Nice! The quality is much better than last years videos.
On Thursday, August 13, 2015 at 8:22:09 PM UTC+3, Viral Shah wrote:
Folks,
I am happy to announce that the videos are almost all ready, and I will
start posting them in batches. I am starting with Jeff’s talk on our
Youtube
Hi John,
Thanks for writing and for your suggestion. Sorry if my email was not
clear.
I am working with global discrete maps at resolution varying from 0.5x0.5
to 2.5x2.5 degrees per grid point. Those maps are discrete and represent
the presence or absence of suitable habitat, so many of the
Here are the next batch of videos. There is a JuliaCon 2015 channel now:
https://www.youtube.com/playlist?list=PLP8iPy9hna6Sdx4soiGrSefrmOPdUWixM
This batch includes:
David Sanders: Validated numerics in Julia
Patrick Sanan: Using Julia on a Cray Supercomputer
Keno Fischer: Shaving the Yak
Tim, does ImageCmap works with latest Julia? I cloned the latest Julia
repository (0.4), added the Color, Images, and ImageView package and run
this code (adapted from
https://groups.google.com/forum/#!searchin/julia-users/%22ImageCmap%22/julia-users/T-i1JdwB4zk/f7FEsh4En4oJ
but using PBM
Maybe you could use a ragged array, which would only store the half of
the matrix you need: https://bitbucket.org/maurow/ragged.jl
On Fri, 2015-08-14 at 01:03, Charles Novaes de Santana
charles.sant...@gmail.com wrote:
Dear all,
Thank you very much for your help and suggestions! I have
*@Tim Holy*: Many thanks for the reference, I completely missed ImageCmap.
I'll give it a try.
*@Steven G. Johnson*: Yes, in my everyday work I am actually using my
Healpix.jl library together with PyPlot. However, I am looking for a
solution which does not require potential Healpix.jl users
Andrei Zh
I'm confused. Have you actually tried?
julia io = IOBuffer()
IOBuffer(data=UInt8[...], readable=true, writable=true, seekable=true,
append=false, size=0, maxsize=Inf, ptr=1, mark=-1)
julia foo(x) = x + 1
foo (generic function with 1 method)
julia serialize(io, foo)
julia
Charles:
Thanks for your response. I understand now that your application is
ecological, but the mathematical nature and the discretization of your
system is still unclear. You might consider a 'lazy' approach, in which you
compute a distance when you need it, rather than computing them all
On Friday, August 14, 2015, Charles Novaes de Santana
charles.sant...@gmail.com wrote:
1) to use only the subset of suitable habitats to build the matrix of
distances (and then to use sparse matrix as suggested by Stefan)
Distance matrices are not usually sparse – since the farthest apart
Go ahead and submit the bug report. Also let me know what ImageView does with
it. (I never use colormap images myself, so this is less well-tested.)
A pull-request fixing the problem would be even better, of course!
--Tim
On Friday, August 14, 2015 06:54:19 AM Maurizio Tomasi wrote:
Tim, does
Hello colleague,
i tend to agree, there is something wrong with Images.jl. I get
lobi@orange4:~/juliarepo$ ../julia04/julia
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_)| Documentation: http://docs.julialang.org
_ _ _| |_ __ _
Hi Jake,
your example works because you don't leave Julia session. `foo` is defined
in this session, so the the pair of module name and function name is enough
to get function object. If you save serialized function (or just retype it
byte by byte) , it won't work. Here's an example:
We saw problems trying to load on very recent master the other day.
I was able to fix it using the steps outlined here:
https://github.com/QuantEcon/QuantEcon.jl/issues/64#issuecomment-130149602.
Can you give that a try and report back?
On Friday, August 14, 2015 at 3:34:51 PM UTC-4, Nils
The issue was that I wasn't storing the Spline2D directly, but rather a
function which wrapped log10 calls around the arguments. Pulling these out
into my type's call method and directly storing the Spline inside it works
perfectly. Thanks! I guess the lesson here is just store the data inside
Is nbagg backend supported by ijulia? If so, can anyone give me an
example? I tried to change the backend to nbagg but it doesn't really
show any interactive plot in notebooks.
ref.
https://github.com/stevengj/PyPlot.jl/issues/137
https://github.com/stevengj/PyCall.jl/issues/89
Thank you,
Hi!
ForwardDiff.jl https://github.com/JuliaDiff/ForwardDiff.jl, a Julia
package for performing automatic differentiation, has just been updated and
is now much less buggy, much more performant, and much more comprehensively
tested.
An additional goal of the update was to provide a more
It's a JIT copy of a julia function named new. The last time this error
popped up, it was due to an error in the free_page function logic to
compute whether it was safe to free the current page (since PPC using large
pages). One place to check then is to ensure the invalid pointer hadn't
More information: this isn't specific to the Images packages.
Running Pkg.update() gives the same error.
Any ideas?
On Thursday, August 13, 2015 at 5:22:08 PM UTC-4, Daniel Fenn wrote:
Hi,
I just downloaded the Juno IDE to give Julia a try. I'm going through the
initial tutorial, and when
if you want to do this, yes:
julia a=Dict(A=1, B=2)
Dict{ASCIIString,Int64} with 2 entries:
B = 2
A = 1
julia around_a=Dict(A=3, B=a)
Dict{ASCIIString,Any} with 2 entries:
B = Dict(B=2,A=1)
A = 3
julia if (around_a[B][A] == 1)
delete!(around_a[B],A);
end
julia
Thanks. I was specifically asking about `filter!` but your code works well
and it's only occupying 4 lines of code, so it should suffice.
