Re: [julia-users] Re: Sumatra
Currently all works. Just to get a complete functionality is needed to implement the function find_dependencies() for Julia which is a Python function which looks for the packages and their version installed in Julia. Have you already tried sumatra? 2015-05-25 6:27 GMT-05:00 Magnus Lie Hetland m...@idi.ntnu.no: I haven't tried, but I've been looking for something along these lines, and might have a look at it. What have you tried, and what did not wor?-)
[julia-users] Averaging vectors of different length
Hello, I am trying to average together several vectors of slightly different lengths (difference might be one or two elements). For example, a, b, c might be: a = ones(10)*2. b = ones(11)*5. c = ones(12)*4. I want to make a new vector d that contains the averages of all their values considering that for the 11th element I just have to average the b and c’s values, and for the 12th value I only want c’s value. Is there an easy way to do this? Consider I want to do this for n vectors with n a big number (let’s say at least 100).
[julia-users] Sumatra
I am just curious whether someone currently uses Sumatra https://pythonhosted.org/Sumatra/ for managing and keeping track of scentific projects, of course, written in julia. I just tried it but without good results.
[julia-users] Dynamics Arrays
Hello, as far as I understand the Arrays that we often use when working with julia are dynamic arrays since they support the operations of adding or removing elements (through push!/unshift! and pop!/shift! methods). In view of this, I am wondering about what is the most primitive Array type in julia. Looking the source code at https://github.com/JuliaLang/julia/blob/master/base/array.jl is not evident for me the answer. Thanks in advance. PS: I am thinking in terms of Array and ArrayList in Java.
Re: [julia-users] savefig error
Ok, thank you! Sorry for my grammar, I often type very fast and don't check it. I see your point but it's confusing for me that the same syntax worked a few days ago. Do you know if this is a new feature of matplotlib? 2015-04-01 23:57 GMT-06:00 René Donner li...@donner.at: The following works: using PyPlot a = plot(sin(linspace(-3,3))) savefig(test.png) savefig only seems to work on the current figure. The error message you are seeing comes from the fact that that myimage[:savefig] tells julia to index myimage with :savefig, and this syntax is just sugar for getindex(myimage,:savefig). Am 02.04.2015 um 03:20 schrieb Diego Tapias dandrove...@gmail.com: Hello, I have got the same error in versions with the command savefig of matplotlib. The same code worked a few days ago . This is what I got for this command myimage[:savefig](bla.pdf): ERROR: LoadError: LoadError: KeyError: savefig not found in getindex at /home/maquinadt/.julia/v0.4/PyCall/src/PyCall.jl:252 in getindex at /home/maquinadt/.julia/v0.4/PyCall/src/PyCall.jl:257 Any help would be appreciated. PS: It happens the same for both versions 0.3 and 0.4.
[julia-users] savefig error
Hello, I have got the same error in versions with the command savefig of matplotlib. The same code worked a few days ago . This is what I got for this command myimage[:savefig](bla.pdf): ERROR: LoadError: LoadError: KeyError: savefig not found in getindex at /home/maquinadt/.julia/v0.4/PyCall/src/PyCall.jl:252 in getindex at /home/maquinadt/.julia/v0.4/PyCall/src/PyCall.jl:257 Any help would be appreciated. PS: It happens the same for both versions 0.3 and 0.4.
[julia-users] Array as function
Quick question: what does this mean
julia Array(Int,1)
1-element Array{Int64,1}:
139838919411184
?
And another question:
Is this just used for initializing an array?
Thanks.
Re: [julia-users] Re: Array as function
Hey Phil,
thanks for taking the time to explain. It makes sense now.
Best.
Diego
2015-03-11 18:20 GMT-06:00 Phil Tomson philtom...@gmail.com:
On Wednesday, March 11, 2015 at 4:49:06 PM UTC-7, Diego Tapias wrote:
Quick question: what does this mean
julia Array(Int,1)
1-element Array{Int64,1}:
139838919411184
?
