Thanks Seth, for your suggestion. I will take a look at LightGraphs.jl to
see if it has all the features I need. It would be great if I could use
only julia code (without using python libraries) in my project.
Best,
Charles
On 11 July 2015 at 05:45, Seth <catch...@bromberger.com> wrote:
> Hi Charles,
>
> igraph is indeed very good, but you might want to look at some
> Julia-native graph libraries. Graphs.jl and LightGraphs.jl are available,
> and the latter performs very favorably compared with igraph.
>
> On Friday, July 10, 2015 at 4:57:36 PM UTC-7, Charles Santana wrote:
>>
>> Hi again,
>>
>> Just to say that I have installed the nightly version of julia
>> (0.4.0-dev+5920 (2015-07-10) and checked out the master branch of PyCall,
>> by running:
>>
>> Pkg.rm("PyCall")
>> Pkg.add("PyCall")
>> Pkg.checkout("PyCall")
>>
>> Now my python-igraph library seems to be working perfectly. I could
>> successfully run this toy example:
>>
>> ```
>> julia> using PyCall
>> julia> @pyimport igraph
>> julia> gg = igraph.Graph()
>> julia> g = gg[:Barabasi](5)
>> julia> g[:degree]()
>> 5-element Array{Any,1}:
>> 3
>> 1
>> 1
>> 2
>> 1
>>
>> ```
>>
>> I will start working with python-igraph, but I will also take a look at
>> Cxx.jl to see if I can use it as an alternative. Thanks a lot for your help
>> and your advice!
>>
>> Best,
>>
>> Charles
>>
>> On 11 July 2015 at 01:37, Yichao Yu <yyc...@gmail.com> wrote:
>>
>>> On Fri, Jul 10, 2015 at 7:16 PM, Charles Novaes de Santana
>>> <charles...@gmail.com> wrote:
>>> > Thanks for your answer, Yichao! I am installing the nightly version of
>>> julia
>>> > and I will try the master version of PyCall.
>>> >
>>> > I was trying to wrap C++-Igraph into my julia code by using Cpp.jl,
>>> however
>>> > it seems to be a bit tricky because my c++ codes are not that simple.
>>> Do you
>>> > (or anybody else) recomend another way to wrap c++ code into julia? I
>>> took a
>>> > look at Cxx.jl and it seems to be more intuitive to use, but I didn't
>>> try it
>>> > yet.
>>>
>>> If it only has c++ interface (or you need to wrap the c++ interface)
>>> I'd probably recommand sticking to the python interface for now and
>>> use Cxx.jl once LLVM3.7 is out (and possibly after julia master
>>> swiches to it).
>>>
>>> If you want to compile julia and llvm yourself, you can try Cxx.jl now
>>> too.
>>>
>>> >
>>> > Best,
>>> >
>>> > Charles
>>> >
>>> > On 11 July 2015 at 00:39, Yichao Yu <yyc...@gmail.com> wrote:
>>> >>
>>> >> On Fri, Jul 10, 2015 at 6:07 PM, Charles Novaes de Santana
>>> >> <charles...@gmail.com> wrote:
>>> >> > Dear Julians,
>>> >> >
>>> >> > Igraph is an amazing library to work with graphs, currently
>>> available
>>> >> > for R,
>>> >> > C/C++ and Python (http://igraph.org). I am trying to use it with
>>> Julia
>>> >> > by
>>> >> > using PyCall but I am facing some issues very similar to the ones
>>> >> > related in
>>> >> > the following links:
>>> >> >
>>> >> > https://github.com/JuliaLang/pyjulia/issues/32
>>> >> >
>>> >> > https://github.com/stevengj/PyCall.jl/issues/95
>>> >> >
>>> >> > https://github.com/stevengj/PyCall.jl/issues/96
>>> >> >
>>> >> > I just tried to run the following commands:
>>> >> >
>>> >> > julia> using PyCall
>>> >> >
>>> >> > julia> @pyimport igraph
>>> >> >
>>> >> > And got the following error:
>>> >> >
>>> >> > signal (11): Segmentation fault
>>> >> > PyType_Ready at /usr/lib/x86_64-linux-gnu/libpython2.7.so (unknown
>>> line)
>>> >> > call at /home/cdesantana/.julia/v0.4/PyCall/src/pytype.jl:73
>>> >> > pyjlwrap_type at
>>> /home/cdesantana/.julia/v0.4/PyCall/src/pytype.jl:415
>>> >> > pyinitialize at
>>> /home/cdesantana/.julia/v0.4/PyCall/src/pyinit.jl:289
>>> >> > jlcall_pyinitialize_42896 at (unknown line)
>>> >> > jl_apply_generic at
>>> >> > /home/cdesantana/Downloads/julia/usr/bin/../lib/libjulia.so (unknown
>>> >> > line)
>>> >> > pyinitialize at
>>> /home/cdesantana/.julia/v0.4/PyCall/src/pyinit.jl:329
>>> >> > jlcall_pyinitialize_42814 at (unknown line)
>>> >> > jl_apply_generic at
>>> >> > /home/cdesantana/Downloads/julia/usr/bin/../lib/libjulia.so (unknown
>>> >> > line)
>>> >> > pyimport at /home/cdesantana/.julia/v0.4/PyCall/src/PyCall.jl:111
>>> >> > jl_apply_generic at
>>> >> > /home/cdesantana/Downloads/julia/usr/bin/../lib/libjulia.so (unknown
>>> >> > line)
>>> >> > unknown function (ip: -775406212)
>>> >> > unknown function (ip: -775409006)
>>> >> > unknown function (ip: -775406239)
>>> >> > unknown function (ip: -775409006)
>>> >> > unknown function (ip: -775409505)
>>> >> > unknown function (ip: -775404607)
>>> >> > unknown function (ip: -775403490)
>>> >> > unknown function (ip: -775333218)
>>> >> > jl_toplevel_eval_in at
>>> >> > /home/cdesantana/Downloads/julia/usr/bin/../lib/libjulia.so (unknown
>>> >> > line)
>>> >> > eval_user_input at REPL.jl:54
>>> >> > jlcall_eval_user_input_42620 at (unknown line)
>>> >> > jl_apply_generic at
>>> >> > /home/cdesantana/Downloads/julia/usr/bin/../lib/libjulia.so (unknown
>>> >> > line)
>>> >> > anonymous at task.jl:83
>>> >> > unknown function (ip: -775379519)
>>> >> > unknown function (ip: 0)
>>> >> > Segmentation fault (core dumped)
>>> >> >
>>> >> > I am running Julia version 0.4.0-dev+3735 (2015-03-09). I just
>>> installed
>>> >>
>>> >> FWIW, this is a REALLY old 0.4-dev version. There's been various bug
>>> >> fixes after that and you'll probably have more luck with a more recent
>>> >> version.
>>> >>
>>> >> > PyCall by calling "Pkg.add("PyCall"). I have installed python-igraph
>>> >> > version
>>> >> > 0.6.5-1.
>>> >>
>>> >> Note that the latest release of PyCall might not work with current
>>> >> master, You might need a checkout (master) version of PyCall.
>>> >>
>>> >> >
>>> >> > Any clue? I am seriously thinking about wrapping Igraph for C/C++
>>> into
>>> >> > my
>>> >> > julia code. Do you think it can be more stable?
>>> >>
>>> >> Depending on how simple that interface is, that might be a good idea.
>>> >> And I think that's a better way in the long term.
>>> >>
>>> >> >
>>> >> > Thanks for any help!
>>> >> >
>>> >> > Best,
>>> >> >
>>> >> > Charles
>>> >> > --
>>> >> > Um axé! :)
>>> >> >
>>> >> > --
>>> >> > Charles Novaes de Santana, PhD
>>> >> > http://www.imedea.uib-csic.es/~charles
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> > Um axé! :)
>>> >
>>> > --
>>> > Charles Novaes de Santana, PhD
>>> > http://www.imedea.uib-csic.es/~charles
>>>
>>
>>
>>
>> --
>> Um axé! :)
>>
>> --
>> Charles Novaes de Santana, PhD
>> http://www.imedea.uib-csic.es/~charles
>>
>
--
Um axé! :)
--
Charles Novaes de Santana, PhD
http://www.imedea.uib-csic.es/~charles