Much appreciated
On Friday, 14 August 2015 12:18:29 UTC-4, Jeffrey Sarnoff wrote:
if you want to do this, yes:
julia a=Dict(A=1, B=2)
It should be pretty safe to start using 0.4 since we're about to enter a
feature freeze and release process. The main issue is that many packages
may not yet work on 0.4, so that part will be a bit rough.
On Fri, Aug 14, 2015 at 2:17 PM, Simon Kornblith si...@simonster.com
wrote:
ArrayViews
ArrayViews doesn't support indexing with ranges, vectors, etc. on Julia
0.3, although this should work on Julia 0.4. (Also on 0.4, SubArrays
created with sub/slice should be equally fast as ArrayViews, and both
should be faster than on 0.3.) On 0.3 you need to write an explicit loop to
set
Fantastic, thanks Jarrett!
Cheers,
David
From: julia-users@googlegroups.com [mailto:julia-users@googlegroups.com] On
Behalf Of Miles Lubin
Sent: Friday, August 14, 2015 3:35 PM
To: julia-users julia-users@googlegroups.com
Cc: miles.lu...@gmail.com
Subject: [julia-users] Re: ANN: Major
Dates.Hour, .. Dates.Millisecond what to put their parens around DateTime
entities only.
Dates.Year. .. Dates.Day are more open-minded, enparenning DateTime or Date
entities.
take 'em for a spin like this:
Dates.Hour(time_series[2]) - Dates.Hour(time_series[1])
Here's to a Good Evening
Ben, much as I would like there to be a second kind of typealias, *typealiased
-- *that let us work with the renanamings wiithout risk to the objects of
the type originally aliased -- this is not on the radar now. It is hard to
peel off enough to form the CIGAR when the role of typealias is to
Go into the /Git folder in your Julia installation and run git-bash.bat.
Can you git clone anything from github from there? Either over git:// or
https:// ?
On Friday, August 14, 2015 at 9:49:05 AM UTC-7, Daniel Fenn wrote:
More information: this isn't specific to the Images packages.
Would that work? The variable to be printed isn't fed in as the second
option?
On Wednesday, August 12, 2015 at 1:34:16 AM UTC+1, colint...@gmail.com
wrote:
Does the following work?
function Base.show(io::IO, ::Type{CIGARString})
#your code here
end
On Tuesday, 11 August 2015
Trying to get the number of hours between these two dates (ideally x hours
and y minutes), but can't figure out how to convert the duration variable
into hours. The bottom line currently errors
timein = 2015/8/13 10:19:50
timein2 = 2015/8/14 13:12:34
time_series[1] = DateTime(timein,/mm/dd
Thanks Jarrett!
This work is the product of a Julia Summer of Code project. Please kick the
tires, we're planning letting the new code sit on master for a bit before
tagging a new release. Users of Julia 0.3 will be stuck on the old API,
since the code makes extensive use the generated
I tried this too, to override the method for Array{CIGAR, 1} but it still
does not work:
function Base.show(io::IO, cigarstr::Array{CIGAR, 1})
write(io, convert(String, cigarstr))
end
On Tuesday, August 11, 2015 at 9:22:09 AM UTC+1, Mauro wrote:
I think you cannot create a show method
Since those issues are still open, it is unlikely that there is support.
On Fri, Aug 14, 2015 at 4:05 PM, smokingbear hori...@gmail.com wrote:
Is nbagg backend supported by ijulia? If so, can anyone give me an
example? I tried to change the backend to nbagg but it doesn't really
show any
One more batch posted:
1. Jacob Quinn: Composable streams for data transfer and processing -
http://t.co/DPuN42F3Qu
2. Tanmay Mohapatra: Interfacing Julia with Complex systems using Protocol
Buffers - http://t.co/Ddxj60KL7g
3. Eric Davies: Towards A Consistent Database Interface -
I took 'em for a spin, but your approach doesn't have legs if the datetimes
in time_series come from different days. I.e. Dates.Hour just returns the
hour in that day.
I can imagine a long-winded solution where the relevant time units are
extracted and differenced, but I was hoping for
+1 for your clean-up (understated and well-articulated)
On Friday, August 14, 2015 at 4:20:09 PM UTC-4, Jarrett Revels wrote:
Hi!
ForwardDiff.jl https://github.com/JuliaDiff/ForwardDiff.jl, a Julia
package for performing automatic differentiation, has just been updated and
is now much
I have a dict containing both key+value pairs, and key+[array of dict]
pairs.
Can I use filter! to remove the entire parent dict if condition in child is
met?
i.e.
If measurements[uniqueentrykey][studyid] == bad study then remove
measurements[uniqueentrykey]
Thanks
You could create a phony 2-dimensional array that computes the distances
on the fly… but you won't be able to pass this matrix to, e.g., BLAS.
immutable DistanceMatrix : AbstractArray{Float64, 2}
locs::Array{Float64, 2} # a 2xN or 3xN matrix containing the location
coordinates
end
bigmemory is presumably the same thing as mmap_array.
--Tim
On Friday, August 14, 2015 01:03:10 AM Charles Novaes de Santana wrote:
Dear all,
Thank you very much for your help and suggestions! I have learned a lot
from you. Indeed, I want to use this matrix and not only to read and store
If you define the function with @everywhere, it will be defined on all existing
workers. Likewise, `using MyPackage` loads the package on all workers.
--Tim
On Thursday, August 13, 2015 03:10:54 PM Andrei Zh wrote:
Ok, after going through serialization code, it's clear that default
Yes, but once again, I'm not using Julia workers, but instead completely
independent Julia processes, running on different machines and ruled by
Spark, not by Julia's ClusterManager. I.e. workflow looks like this:
1. Julia process 1 starts JVM and connects to Spark master node.
2. Julia
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