And another question:
Is this just used for initializing an array?
Typically you would use something like:
my_array = Array(Int,1)
This preallocates space for your array and gives it a type. (it's an array
with only one entry)
The array isn't initialized at that point, the space is just allocated,
that's why you see:
139838919411184
in your single entry array.
If you wanted to initialize it, you could do:
my_array = zeros(Int,1)
[julia-users] create directory from a julia script
Is there a way to create a directory from a julia script? I am thinking in something like os.mkdirs(dir) of Python.
Re: [julia-users] Re: create directory from a julia script
Thanks Jack. 2015-03-04 14:02 GMT-06:00 Jack Minardi j...@minardi.org: help? mkdir INFO: Loading help data... Base.mkdir(path[, mode]) Make a new directory with name path and permissions mode. mode defaults to 0o777, modified by the current file creation mask. On Wednesday, March 4, 2015 at 2:39:18 PM UTC-5, Diego Tapias wrote: Is there a way to create a directory from a julia script? I am thinking in something like os.mkdirs(dir) of Python.
Re: [julia-users] using Docile
Hi Michael,I updated to the last version and the problem is fixed. Thank you! By the way, using Docile is not needed to generate documentation in julia0.4-dev . 2015-02-05 23:49 GMT-06:00 Michael Hatherly michaelhathe...@gmail.com: Hi Diego, ERROR: UndefVarError: @repl not defined Are you using julia 0.4-dev here? If so could you try updating julia also, since @repl is quite new. — Mike On Friday, 6 February 2015 01:59:26 UTC+2, Diego Tapias wrote: No problem while installing. But I’ve got the following error when ask for foo: ?foo ERROR: UndefVarError: @repl not defined 2015-02-05 17:37 GMT-06:00 Tom Short tshort...@gmail.com: Try installing Lexicon and load it then repeat your example. On Thursday, February 5, 2015, Diego Tapias dandr...@gmail.com wrote: Hi guys, I didn’t have problems installing Docile, however when I try to use it literally nothing happens. Before continue reading, my julia version is 0.4.0-dev. Consider the following code : filename test.jl using Docile export foo @doc This function is not important - function foo() end Now I type in Julia console: include(“test.jl”) ?foo foo (generic function with 1 method) And nothing about documentation.
[julia-users] using Docile
Hi guys, I didn’t have problems installing Docile, however when I try to use it literally nothing happens. Before continue reading, my julia version is 0.4.0-dev. Consider the following code : filename test.jl using Docile export foo @doc This function is not important - function foo() end Now I type in Julia console: include(“test.jl”) ?foo foo (generic function with 1 method) And nothing about documentation.
Re: [julia-users] using Docile
No problem while installing. But I’ve got the following error when ask for foo: ?foo ERROR: UndefVarError: @repl not defined 2015-02-05 17:37 GMT-06:00 Tom Short tshort.rli...@gmail.com: Try installing Lexicon and load it then repeat your example. On Thursday, February 5, 2015, Diego Tapias dandrove...@gmail.com wrote: Hi guys, I didn’t have problems installing Docile, however when I try to use it literally nothing happens. Before continue reading, my julia version is 0.4.0-dev. Consider the following code : filename test.jl using Docile export foo @doc This function is not important - function foo() end Now I type in Julia console: include(“test.jl”) ?foo foo (generic function with 1 method) And nothing about documentation.
Re: [julia-users] Help with the findin method
Thank you so much Jiahao!
I see my guess was correct.
What a nice group.
2015-01-31 16:50 GMT-06:00 Jiahao Chen jia...@mit.edu:
Your custom particles type is not iterable, i.e. does not have start, next
and done methods defined. See the manual for details of the iterable
interface.
