Thank you Mauro. If I understand correctly, this means that in SharedArrays
I cannot use immutable types whose fields contain arrays. Is that right?
Thanks a lot,
Alex
On Friday, October 14, 2016 at 1:57:42 AM UTC-5, Mauro wrote:
>
> On Fri, 2016-10-14 at 00:02, Alexandros Fakos &l
Hi,
Is there a way to create a shared array of a user defined composite type? I
want to parallelize using pmap() on a function f() which has as arguments
user defined composite types.
Thanks,
Alex
Hi,
I am trying to run julia in parallel on EC2 AWS. I use the starcluster
package to create a cluster of instances.
The problem is that the instances have already installed the 0.3.0
prerelease.
I log in the starcluster master node and use the instructions
from
thank you all for your helpful suggestions!
alex
On Wednesday, September 7, 2016 at 7:00:00 PM UTC-5, Alexandros Fakos wrote:
>
> Hi,
>
> a=rand(10,2)
> b=rand(10)
> sort!(b) modifies b
> but sort!(a[:,1]) does not modify the first column of matrix a
>
> why is that? D
Hi,
a=rand(10,2)
b=rand(10)
sort!(b) modifies b
but sort!(a[:,1]) does not modify the first column of matrix a
why is that? Does this mean that i cannot write functions that modify their
arguments and apply it to columns of matrices?
Is trying to modify columns of matrices bad programming
Thanks Toivo,
Best,
Alex
On Friday, May 8, 2015 at 4:55:38 AM UTC-4, Toivo Henningsson wrote:
You can also use whichever order you want if you create the new instance
with just new() in the constructor and then fill in all the fields that you
want just after.
If I don't want to leave fields uninitialized what is the easiest and most
correct way to initialize them? Put them all zero with an inner constructor?
Thanks a lot,
Alex
On Thursday, May 7, 2015 at 12:56:35 PM UTC-4, Alexandros Fakos wrote:
Andrew,
I found your suggestion very helpful
, then whenever you are actually using the
type (e.g. not in the constructor) you (most commonly) refer to fields by
name so the order in which they were declared doesn't matter.
On Thursday, May 7, 2015 at 2:04:36 PM UTC-4, Alexandros Fakos wrote:
If I don't want to leave fields uninitialized what
Thank you all so much! All your comments were really helpful !
Best,
Alex
On Thursday, May 7, 2015 at 5:52:39 AM UTC-4, Tim Holy wrote:
See also
http://docs.julialang.org/en/release-0.3/manual/faq/#how-do-abstract-or-ambiguous-fields-in-types-interact-with-the-compiler
--Tim
On
Andrew,
I found your suggestion very helpful. However, it seems complicated to
place uninitialized fields last. Why is this? The field have names and when
calling *new() *you are using these names.
For example:
*julia type foo*
* a :: Int64*
* b :: Int64*
* function foo()*
*
Hi,
Suppose I have
type dat
a :: Array{Float64,1}
b :: Float64
end
and variable *data *of type *dat*
is there a function that prints out the fields of *data* with some
information about each field?
Thanks a lot,
Alex
)
fieldnames(data)
fieldnames(dat)
fieldtype(data, :a)
Best,
Simon
Am Mittwoch, 6. Mai 2015 16:27:24 UTC+2 schrieb Alexandros Fakos:
Hi,
Suppose I have
type dat
a :: Array{Float64,1}
b :: Float64
end
and variable *data *of type *dat*
is there a function that prints out the fields
Hi,
Reading the Julia style guide I see avoid writing overly-specific types
http://julia.readthedocs.org/en/latest/manual/style-guide/#avoid-writing-overly-specific-types
*The main reason I use composite types is in order to aggregate variables
and avoid variable name conflicts (the same
Great! now it works. Thanks a lot,
Alex
On Wednesday, May 6, 2015 at 11:07:02 AM UTC-4, Simon Danisch wrote:
Ah yeah it was renamed in 0.4.
Its just names(...) in 0.3...
Am Mittwoch, 6. Mai 2015 16:27:24 UTC+2 schrieb Alexandros Fakos:
Hi,
Suppose I have
type dat
a :: Array
Hi,
z is a variable in the workspace
Ideally I would like to define variable x for the optimization problem like:
@defVar(m, x[ 1 : length(z) ] = z )
which gives the error
ERROR: `Variable` has no method matching Variable(::Model,
::Array{Float64,1}, ::Float64, ::Symbol, ::ASCIIString,
:23:45 PM UTC-4, Alexandros Fakos wrote:
Hi,
z is a variable in the workspace
Ideally I would like to define variable x for the optimization problem
like:
@defVar(m, x[ 1 : length(z) ] = z )
which gives the error
ERROR: `Variable` has no method matching Variable(::Model,
::Array
be faster because it does not end up allocating any memory.
--Tim
On Thursday, April 30, 2015 02:05:37 PM Alexandros Fakos wrote:
Thanks a lot. countmap returns a dictionary but I would prefer an array.
How can I do that?
Thank you
On Thursday, April 30, 2015 at 4:41:43 PM UTC-4
Hi,
Is there a way to get a table of frequencies of the unique values in an
array in Julia?
Something like matlab's tabulate
Thanks a lot,
Alex
Hi,
Why the following commands give different results?
julia broadcast(.==,[1.0],[0.0,1.0])
2-element Array{Float64,1}:
0.0
1.0
julia repmat([1.0],2,1).==[0.0,1.0]
2x1 BitArray{2}:
false
true
How can I use broadcast for array comparisons (with a bit array as output)?
Thanks,
Alex
Thanks a lot. countmap returns a dictionary but I would prefer an array.
How can I do that?
Thank you
On Thursday, April 30, 2015 at 4:41:43 PM UTC-4, Johan Sigfrids wrote:
countmap in the StatsBase.jl package does this.
On Thursday, April 30, 2015 at 11:11:37 PM UTC+3, Alexandros Fakos
BitArray{1}:
false
true
On Thu, Apr 30, 2015 at 2:50 PM, Alexandros Fakos alexand...@gmail.com
javascript: wrote:
Hi,
Why the following commands give different results?
julia broadcast(.==,[1.0],[0.0,1.0])
2-element Array{Float64,1}:
0.0
1.0
julia repmat([1.0],2,1).==[0.0,1.0]
2x1
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