Ok, this is to report my failure as well. I managed to build the MEX with
VS. For that I had to create an import lib from libjulia.dll, which I did
both with MinGW and VS (2013) but Matlab fails with
mexjulia
Invalid MEX-file 'C:\SVN\mironeWC64\mexjulia.mexw64': A dynamic link
library (DLL)
To also clarify on why @sprintf behaves this way, the reason is that it
compiles down to specialised code for printing e.g. a float, followed by a
double, etc., whatever you specify. If you use a variable like `fmt` the
actual value is only available long after the code has already been
compiled.
Some of your questions may be answered by
https://software.intel.com/en-us/articles/vectorization-in-julia
--Tim
On Tuesday, December 02, 2014 11:20:12 PM ivo welch wrote:
dear julia experts: my question is not important, but I am curious: there
seem to be a bewildering array of float vector
Dear Steven,
Thanks for your help.
Definitively Plot3D works on:
fig = plt.figure()
ax = gca(projection=3d)
X = linspace(-5, 5, 300)
Y = linspace(-5, 5, 300)
R = linspace(-2pi, 2pi, 300)
X, Y = (X, Y)
R = sqrt(X.^2 + Y.^2)
Z = sin(R)
surf = plot_surface(X, Y, Z, rstride=1, cstride=1,
Ok, thank you! I will try to use again .
2014-12-02 13:08 GMT-03:00 Andrei faithlessfri...@gmail.com:
@Phelipe: yes, but as Tim noticed earlier, you need to get latest dev
version and use qualified name to import it:
julia Pkg.checkout(Images)
...
julia using Images
julia
Hi, I am asking a simple question because I can't find the answer in the
document.
I want to have this: q[ ] is an array whose elements are vectors.
For example, q[1] = [1,2,3]; q[2] = [2,3,4]
Thank you.
You mean like this?
q = Array(Array{Int}, 2) # 2 - space for two arrays... otherwise use 0 and
push!(q, [1,2,3])
q[1] = [1,2,3];q[2]=[2,3,4]
this works as well:
Array{Int}[[1,2,3], [2,3,4]]
Am Mittwoch, 3. Dezember 2014 14:32:39 UTC+1 schrieb Staro Pickle:
Hi, I am asking a simple question
Or p = Vector{Int}[[1,2,3],[4,5,6]]
On 3 December 2014 at 13:41, Simon Danisch sdani...@gmail.com wrote:
You mean like this?
q = Array(Array{Int}, 2) # 2 - space for two arrays... otherwise use 0
and push!(q, [1,2,3])
q[1] = [1,2,3];q[2]=[2,3,4]
this works as well:
Array{Int}[[1,2,3],
Hi Richard (and other participants to this thread),
Concerning Dynare: it is indeed written in MATLAB/Octave (with some parts in
C++, like the preprocessor and some optimized portions of code). Dynare
currently covers a very large range of features, and replicating all of them in
Julia would
Hi,
I've just run brew update brew upgrade on my MacBook Air with OS X
10.9.5, which resulted in julia 0.3.3 being installed. Running the
recommended test brew test -v julia results in SUCCESS for the core,
but as I have had many problems trying to get julia installed on linux (now
Just to add to John's comment on Formatting.jl: yes use it. There's this
NumFormat.jl (of yours truly) but I've since proposed to merge its entire
code into Formatting.j, subject to @lindahua's blessing. So we should have
a wealth of options to format numbers by runtime arguments.
