[julia-users] Re: How can I install a julia package in an assigned folder?

thanks 在 2015年12月27日星期日 UTC+8下午5:44:10，Tony Kelman写道： > > Set ENV["JULIA_PKGDIR"] > > On Saturday, December 26, 2015 at 7:02:28 PM UTC-8, Yao Lu wrote: >> >> I have installed julia in F:\julia\, and I run "Pkg.add(***)", then Julia >> installed my package in C:\User\***\.julia\. But I would like

[julia-users] Re: How can I install a julia package in an assigned folder?

Set ENV["JULIA_PKGDIR"] On Saturday, December 26, 2015 at 7:02:28 PM UTC-8, Yao Lu wrote: > > I have installed julia in F:\julia\, and I run "Pkg.add(***)", then Julia > installed my package in C:\User\***\.julia\. But I would like to install it > in F:\julia\. How could I achieve that? >

Re: [julia-users] Moore foundation grant.

Briefly, 1. Robust dataframes is a key thrust area for this work. At this point the work is exploratory, but we all are expecting this being one of the first areas to see rapid progress on. Julia’s db support has improved a lot, independently, and will keep getting better. As soon as there is

[julia-users] Re: Ccalling structure const char *

I want to ccall a file which is relative to the packages dir, but const path = joinpath(@__FILE__,"..","bin","lib.so") ccall((:fn, path),...) fails with the same error as above first argument not a pointer or valid constant expression How can I fix this? On Monday, November 30, 2015 at

Re: [julia-users] Moore foundation grant.

I've thought a few times about reimplementing Stan in Julia. I wonder how much of Stan's codebase is about parsing/code-generation (which would be drastically simpler in Julia) versus fine-tuning their NUTS sampler. And how much of that work about automatic differentiation/code generation could

[julia-users] Re: Why does the subtypes method produce an array rather than a set?

You can just do: @assert subtypes(Type) == [DataType, TypeConstructor, Union] I just tested this: julia> @time for i in 1:1000 @assert subtypes(Type) == [DataType, TypeConstructor, Union] end 3.025415 seconds (767.00 k allocations: 224.075 MB, 0.49% gc time) El sábado, 26

[julia-users] Does any one have Raspberry Pi 2 Julia binaries?

has anyone successfully built Julia for Raspberry Pi 2? I understand that it's able to build now. If anyone has been able to do this ...could you share your binary? I'm building it right now, but it seems it's going to take ages, and I have yet to see it fail or not! I want to build a

[julia-users] Re: Why does the subtypes method produce an array rather than a set?

I just tested and the output seems to be deterministically ordered: julia> x = map(string, subtypes(Any)); julia> y = sort!(map(string, subtypes(Any))); julia> x == y true El sábado, 26 de diciembre de 2015, 12:52:51 (UTC-6), Ray Toal escribió: > > I noticed that > > *julia>

Re: [julia-users] Nongeneric functions

In Julia 0.4 anonymous functions are non-generic (in 0.5 they will, however, be generic), so that's one way to create a non-generic function. Aside from anonymous functions, the only non-generic are the builtins, defined in C code using the add_builtin_func function: $ ack add_builtin_func src

Re: [julia-users] Nongeneric functions

We could use something like this: julia> isbuiltin(x) = in(symbol(x), builtins()) isbuiltin (generic function with 1 method) julia> isbuiltin(is) true We could also change this functions documentation, something like this: help?> is search: ind2sub ind2sub! @ip_str include_string @int128_str

Re: [julia-users] Nongeneric functions

I think this would be useful even if not exported so we can give better error messages, ie: julia> @which 1 === 1 ERROR: ArgumentError: argument is not a generic function in methods at reflection.jl:140 Ok, so it's not a generic function, then what it is? julia> @which 1 === 1 ERROR:

[julia-users] Re: passing function as arguments and avoiding unecessary allocations

Alan please don't double post the same question: https://groups.google.com/forum/#!topic/julia-users/2AoQQKVP2Do It makes it difficult to follow the thread, thanks! El domingo, 27 de diciembre de 2015, 11:21:35 (UTC-6), alan souza escribió: > > Hi. I was wondering what is the correct way to