Note that Julia numbers are iterable, so the following works:
julia findin([1,2,3], 2)
1-element Array{Int64,1}:
2
Thanks,
Jiahao Chen
Staff Research Scientist
MIT Computer Science and Artificial Intelligence Laboratory
[julia-users] Help with the findin method
Hello,
For a Molecular Dynamics simulation I have created a composite type
named Particle. After that, I constructed an Array consisted of
Particle elements. I want to get the index of a specific element
within the Array, however when trying it I get the following error:
`start` has no method matching start(::Particle{Float64})
I believe the error is related to the fact I have not defined how to
iterate over an Array of Particle types. I don't know how I can do
that.
Any help will be appreciated. For concreteness, I put a simple code:
type Particle{T:Float64}
r::T
v::T
end
p = Particle(1.0,1.0)
particles = [p]
for i in 1:10
p = Particle(rand(),rand())
push!(particles,p)
end
k = findin(particles, particles[3]) # I expect k = 3
`start` has no method matching start(::Particle{Float64})
Re: [julia-users] Help with the findin method
Oh, I see. Thanks Jiahao. Could you please tell me a bit more about the error message?, it is not evident for me what it means. 2015-01-31 13:24 GMT-06:00 Jiahao Chen jia...@mit.edu: We could have a new function. We have separate functions for push!([1,2,3],4,5,6) and append!([1,2,3],[4,5,6]). Thanks, Jiahao Chen Staff Research Scientist MIT Computer Science and Artificial Intelligence Laboratory On Sat, Jan 31, 2015 at 1:57 PM, Milan Bouchet-Valat nalimi...@club.fr wrote: Le samedi 31 janvier 2015 à 13:08 -0500, Jiahao Chen a écrit : k = findin(particles, particles[3]) findin requires both arguments to be collections. Try findin(particles, [particles[3]]) instead. Maybe we should add a version accepting a single element too? Any reason not to? Regards
[julia-users] Convention for naming types and functions
Hello, can you please help me with the convention for naming created types and functions? Diego.
Re: [julia-users] Convention for naming types and functions
Thank you Stefan and Tom, that's what I needed. 2015-01-29 12:05 GMT-06:00 Tom Short tshort.rli...@gmail.com: http://julia.readthedocs.org/en/latest/manual/style-guide/#use-naming-conventions-consistent-with-julia-s-base On Thu, Jan 29, 2015 at 12:56 PM, Diego Tapias dandrove...@gmail.com wrote: Hello, can you please help me with the convention for naming created types and functions? Diego.
Re: [julia-users] Re: PathPatch object in julia with PyPlot
Thanks Steven... I will take your advice into account! 2014-09-24 13:33 GMT-05:00 Steven G. Johnson stevenj@gmail.com: (Please don't double-post questions.)
[julia-users] Backend for PyPlot
For the command:
using PyPlot
I got a warning and then a error:
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/__init__.py:1282:
UserWarning: This call to matplotlib.use() has no effect
because the backend has already been chosen;
matplotlib.use() must be called *before* pylab, matplotlib.pyplot,
or matplotlib.backends is imported for the first time.
warnings.warn(_use_error_msg)
ERROR: PyError (PyImport_ImportModule) type 'exceptions.ImportError'
ImportError('No module named _backend_gdk',)
File
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/pyplot.py,
line 108, in module
_backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
File
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/backends/__init__.py,
line 32, in pylab_setup
globals(),locals(),[backend_name],0)
File
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/backends/backend_gtkagg.py,
line 14, in module
from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK,
FigureCanvasGTK,\
File
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/backends/backend_gtk.py,
line 36, in module
from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK
File
/usr/local/lib/python2.7/dist-packages/matplotlib-1.5.x-py2.7-linux-x86_64.egg/matplotlib/backends/backend_gdk.py,
line 33, in module
from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array
in pyerr_check at /home/maquinadt/.julia/v0.4/PyCall/src/exception.jl:58
in pyimport at /home/maquinadt/.julia/v0.4/PyCall/src/PyCall.jl:85
in include at ./boot.jl:246
in include_from_node1 at ./loading.jl:128
in reload_path at loading.jl:152
in _require at loading.jl:67
in require at loading.jl:51
while loading /home/maquinadt/.julia/v0.4/PyPlot/src/PyPlot.jl, in
expression starting on line 108
To fix that, I choose the backend before importing pyplot:
using PyCall
pygui(:qt)
and then
using PyPlot
But I don’t want to repeat this code whenever I start a julia session. Can
you please help me to fix this permanently?