Tony
On
I gave this answer http://stackoverflow.com/a/19784718/659248 on
StackOverflow, which I think explains it decently. However, this has caused
enough people to be confused or frustrated that it should probably be
revisited. I'm not sure what the right solution is. Note that we can't just
call C's
this stack overflow question indicates that there are two options (
http://stackoverflow.com/questions/153559/what-are-some-good-profilers-for-native-c-on-windows
)
https://software.intel.com/sites/default/files/managed/cd/92/Intel-VTune-AmplifierXE-2015-Product-Brief-072914.pdf
($900)
It has been discussed in:https://github.com/JuliaLang/julia/pull/9170
The following reproduces the surface plot example from mplot3d:
fig = figure()
X = linspace(-5, 5, 100)'
Y = linspace(-5, 5, 100)
R = sqrt(X.^2 .+ Y.^2)
Z = sin(R)
surf = plot_surface(X, Y, Z, rstride=1, cstride=1, linewidth=0,
antialiased=false, cmap=coolwarm)
zlim(-1.01,1.01)
ax = gca()
Hello everyone,
I'm trying to make a function (let's call it `return_direction`) which
takes in a Float between 0 and 2*pi, and randomly returns one of the
following lattice vectors {(0,0), (1,0), (0,1), (1,1)}, weighted in such a
way that the expectation value of `return_direction(theta)` is
Hi Jeremy,
Thanks for reporting the problem. Julia's bug reports can be filed here:
https://github.com/JuliaLang/julia/issues
I've added an issue suggesting that the URL be specified in that message, but
it would be best to open a separate issue for your test failure.
Best,
--Tim
On
(It would be great if someone were to undertake a translation of code
examples from Matplotlib to PyPlot. Ideally, create one or more IJulia
notebooks with all of the examples, and we can put them in the PyPlot
github repository and link to the nbviewer pages from the README. I'd be
happy
I found that after using Gadfly, the load funciton in JLD can not work, as
below:
julia using Gadfly
julia using HDF5,JLD
julia save(tempfile.jld,var,[1,2,3])
julia load(tempfile.jld,var)
ERROR: `convert` has no method matching convert(::Type{Int64...}, ::UInt64)
in convert at base.jl:44
in
The code can be simplified a bit further to:
X = linspace(-5, 5, 100)'
Y = linspace(-5, 5, 100)
R = sqrt(X.^2 .+ Y.^2)
Z = sin(R)
surf = plot_surface(X, Y, Z, rstride=1, cstride=1, linewidth=0,
antialiased=false, cmap=coolwarm)
zlim(-1.01,1.01)
ax = gca()
See https://github.com/timholy/HDF5.jl/issues/160
On Wed, Dec 3, 2014 at 9:51 AM, xiongji...@gmail.com wrote:
I found that after using Gadfly, the load funciton in JLD can not work, as
below:
julia using Gadfly
julia using HDF5,JLD
julia save(tempfile.jld,var,[1,2,3])
julia
I guess maybe Gadfly forgot importing base.convert but exported it in
somewhere.
On Wednesday, December 3, 2014 3:51:54 PM UTC+1, xiong...@gmail.com wrote:
I found that after using Gadfly, the load funciton in JLD can not work, as
below:
julia using Gadfly
julia using HDF5,JLD
julia
And actually this produces almost the same plot:
X = linspace(-5, 5, 100)'
Y = linspace(-5, 5, 100)
R = sqrt(X.^2 .+ Y.^2)
Z = sin(R)
surf = plot_surface(X, Y, Z, rstride=1, cstride=1, linewidth=0,
antialiased=false, cmap=coolwarm)
colorbar(surf, shrink=0.5, aspect=5)
I don't know why the
Oh, apologies, I forgot to convert the `sign` to Int64. Changing the line
in question to
return (int(sign(x))*(rand() abs(x)), int(sign(y))*(rand() abs(y)))
speeds up things to 300 nanoseconds per call.
In any case, the original question still stands: could this be improved?
On
I guess maybe some packages Gadfly used forgot importing base.convert but
exported it in somewhere.
On Wednesday, December 3, 2014 3:51:54 PM UTC+1, xiong...@gmail.com wrote:
I found that after using Gadfly, the load funciton in JLD can not work, as
below:
julia using Gadfly
julia using
Oh, apologies, I forgot to convert the `sign` to Int64. Changing the line
in question to
return (int(sign(x))*(rand() abs(x)), int(sign(y))*(rand() abs(y)))
In any case, the original question still stands: could this be improved?
Some potentially-interesting links (of which I understand very little):
http://stackoverflow.com/questions/860602/recommended-open-source-profilers#comment2363112_1137133
http://stackoverflow.com/questions/8406175/optimizing-stack-walking-performance
I can tell from this comment:
As in the issue posted by Isaiah, this is a problem with the Color package (or
interaction between Color and another package). In my case, updating Color did
not work, so I pinned it to v0.3.9.