Re: [julia-users] Nongeneric functions

I needed to ad a `convert(Vector{Symbol}, .)`, since map can't tell it's a Symbol array, why? function builtins() nams = filter(s -> isdefined(Base, s), names(Base, true, true)) objs = map(s -> Base.(s), nams) funcs = filter(x -> isa(x, Function) && isa(x.env, Symbol), objs)

[julia-users] [Gadfly] - [Possible Bug] - plotting a vector using Geom.rectbin

Hi, I'm trying the following, plot(x = [1;1], y = [1;2], color = [1;2], Geom.rectbin) but it produces an empty plot. On the other hand, both of the following do produces meaningful plots, plot(x = [1;1], y = [1;2], color = [1;2], Geom.point) plot(x = [1;2], y = [1;2], color = [1;2],

Re: [julia-users] Moore foundation grant.

Viral and Symon, Since you asked, I will write out some rough and probably excessively abstract Ideas that have been floating around in my head below. I don't have time to formally polish, so please forgive the inchoate nature of these thoughts: Yes, composability and generality are the

Re: [julia-users] Moore foundation grant.

Have you seen Simon D's viz stuff at juliacon? I believe a lot of that stuff is soon going to be ready for wider use. I am sure he will chime in further on this thread. -viral On 27 Dec 2015 11:59 pm, "Lampkld" wrote: > > Viral and Symon, > > Since you asked, I will write

Re: [julia-users] Re: Ccalling structure const char *

Le dimanche 27 décembre 2015 à 10:24 -0800, axsk a écrit : > I want to ccall a file which is relative to the packages dir, but > > const path = joinpath(@__FILE__,"..","bin","lib.so") > ccall((:fn, path),...) > > fails with the same error as above > first argument not a pointer or valid

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

Ah, I didn't think about performance. I was simply thinking that sets make more sense semantically when the order does not matter, and arrays or lists make sense when the order does matter. I thought there would be no point in using an array for unordered items, but it sounds like the point is

Re: [julia-users] Re: How to display in string?

Thanks for everybody's help. I got something working which satisfies me. Regarding Cedric's question, I am trying to compute the Feigenbaum number delta to arbitrary high precision. https://en.wikipedia.org/wiki/Feigenbaum_constants I am using a brute-force method to compute delta. The basic

Re: [julia-users] Nongeneric functions

Perhaps, but all of this is going to change fairly soon. Why is this information useful? On Sun, Dec 27, 2015 at 4:03 PM, Ismael Venegas Castelló < ismael.vc1...@gmail.com> wrote: > We could use something like this: > > julia> isbuiltin(x) = in(symbol(x), builtins()) > isbuiltin (generic

[julia-users] How to avoid extra allocations when passing a function as parameter

Hi. I was wondering what is the correct way to pass a function as argument preserving the return type information of this function For instance in the following code: *function sinc{T<:Real}(x::T)return T((x != zero(T)

[julia-users] passing function as arguments and avoiding unecessary allocations

Hi. I was wondering what is the correct way to pass a function as argument preserving the return type information For instance in the following code: *function sinc{T<:Real}(x::T)return T((x != zero(T) )?(sin(pi*x)/(pi*x)):(one(T)))endfunction

[julia-users] Nongeneric functions

In the REPL *julia> **methods(is)* *ERROR: ArgumentError: argument is not a generic function* * in methods at reflection.jl:180* and ditto for isa and typeof and perhaps others. Two quick questions: - Is it possible for the programmer to create nongeneric functions in Julia? - If

Re: [julia-users] Nongeneric functions

So `is` is a builtin anonymous function? julia> Base.function_name(is) :anonymous Stefan perhaps we should add a builtins function to inference.jl? Indeed it's not obvious at all! julia> function builtins() nams = filter(s -> isdefined(Base, s), names(Base, true, true))

[julia-users] passing function as arguments and avoiding unecessary allocations

It seems adding typecheck is 2x improvements in my laptop. y = zeros(T, n) for i in eachindex(X) y[i] = F(X[i])::T end return y

Re: [julia-users] Re: How to display in string?