I’m working with the julia version 0.4.0-dev+728, and matplotlib version:
1.5.x .
Thanks.
[julia-users] PathPatch object in julia with PyPlot
I share a question I did in the stackoverflow forum. http://stackoverflow.com/questions/26001119/pathpatch-object-in-julia-with-pyplot Any comments are welcome. Thank you.
[julia-users] Re: PathPatch object in julia with PyPlot
I have advanced on my question, but I’m stuck trying to change the properties of a PyObject. Consider the following code: using PyCall @pyimport matplotlib.patches as patch circle=patch.pymember(“Circle”) But when I try circle[:set_radius](1.0) or set!(circle, radius, 1.0) I got an error. Any ideas? 2014-09-23 12:27 GMT-05:00 Diego Tapias dandrove...@gmail.com: I share a question I did in the stackoverflow forum. http://stackoverflow.com/questions/26001119/pathpatch-object-in-julia-with-pyplot Any comments are welcome. Thank you.
[julia-users] How to append two arrays?
Consider the arrays given by v = [1.,2.,3.] w = [2.,4.,6.] As you know both are arrays of dimension 1. I want to form the matrix with its columns given by v and w. How can I do that (I tried with “cat” but it didn’t worh)? How can it be generalized for n arrrays. Thanks in advance
Re: [julia-users] How to append two arrays?
yay! That's what I wanted.
Thank you guys
2014-09-09 17:33 GMT-05:00 Keno Fischer kfisc...@college.harvard.edu:
If I understand correctly, you want hcat:
julia hcat(v,w)
3x2 Array{Float64,2}:
1.0 2.0
2.0 4.0
3.0 6.0
The general version of that is `cat`.
On Tue, Sep 9, 2014 at 6:31 PM, Diego Tapias dandrove...@gmail.com
wrote:
Thanks for answering!, but what if I want to form a matrix of dimension 2
and not an array of dimension 1.
2014-09-09 17:27 GMT-05:00 Stefan Karpinski ste...@karpinski.org:
append!(v,w) – it modifies and returns v.
On Wed, Sep 10, 2014 at 12:25 AM, Diego Tapias dandrove...@gmail.com
wrote:
Consider the arrays given by
v = [1.,2.,3.]
w = [2.,4.,6.]
As you know both are arrays of dimension 1. I want to form the matrix
with its columns given by v and w. How can I do that (I tried with
“cat” but
it didn’t worh)? How can it be generalized for n arrrays.
Thanks in advance
[julia-users] Discrete sine transform
Can please anyone help me with the use of the method FFTW.r2r?, I need to do a discrete sine transform over the elements of an array. Particularly I need the transform RODFT00 (option of the method). I read what the manual says but it is a little bit confused for me. Thanks in advance.
Re: [julia-users] Julia with LightTable
Your guess was right @Keno, my version of Julia was very old. I updated to the version 0.3.0 -rc1 and the problem was fixed. Thanks for the help. 2014-07-21 2:19 GMT-05:00 Keno Fischer kfisc...@college.harvard.edu: Your version of julia may be too old. How did you install julia? On Sun, Jul 20, 2014 at 4:12 PM, Diego Tapias dandrove...@gmail.com wrote: I have got the following error whenever I try to run a Julia Script with the editor LightTable: Couldn't connect to Julia ERROR: REPLCompletions not defined in anonymous at no file in include at boot.jl:238 in include_from_node1 at loading.jl:114 in include at boot.jl:238 in include_from_node1 at loading.jl:114 in reload_path at loading.jl:140 in _require at loading.jl:58 in require at loading.jl:43 in include at boot.jl:238 in include_from_node1 at loading.jl:114 in process_options at client.jl:303 in _start at client.jl:389 at /home/diego/.julia/v0.2/Jewel/src/completions.jl:106 at /home/diego/.julia/v0.2/Jewel/src/Jewel.jl:9 at /opt/LightTable/plugins/Jewel/jl/init.jl:20 I have cloned the repositories Jewel, Jupiter-LT and June-LT from the sources and put them into the folder /opt/LightTable/plugins/ where it is supposed they should be.
