I'd like to know how to create an array of array...
On Wednesday, March 18, 2015 at 2:03:48 AM UTC+1, Andreas Noack wrote:
new_array = vcat(data...)
2015-03-17 20:59 GMT-04:00 Christopher Fisher fish...@miamioh.edu
javascript::
Hi all-
pmap outputs the results as an array of arrays
Thanks, Isaiah. I see there's already an issue for this at
https://github.com/jakebolewski/JuliaParser.jl/issues/4.
It has caused a lot of frustration. See #9118. I think the easiest right
now is
for p in procs()
@spawnat p blas_set_num_threads(k)
end
2015-03-17 23:19 GMT-04:00 Sheehan Olver dlfivefi...@gmail.com:
Hi,
I've created the following to test the performance of parallel processing
on our
Hi Tim,
Indeed, ChainedVectors is an excellent start. It implements the desired
functionality but purely for vectors. What I am looking for could be called
ChainedMatrices.
Thanks for the tip.
Best Regards,
Jan
Dňa utorok, 17. marca 2015 11:49:55 UTC+1 Tim Holy napísal(-a):
Not currently,
Hi
I want to fill an array based on a condition - eg
a = []
z = [1,2,3,4]
for i = 1:length(z)
if i 2
continue
end
end
so, I would now like to see the values 1 2 in my array a
Regards
julia a = [i for i=filter(x-x3,z)]
2-element Array{Any,1}:
1
2
On Wednesday, March 18, 2015 at 8:31:57 PM UTC+9, pip7...@gmail.com wrote:
Hi
I want to fill an array based on a condition - eg
a = []
z = [1,2,3,4]
for i = 1:length(z)
if i 2
continue
end
end
so, I
Thank you for the link. However, I am familiar with interpolation. What I
don't understand is how you change `test2` in order to use it. Because
there's no quote directly in that macro, Julia will complain about using
'$' in a non-quoted expression.
On Wednesday, March 18, 2015 at 8:37:25 AM
If I do something simple like:
macro test()
:(parsefloat(3.1459))
end
@test()
# 3.1459
everything works as expected. However, if I try this instead:
macro test2(ex)
ex
end
@test2(:(parsefloat(3.1459)))
# :(parsefloat(3.1459))
Not what I expected, but it makes sense what's happening:
After some thought, I realized that the easiest way to unquote is to reach
inside the Expr and pull out what is needed. If I do a dump of `ex` I get:
Expr
head: Symbol quote
args: Array(Any,(1,))
1: Expr
head: Symbol call
args: Array(Any,(2,))
1: Symbol parsefloat
I don't think it exists, but the point is...you could start the
ChainedMatrices package, building on the example of ChainedVectors :-).
--Tim
On Wednesday, March 18, 2015 01:39:26 AM Ján Dolinský wrote:
Hi Tim,
Indeed, ChainedVectors is an excellent start. It implements the desired
or simply
a = filter(x-x3, z)
Am Mittwoch, 18. März 2015 12:46:52 UTC+1 schrieb Konstantin Markov:
julia a = [i for i=filter(x-x3,z)]
2-element Array{Any,1}:
1
2
On Wednesday, March 18, 2015 at 8:31:57 PM UTC+9, pip7...@gmail.com wrote:
Hi
I want to fill an array based on a
See
http://docs.julialang.org/en/release-0.3/manual/metaprogramming/#interpolation
On Mar 18, 2015 8:08 AM, Abe Schneider abe.schnei...@gmail.com wrote:
If I do something simple like:
macro test()
:(parsefloat(3.1459))
end
@test()
# 3.1459
everything works as expected. However, if I
Unfortunately my solution only works if you pass in an expression directly.
If you try something like this:
val = :(parsefloat(3.1459))
@test2(val)
It will fail, since `val` is a symbol. Any other ideas?
The reason I'm trying to solve the problem in the first place is that I
have semantic
You mean as a literal?
Any[[1,2], [4,5,6]]
will give you:
2-element Array{Any,1}:
[1,2]
[4,5,6]
Or when you want to create that array of array programmatically:
julia [ones(2) for i in 1:2]
2-element Array{Array{Float64,1},1}:
[1.0,1.0]
[1.0,1.0]
Am Mittwoch, 18. März 2015
You can achieve this with filter:
http://docs.julialang.org/en/release-0.3/stdlib/collections/?highlight=filter#Base.filter
Am Mittwoch, 18. März 2015 12:31:57 UTC+1 schrieb pip7...@gmail.com:
Hi
I want to fill an array based on a condition - eg
a = []
z = [1,2,3,4]
for i = 1:length(z)
If you want to try to fix this, I recommend some reading:
http://docs.julialang.org/en/latest/manual/modules/
and start tweaking the source code at places corresponding to those error
messages.