João
On Dec 3, 2014, at 9:57 AM, xiongji...@gmail.com wrote:
I guess maybe some packages Gadfly
I think this could be done by instead of expanding into specific
(optimized) code dedicated to each argument, it instead would expand into a
tree of if statements connected to a bunch of Expr(:call,:typeof,more
args) and ? : (whatever the parse tree is for that). Essentially a
function call
I remember reading somewhere that Codebox might support Julia in the near
future. Does anybody have any comments or information about this?
Op vrijdag 28 november 2014 17:39:43 UTC+1 schreef Daniel Carrera:
Hi everyone,
Can anyone here comment or share opinions on the newer text editors --
I don't see how inlining solves this problem though – if format strings are
run-time, you can't inline anything since you don't know what to inline
until it runs, at which point it's too late.
On Wed, Dec 3, 2014 at 10:20 AM, Stefan Karpinski ste...@karpinski.org
wrote:
If Julia didn't do
That's a pretty serious bummer. I can't believe anybody puts up with this.
Should we change the default initialization
https://github.com/JuliaLang/julia/blob/b1c99af9bdeef22e0999b28388597757541e2cc7/base/profile.jl#L44
so that, on Windows, it fires every 100ms or so? And add a note to the
I have found a good notebook in https://gist.github.com/gizmaa/7214002
Yes, probably (I thought we already had). Someone would need to do some
comparison work though first.
On Wed, Dec 3, 2014 at 10:57 AM Tim Holy tim.h...@gmail.com wrote:
That's a pretty serious bummer. I can't believe anybody puts up with this.
Should we change the default initialization
Unfortunately the number of types or arguments one can encounter is
unbounded. Are you talking about the format specifiers or the arguments?
Yea, the format specifiers, poor choice of words, my bad.
Can somebody on a Windows system report back with the output of
`Profile.init()`?
--Tim
On Wednesday, December 03, 2014 04:38:01 PM Jameson Nash wrote:
Yes, probably (I thought we already had). Someone would need to do some
comparison work though first.
On Wed, Dec 3, 2014 at 10:57 AM Tim
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_)| Documentation: http://docs.julialang.org
_ _ _| |_ __ _ | Type help() for help.
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 0.3.3 (2014-11-23 20:19 UTC)
_/
over at https://www.codebox.io, it says that accounts have sudo access in
terminals on virtual machines,
so technically this can be accomplished; similar has been done at
koding.com ...
currently, codebox.io is not advertising an off the shelf Julia stack, so
it is not obvious what might be
The accuracy of windows timers is somewhat questionable.
I don't know if 5% is good enough for this purpose, but: one of our
collaborators uses (a lightly modified version of) the code below in a
real-time imaging application:
Thanks, I've posted an issue to discuss this:
https://github.com/gizmaa/Julia_Examples/issues/1
On Wednesday, December 3, 2014 11:37:20 AM UTC-5, Daniel Høegh wrote:
I have found a good notebook in https://gist.github.com/gizmaa/7214002
Thanks. Looks like that needs to be changed.
--Tim
On Wednesday, December 03, 2014 08:53:50 AM Daniel Høegh wrote:
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_)| Documentation: http://docs.julialang.org
_ _ _| |_ __ _ |
Hey Jeremy, I'm the guy you should be talking to. Can you `brew remove
openblas-julia` and then `brew install openblas-julia` and try again?
-E
On Wed, Dec 3, 2014 at 6:42 AM, Tim Holy tim.h...@gmail.com wrote:
Hi Jeremy,
Thanks for reporting the problem. Julia's bug reports can be filed
Hi,
I try to use pyplot.jl, nothing works, I need help :)
In python, I can use matplotlib with both the gtk3 and wx backends. But
Julia tells me
WARNING: No working GUI backend found for matplotlib.
when I try using PyPlot.
Calls to pygui(:gtk) and pygui(:wx) tell me that I don't have
#9423 https://github.com/JuliaLang/julia/pull/9243 should help with the
repetition of format strings issue. It occurs to me now that you can always
just write a function wrapper for `@sprintf` to solve that issue but this
might still be useful.