[julia-users] Julia with LightTable
I have got the following error whenever I try to run a Julia Script with the editor LightTable: Couldn't connect to Julia ERROR: REPLCompletions not defined in anonymous at no file in include at boot.jl:238 in include_from_node1 at loading.jl:114 in include at boot.jl:238 in include_from_node1 at loading.jl:114 in reload_path at loading.jl:140 in _require at loading.jl:58 in require at loading.jl:43 in include at boot.jl:238 in include_from_node1 at loading.jl:114 in process_options at client.jl:303 in _start at client.jl:389 at /home/diego/.julia/v0.2/Jewel/src/completions.jl:106 at /home/diego/.julia/v0.2/Jewel/src/Jewel.jl:9 at /opt/LightTable/plugins/Jewel/jl/init.jl:20 I have cloned the repositories Jewel, Jupiter-LT and June-LT from the sources and put them into the folder /opt/LightTable/plugins/ where it is supposed they should be.
Re: [julia-users] Re: Julia with LightTable
Thank you @Joshua. That's what I got (I have followed the instructions of
the one-more-minute repo).
;; User behaviors
;; -
;; Behaviors are stored as a set of diffs that are merged together
;; to create the final set of functionality that makes up Light Table. You
can
;; modify these diffs to either add or subtract functionality.
;;
;; Behaviors are added to tags, objects with those tags then automatically
gain
;; whatever logic the behavior imparts. To see a list of user-level
behaviors,
;; start typing a word related to the functionality you want in between the
square
;; brackets (e.g. theme).
{:+ {
;; The app tag is kind of like global scope. You assign behaviors that
affect
;; all of Light Table here
:app [(:lt.objs.style/set-skin dark)]
;; The editor tag is applied to all editors
:editor [:lt.objs.editor/no-wrap
(:lt.objs.style/set-theme june)]
;; Here we can add behaviors to just clojure editors
:editor.clojure [(:lt.plugins.clojure/print-length 1000)]}
;; You can use the subtract key to remove behavior that may get added by
;; another diff
:- {:app [(:lt.objs.langs.julia/julia-path /usr/bin/julia)]}}
2014-07-20 19:11 GMT-05:00 Joshua Job nanite1...@gmail.com:
Can you post the contents of your user behaviors file? You can get to it
via ctrl+space and then typing user behaviors, you should see an option
to edit them. You have to specify the path to julia there, or have it on
your path. More details can be found at
https://github.com/one-more-minute/Jupiter-LT/wiki/Installing-%26-Upgrading
On Sunday, July 20, 2014 4:12:23 PM UTC-7, Diego Tapias wrote:
I have got the following error whenever I try to run a Julia Script with
the editor LightTable:
Couldn't connect to Julia
ERROR: REPLCompletions not defined
in anonymous at no file
in include at boot.jl:238
in include_from_node1 at loading.jl:114
in include at boot.jl:238
in include_from_node1 at loading.jl:114
in reload_path at loading.jl:140
in _require at loading.jl:58
in require at loading.jl:43
in include at boot.jl:238
in include_from_node1 at loading.jl:114
in process_options at client.jl:303
in _start at client.jl:389
at /home/diego/.julia/v0.2/Jewel/src/completions.jl:106
at /home/diego/.julia/v0.2/Jewel/src/Jewel.jl:9
at /opt/LightTable/plugins/Jewel/jl/init.jl:20
I have cloned the repositories Jewel, Jupiter-LT and June-LT from the
sources and put them into the folder /opt/LightTable/plugins/ where it is
supposed they should be.