Hey Stuart, I used to do research on whether the Maunder Minimum was caused by the sun being pushed out of its chaotic basin of attraction, so this was interesting to me! I don't think you need code generation. Here is the fastest code that I could come up with, I'm sure that others might make

[julia-users] Re: How to avoid extra allocations when passing a function as parameter

For calcF your variables: Variables: X::Array{Float64,1} F::F n::Int64 y::Array{Float64,1} #s76::Int64 i::Int64 ##dims#7321::Tuple{Int64} and return value: return y::Array{Float64,1} end::Array{Float64,1} Are correctly inferred if I use floats so it seems fine. But if I use

Re: [julia-users] Does any one have Raspberry Pi 2 Julia binaries?

Thank you Milan I will test this ASAP :D El domingo, 27 de diciembre de 2015, 16:46:45 (UTC-6), Milan Bouchet-Valat escribió: > > Le dimanche 27 décembre 2015 à 11:47 -0800, Ismael Venegas Castelló a > écrit : > > has anyone successfully built Julia for Raspberry Pi 2? I understand > > that

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

Kevin I tested in my Win laptop with 0.3.11, 0.4.2, 0.4, 0.5+ also the same versions in julia box, and the output is deterministically sorted, It seems this has been the way it works for some time now, then I looked at the code and it’s indeed sorted (should have done that first! :P ): -

Re: [julia-users] Does any one have Raspberry Pi 2 Julia binaries?

I just found this Rpi Emulator (I don't want to hinder the build process in my Rpi2 rigth now), but it dosen't say which Rpi it's emulating. * http://sourceforge.net/projects/rpiqemuwindows El domingo, 27 de diciembre de 2015, 17:05:05 (UTC-6), Ismael Venegas Castelló escribió: > > Thank you

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

Ray, thanks for the clarification--makes sense. In fact, for introspection code like 'subtypes', performance is probably the wrong argument--it's unlikely that it occurs in performance-critical code. I think it's really that arrays are just simpler. One aesthetic change I could imagine would be

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

Thanks for looking and posting (I've been on my phone). I think I might have written that code, actually. ;-) Cheers! Kevin On Sunday, December 27, 2015, Ismael VC wrote: > Kevin I tested in my Win laptop with 0.3.11, 0.4.2, 0.4, 0.5+ also the > same versions in

Re: [julia-users] Does any one have Raspberry Pi 2 Julia binaries?

Le dimanche 27 décembre 2015 à 11:47 -0800, Ismael Venegas Castelló a écrit : > has anyone successfully built Julia for Raspberry Pi 2? I understand > that it's able to build now. If anyone has been able to do this > ...could you share your binary? I'm building it right now, but it > seems it's

[julia-users] Re: [Gadfly] - [Possible Bug] - plotting a vector using Geom.rectbin

I think Gadfly is treating your x-values as continuous values for some reason. This should do what you want plot(x = [1;2], y = [1;2], color = [1;2], Geom.rectbin, Scale.x_discrete) On Sunday, December 27, 2015 at 7:49:28 AM UTC-8, Uri Patish wrote: > > Hi, > > I'm trying the following, > >

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

I'm sure the order won't ever change, but I'd still find it odd if the documentation of subtypes were to say "Returns a list of subtypes, sorted by the name of the subtype" because, well, what about namespaces? What about all sorts of Unicode collation definitions that would have to be a part

Re: [julia-users] Why does the subtypes method produce an array rather than a set?

Hi Ray, You're probably the first person to make this observation. I can see your point, and I don't really have a strong argument or opinion, really--the main reason it's sorted is probably because it looks nicer--at least if I did write that code, that would have been my reasoning. If you're

[julia-users] Using MATLAB error

I installed MATLAB packages. "Pkg.add("MATLAB") ENV["MATLAB_HOME"]="F:\\MATLAB\\R2015b\\bin" using MATLAB x=[1,2,3]" The codes above are OK. When I type "@mxput x", it shows "ERROR: UndefVarError: @mput not defined". What's wrong?

[julia-users] Re: Moore foundation grant.

What is the functionality you fancy the most from ggplot and ggvis? Am Mittwoch, 11. November 2015 02:24:27 UTC+1 schrieb Lampkld: > > Congratulations on the exciting news! > > I have played around with Julia A bit and love the language , But Found > Its Lacking Some robust stats/ml/data