Best,
--Tim
On Tuesday, March 17, 2015 03:42:27 PM J Luis wrote:
Unfortunately none of those make a
On Saturday, 14 March 2015 13:06:26 UTC, John wrote:
My main use cases involve operations that I want to parallelize over the
last dimension of an array.
I think this is a nice straightforward case, and something that a lot of
other vector math libraries do (e.g. I believe that Intel's MKL
Thanks everybody - got it!
Regards
On Wednesday, 18 March 2015 12:04:48 UTC, René Donner wrote:
or simply
a = filter(x-x3, z)
Am Mittwoch, 18. März 2015 12:46:52 UTC+1 schrieb Konstantin Markov:
julia a = [i for i=filter(x-x3,z)]
2-element Array{Any,1}:
1
2
On Wednesday, March
I am not sure what you mean - are you expecting a different behavior than
this? Both z and a are containing what they should.
julia z = [1,2,3,4]
4-element Array{Int64,1}:
1
2
3
4
julia a = filter(x-x3, z)
2-element Array{Int64,1}:
1
2
julia z
4-element Array{Int64,1}:
1
2
3
4
julia
Sorry, doing to many things at same time and didn't realize that the
Graphics not defined was an easy to fix issue. But now I'm getting
different ones that I wont be able to fix. Besides many warning of the type
Warning: New definition
Ok I'll give it a shot!
Though in my context I can't see a good reason that k is not just auto
evaluated first...
Sent from my iPad
On 18 Mar 2015, at 8:29 pm, Andreas Noack andreasnoackjen...@gmail.com
wrote:
It has caused a lot of frustration. See #9118. I think the easiest right now
One thing I forgot to ask is what if I wan to keep the array as it is
and then add to it ...if I run a = filter(x-x3, z) ... it overwrites the
array.
Regards
On Wednesday, 18 March 2015 14:04:45 UTC, pip7...@gmail.com wrote:
Thanks everybody - got it!
Regards
On Wednesday, 18 March
Apropos? https://www.youtube.com/watch?v=-5wpm-gesOY
On Saturday, March 14, 2015 at 7:28:23 AM UTC-7, Stefan Karpinski wrote:
There are no leap seconds in universal time. There are leap seconds in UTC
which bridges terrestrial time (SI seconds) with universal time (day = 1
earth rotation;
Where are you working on atomics?
On Tuesday, March 17, 2015 at 3:21:39 PM UTC-4, Kiran Pamnany wrote:
The threading model is loop parallelism--OpenMP-like parallel blocks and
for loops with static scheduling only (for now). There are three forms,
demonstrated in test/threads.jl. I'm
Thanks all for your input, I realize now this is still somewhat of a gray
area. What I ended up doing was just adding a couple convert methods, and a
promotion rule. It's a relatively simple type, so that was sufficient for
my purposes. The tip to use a parametric type for Arrays was
Trying to plot a Matrix with a single nonzero element in Gadfly using
*using Gadflya = zeros(Float64, 10,10);a[5,5] = 1;spy(a)*
The result is shown in the attached figure. How can I convince Gadfly to
show me also the zero values, in order to see the whole array, not just one
element?
To
Task stealing parallelism is an increasingly common use case and easy to
program. e.g. Cilk, Grand Central Dispatch,
On Thursday, March 12, 2015 at 11:52:37 PM UTC-4, Viral Shah wrote:
I am looking to put together a set of use cases for our multi-threading
capabilities - mainly to push
I've compiled a separate set of functions with another LLVM-based toolchain
(in this case Intel's SPMD compiler, ispc). If I have it emit LLVM byte
code (i.e. as a .bc file), is it possible to link that LLVM code directly
into a Julia session? I can compile the library into a dynamic library,
On a somewhat related note: if you really require non-integer indices, you
can always try NamedArrays:
using NamedArrays
m = NamedArray(rand(4), ([1//1, 1//2, 1//3, 1//4],), (weird,))
m[1//1]
m[1//2] == m[2//4]
m[1//4] == m[4]
---david
On Monday, March 16, 2015 at 8:50:13 AM UTC+1, Mauro
+1 to Mike's suggestion. I've looked into incorporating his auto-complete
functionality into Sublime-IJulia, but the lag/locking up is a deal killer.
