouble making the Images package work. I've just pull'd and make'd the latest version of Julia and removed my .julia

[julia-users] Re: not loading python module

2014-01-24 Thread Rajn
Hi Thanks Steve, This is how far I got after making the following changes: changed PYTHONPATH to C:\Python27 and in PyCall.jl ENV[PYTHONHOME]=exec_prefix using PyCall gives me this error now julia using PyPlot WARNING: No working GUI backend found for matplotlib. ERROR: PyError

[julia-users] Re: not loading python module

2014-01-24 Thread Jake Bolewski
Are you able to import any of the following from python? from matplotlib.backends import backend_wxagg from matplotlib.backends import backend_gtkagg from matplotlib.backends import backend_qtagg -Jake On Friday, January 24, 2014 12:35:12 PM UTC-5, Rajn wrote: Hi Thanks Steve, This is how

[julia-users] Forum please

2014-01-24 Thread Don Gateley
I'm hoping someone puts together a phpBB (or similar) site such as Oculus Rift uses here: http://oculusrift.com/ Such an organized site where you could drill down to topics of interest through broader categories would really be helpful. It would be best, of course, if it was set up and

[julia-users] Bug or feature? How does = decide whether to do a copy or deepcopy?

2014-01-24 Thread Eric Ford
I don't understand why the first function doesn't change x, but the second function does. Is the = calling deepcopy in f1, but copy in f2? If so, why? function f1(x::Array) w = x for i in 1:length(x) w[i] += 10.0 end w += 10.0 return w end function f2(x::Array) w = x for i in

Re: [julia-users] Forum please

2014-01-24 Thread Harlan Harris
I'd also suggest StackOverflow as a much better platform than forums for QA around Julia. http://stackoverflow.com/questions/tagged/julia-lang On Fri, Jan 24, 2014 at 1:36 PM, Spencer Russell s...@mit.edu wrote: As far as I can tell the only advantage of a traditional forum format over the

Re: [julia-users] Problem with Images

2014-01-24 Thread Robert DJ
That worked like a charm :-) Thanks!

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
But if I change the Env variable to C:\Python27 i.e., without semicolon everything is good. This is strange. What I mean is that python module is being recognized now but I still get the matplotlib issue... On Fri, Jan 24, 2014 at 3:27 PM, Rajan Gurjar rjngrj2...@gmail.com wrote: I also

[julia-users] Re: not loading python module

2014-01-24 Thread Steven G. Johnson
On Friday, January 24, 2014 12:35:12 PM UTC-5, Rajn wrote: This is how far I got after making the following changes: changed PYTHONPATH to C:\Python27 and in PyCall.jl ENV[PYTHONHOME]=exec_prefix I'm confused, what did you set PYTHONHOME to?

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
in the windows environment variable I set it to: C:\Python27 by going to the Computer properties and setting the environment variable there. in Julia's Pycall.jl , I have ENV[PYTHONHOME]=exec_prefix On Fri, Jan 24, 2014 at 3:41 PM, Steven G. Johnson stevenj@gmail.comwrote: On Friday,

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
Sorry Steve, There is no PYTHONPATH in the Windows environment variable. I have not set that variable. I miswrote earlier. There is only PYTHONHOME which is set to C:\Python27 i.e., I go to Computer-Properties-environment variable and then PYTHONHOME=C:\Python27 On Fri, Jan 24, 2014 at 3:56

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
So I see two issues, first is not recognizing the backend and the second is not able to find affine_transform.py. I looked around in Python27 and cannot find either i.e., matplotlib._path nor affine_transform.py Wonder why? On Fri, Jan 24, 2014 at 3:59 PM, Rajan Gurjar rjngrj2...@gmail.com

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
I updated matplotlib. When I run in Julia using PyPlot it now gives only one error: no working GUI backend found for matplotlib. However, the window soon crashes with this error: Runtime error in C\julia-05c6461b55\bin\julia-readline.exe R6034 An application has made an attempt to load C

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
Any relation to the issue on this link because dll load failed previously and now it could be something similar? http://bugs.python.org/issue3308 Basically MinGW erroneously ships a .lib saying localtime is in MSVCR90.DLL when it isn't. That means there is no link failure but the pyd will fail

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajan Gurjar
Ok, looks like I may have to uninstall and try Anaconda. I tried setting PYTHONPATH to C:\Python27\Lib -did not work and then to C:\Python27 but nothing changed. Thanks folks. Will let you know if things work after fresh install On Fri, Jan 24, 2014 at 7:16 PM, Jake Bolewski

Re: [julia-users] New Year's resolutions for DataArrays, DataFrames and other packages

2014-01-24 Thread John Myles White
I think they’re uncorrelated, but you’d have to ask Wes to know for sure. — John On Jan 24, 2014, at 12:19 AM, Matthias BUSSONNIER bussonniermatth...@gmail.com wrote: Le 24 janv. 2014 à 04:51, Jonathan Malmaud a écrit : Sounds reasonable. As a temporary measure for people who want that

[julia-users] Random comments on Julia and its manual

2014-01-24 Thread David Piepgrass
I started learning Julia today so I have some random comments/questions. Firstly, Julia looks great. It is only the second dynamic language that I have ever seriously felt like using. The first dynamic language I liked was Ruby, until I came to appreciate the shortcomings of a dynamic language

Re: [julia-users] Re: not loading python module

2014-01-24 Thread Rajn
Well actually I tried linux too. I have latest Xubuntu 13.0 version and Julia does not even install (worse than Windows) when I try its repositories suggested in the download webpage. Some issue with unmet dependencies with some math library. I guess I will stick to Octave and python for now

[julia-users] julia unable to install on Ubuntu 13.10

2014-01-24 Thread Rajn
After my several failed attempts to run PyPlot through Julia in Windows, I decided to give up and try Linux. Guess it was even worse. First I added to regular repository (not the nightlybuild) then added the dep-repository then updated and then installed julia Here's the latest: Unpacking

Re: [julia-users] Bug or feature? How does = decide whether to do a copy or deepcopy?

2014-01-24 Thread John Myles White
Hi Eric, I think you’re being confused by the distinction between the bindings of variables and values, which can be bound to variables. If w is an Array, then an expression like w = [1, 2, 3] assigns a value (namely the value of an array containing 1, 2 and 3) to the variable w. In

Re: [julia-users] julia unable to install on Ubuntu 13.10

2014-01-24 Thread João Felipe Santos
There is a conflict between Ubuntu's r-mathlib package and Julia's RMath package: they both want to install Rmath.h to the same path. If you can live without r-libmath, you can uninstall it and then install Julia. Having said that, I usually compile my own distribution and install it to my home

Re: [julia-users] julia unable to install on Ubuntu 13.10

2014-01-24 Thread Rajn
I use R quite often. Would it be affected if I uninstall Rmath? I kind of understand what you are suggesting in your second step but never worked with Github so don't know about cloning and not sure what do you mean by switching to 0.2.0- switching from what? And how do I do that? Should I

Re: [julia-users] Bug or feature? How does = decide whether to do a copy or deepcopy?

2014-01-24 Thread Eric Ford
Hi Spencer, Thanks for trying to explain the behavior. I can see how that might make sense to a computer scientist. However, I think most scientists would agree that having the behavior of = depends on whether the right hand side is an array or an expression is counter intuitive. In any