On Wednesday, 3 December 2014 01:40:56 UTC,
Sorry, I forgot to mention the versions: Julia 0.3, python 3.3.5,
matplotlib 1.3 on gentoo.
Might be a paths issue - check the contents of 'sys.path' when running
python directly vs. PyCall.
On Wed, Dec 3, 2014 at 2:08 PM, thr johannes.thr...@gmail.com wrote:
Sorry, I forgot to mention the versions: Julia 0.3, python 3.3.5,
matplotlib 1.3 on gentoo.
I don't think there is a problem with my .bashrc; but I use csh instead. I
don't have a problem with 0.3.2, just 0.3.3. Your suggestion for running
~/Desktop/Julia-0.3.3.app/Contents/Resources/julia/bin/julia
works. That's good enough for now. Thanks.
On Tuesday, December 2, 2014 10:49:35 AM
Yeah, probably you are running a different version of Python (or a
different Python path) in Julia than you are when you run Python
separately. (You can use the PYTHON environment variable to specify the
path of the python executable that you want Julia to use.)
On Wednesday, December 3, 2014 2:08:50 PM UTC-5, thr wrote:
Sorry, I forgot to mention the versions: Julia 0.3, python 3.3.5,
matplotlib 1.3 on gentoo.
I'm guessing that you also have python2 installed, and Julia is picking up
that instead because python==python2 in your PATH. Try
I did some more poking around with gdb, and was able to isolate one issue.
When run outside of cygwin, `uv_guess_handle` returns `UV_UNKNOWN_HANDLE`
such that `init_stdio_handle` errors out. When run inside of cygwin,
`uv_guess_handle` returns `UV_NAMED_PIPE` to no ill effect.
How can this be?
Hello,
I'm interested in using dynamic time warping and an algorithm for peak
finding in noisy data (like scipy.signal.find_peaks_cwt). I'm just
wondering if there are any Julia implementations around, otherwise I'll
probably just use PyCall for now to use existing python code.
As Stefan said above, the problem with traditional (s)printf functions is
type safety.
On Thursday, December 4, 2014 4:53:17 AM UTC+10, Mike Innes wrote:
#9423 https://github.com/JuliaLang/julia/pull/9243 should help with the
repetition of format strings issue. It occurs to me now that you
Hi,
On Tuesday, December 2, 2014 6:50:33 PM UTC+1, Ivar Nesje wrote:
It's not the obvious choice to me either, but it is in the docs
http://docs.julialang.org/en/latest/stdlib/base/#associative-collections,
and has been since I read it the first time 1.5 years ago.
I don't think is says
Hello Milan,
I just uploaded a new version of NamedArrays to github. I've reimplemented
the getindex() mess---the never ending chain of ambiguities was unworkable.
It is much cleaner now, I believe, and I've replaced the `negative index'
implementation with a simple `Not()` type for
Almost :) This gave me the right direction.
In fact, I have two pythons, but I have to explicitly set PYTHON=python2.7
if I want to see interactive graphs.
Here is what I found out about the combinations of backends and python
versions:
Backends gtk3agg, gtk3cairo, wx, wxagg just seemed to
Inside the Mongo.jl file, what is const MONGO_LIB defined as? If it's
currently libmongoc, try explicitly setting the suffix, eg const MONGO_LIB
= libmongoc-1.0
Bit of a late response, but you never know.
On Wednesday, December 3, 2014 7:28:05 PM UTC-5, thr wrote:
Backend TkAgg works with both pythons, but TkAgg doesn't seem to work with
PyPlot. This is what I set in my matplotlibrc, which seems to be ignored by
PyPlot.
Backend gtkAgg works with Python2.7 and PyPlot, but NOT with python3.
Hey Mike,
I've been used Juno for about a month, and I love it! Coding julia
interactively is awesome, exactly how I feel when I was using RStudio! Big
thanks!
Yesterday I had to regretfully upgrade my project on julia v0.4, with no
surprise that Juno doesn't seem to be working(the little
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