On Wed, Mar 18, 2015 at 4:35 PM, Mike Innes mike.j.in...@gmail.com wrote:
In eval clients like Juno autocomplete locks up while evaluating, so
A few days ago, I ran a short introduction to Julia talk and tutorial for
the Institute of Astronomy at the University of Cambridge. The audience
consisted mostly of other students, with a few post-docs. Astronomers as a
group use a wide range of programming tools, from Fortran through to
In eval clients like Juno autocomplete locks up while evaluating, so that's
something I'm looking forward to solving with some thready goodness. Not
quite GUI as such but close.
On 18 Mar 2015 18:12, Sebastian Good sebast...@palladiumconsulting.com
wrote:
Task stealing parallelism is an
writing a code snippet like
val = :(parsefloat(3.1459))
@test2(val)
is perhaps a great way to confuse yourself, although it is a common mistake.
the problem is that it makes it seem like the two arguments execute in
sequence, whereas the macro expansion pass actually runs prior to the code
Thanks for the report, and the notebooks. Nice to see some other
astronomers using (or at least hearing about) Julia.
- Kyle
Before I re-invent the wheel, is there something similar to Maple's
plot[conformal] for conformal plotting of a complex function in Julia?
Here is the relevant Maple help page:
http://www.maplesoft.com/support/help/Maple/view.aspx?path=plots%2fconformal
If not, what is the best/good starting
Thanks for checking. I seem to be able to trivially reproduce on linux too.
Issue filed: https://github.com/JuliaLang/julia/issues/10570
On Sun, Mar 15, 2015 at 11:06 PM J Luis jmfl...@gmail.com wrote:
The changes referred in
Start with Base.llvmcall. It is not documented, yet, but there are some
examples in the tests:
https://github.com/JuliaLang/julia/blob/master/test/llvmcall.jl
The codegen part is in src/ccall.cpp.
On Wed, Mar 18, 2015 at 2:30 PM, Sebastian Good
sebast...@palladiumconsulting.com wrote:
I've
Here's 50 lines that implement the bulk of the functionality. Might be
worth just throwing this in Base since it's so simple. (this is 0.4
compatible, you'll want to do just `using Dates` for 0.3)
using Base.Dates
immutable Time
value::Millisecond
end
MS(x) = Millisecond(x)
value(x::Time)
Presumably that branch needs to make use of Compat.
--Tim
On Wednesday, March 18, 2015 08:26:24 AM J Luis wrote:
Sorry, doing to many things at same time and didn't realize that the
Graphics not defined was an easy to fix issue. But now I'm getting
different ones that I wont be able to fix.
Hi, all:
Does any one tried to build julia with intel compiler, I tried, but
fails in the middle.
any ideas where I may find help on this matter? IRC or developer mailing
list?
best regards
wen
quite interesting:
http://www.sciencedaily.com/releases/2015/03/150312082830.htm
enjoy !!!
cdm
Hi
I guess what I'm trying to say is that if array a started life as
[11,12,13,14] - then if we use filter(x-x3, z) which returns 1,2 - I
would like 1,2 added to array a resulting in a array being .
[11,12,13,14,1,2] or [1,2,11,12,13,14]
Regards
On Wednesday, March 18, 2015 at 3:05:54 PM
I'd be interested to know a case where confusion could arise.
---david
On Monday, March 16, 2015 at 4:15:22 PM UTC+1, Patrick O'Leary wrote:
On Monday, March 16, 2015 at 10:09:40 AM UTC-5, David van Leeuwen wrote:
Related to this question: what if you want to use the name of a base
julia z = [1,2,3,4]
...
julia a = filter(x-x3, z)
...
julia c = [a;z]
6-element Array{Int64,1}:
1
2
1
2
3
4
I think you will find most of what you need in
http://docs.julialang.org/en/release-0.3/manual/arrays/
Am 18.03.2015 um 20:55 schrieb pgs philsiv...@googlemail.com:
Hi
I guess
I'd be interested to know a case where confusion could arise.
I remember that I got confused by a python library using the bit-shift
operator for writing to files (C++ style). Got me confused for sure.
I think it makes sense that typing, say, ?map should give you a help
text which applies to
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