Re: [julia-users] Plots.jl: layout of several plots, with more than one curve per plot

till think it does not make sense what I say (why not?), it doesn't >>> hurt to document the limitations... >>> >>> Cheers, >>> >>> Ferran. >>> >>> >>> On Monday, November 14, 2016 at 2:50:13 PM UTC+1, Tom Breloff wrote: >>>&

Re: [julia-users] Plots.jl: layout of several plots, with more than one curve per plot

and including that instead. I'll open a bug report at Plots for this behaviour. Scott On Monday, 14 November 2016 11:59:45 UTC, Scott T wrote: > > The layout has space for 6 plots but the final plot command only supplies > 5. When I run your example (on the development branch of Plo

Re: [julia-users] Plots.jl: layout of several plots, with more than one curve per plot

The layout has space for 6 plots but the final plot command only supplies 5. When I run your example (on the development branch of Plots) I get an error because of that. Have you tried the dev branch? `Pkg.checkout("Plots, "dev")`, restart julia and re-run it. Scott On Monday, 14 November

Re: [julia-users] Re: Plots.jl: layout of several plots, with more than one curve per plot

Oh! >> Scott you're very kind to take your time helping me with the notebook... >> thanks a lot. I'll take a careful look and report back if I find problems. >> Best, >> Ferran. >> >> >> On Tuesday, November 8, 2016 at 1:22:20 PM UTC+1, Scott T wrote: >>> >&g

[julia-users] Re: Plots.jl: layout of several plots, with more than one curve per plot

You can break down the plot command into chunks and then call plot on those chunks to build up a plot from several pieces. In this way, you can make individual plots with multiple series. Then you can combine them according to your desired layout. This isn't the best place to post a full

[julia-users] Re: Does Julia support Integer literal suffix like 1234L or 1234U

You could take advantage of implicit multiplication to define this yourself: julia> type ShortLiteral end; const S = ShortLiteral(); julia> type LongLiteral end; const L = LongLiteral(); julia> Base.:*(x::Integer, ::ShortLiteral) = Int32(x) julia> Base.:*(x::Integer, ::LongLiteral) = Int64(x)

[julia-users] Re: how to change background color from black and the Pkg.add() reply lines from BLUE to a readable foreground color

Hi Rich, If I recall correctly, Pkg prints info messages. To change the color of those you need to set an environment variable. You can do this by adding a line to .juliarc.jl (note the leading dot) in your home directory: ENV["JULIA_INFO_COLOR"] = :cyan or whatever other color you want to

[julia-users] Re: Problem with Plots/Compat on RC4

Oh and just to be a little clearer, that's ~/.julia/lib (the .julia folder in your home directory) and not the .../julia/lib folder in Applications. On Monday, 12 September 2016 12:12:08 UTC+1, Scott T wrote: > > Try removing .julia/lib (the precompile cache). I had this same

[julia-users] Re: Problem with Plots/Compat on RC4

Try removing .julia/lib (the precompile cache). I had this same issue and this appears to have fixed it. On Monday, 12 September 2016 12:06:48 UTC+1, DNF wrote: > > After updating to RC4 (binary download) plotting completely stopped > working for me. > > julia> plot(rand(5)) > [Plots.jl]

[julia-users] Re: Annoying WARNING: Method definition in interactive use

I've started putting those functions into a temporary module because replacing the module produces just one short warning. Right after the end of that module I will put any analysis code that I want to re-run on each reload, or sometimes I will write a main() function and call that. Basically

Re: [julia-users] { } vector syntax is discontinued?

And again at lines 30 and 40 in that file. On Tuesday, 23 August 2016 14:11:44 UTC+1, Scott T wrote: > > Looks like like 5 uses the old syntax: > > flag = Sundials.CVodeSetUserData(mem, {f,r,d,p}) > > Try: > > flag = Sundials.CVodeSetUserData(mem, [f,r,d,p]) > > >

Re: [julia-users] { } vector syntax is discontinued?

Looks like like 5 uses the old syntax: flag = Sundials.CVodeSetUserData(mem, {f,r,d,p}) Try: flag = Sundials.CVodeSetUserData(mem, [f,r,d,p]) On Tuesday, 23 August 2016 14:06:24 UTC+1, Simon Frost wrote: > > Thanks for the info; it still isn't clear to me how the (generic) call to > this

[julia-users] Re: Linking Julia to different Anaconda virtual environments

Hi John, Because PyCall links directly to the Python libraries, you have to rebuild it every time you want to use a different version of Python. That includes switching virtual environments. You do this by setting the environment variable PYTHON (ENV["PYTHON"] from within Julia) to the

[julia-users] Re: ANN: Optim v0.6

I keep overlooking these badges too because I'm used to thinking of them as "miscellaneous things that I don't need to care about unless I'm a developer". I like it when package authors put a link to the documentation (or at least a landing page from where I can find documentation) in the URL

[julia-users] Re: Incredibly elusive julia 0.5 bug - new undefined behaviour?

See #18015 <https://github.com/JuliaLang/julia/issues/18015> On Friday, 12 August 2016 20:59:20 UTC+1, Scott T wrote: > > I've got a really REALLY elusive bug which as far as I can tell boils down > to this line of code: > > shuffleFields!(A, getb(A), getc(A), geta(A))

Re: [julia-users] Re: Incredibly elusive julia 0.5 bug - new undefined behaviour?

Would be good to get a reduced > test case. > > On Fri, Aug 12, 2016 at 7:56 PM, Scott T <sgseab...@gmail.com > > wrote: > >> I get the same as you - I haven't been able to produce a concise example >> of this behaviour yet. The actual bug is ne

[julia-users] Re: Incredibly elusive julia 0.5 bug - new undefined behaviour?

with that (or to let you know that I'm stupid and missed something obvious). On Friday, 12 August 2016 23:52:32 UTC+1, Steven G. Johnson wrote: > > > > On Friday, August 12, 2016 at 3:59:20 PM UTC-4, Scott T wrote: >> >> The thing is that this line behaves differentl

[julia-users] Re: Incredibly elusive julia 0.5 bug - new undefined behaviour?

That should read something more like > shuffleFields!(A, newa, newb, newc) = (A.a = newa; A.b = newb; A.c = newc) > not that it makes a difference

[julia-users] Incredibly elusive julia 0.5 bug - new undefined behaviour?

I've got a really REALLY elusive bug which as far as I can tell boils down to this line of code: shuffleFields!(A, getb(A), getc(A), geta(A)) where the intent is to reassign A.a, A.b, A.c: shuffleFields!(A, a, b, c) = (A.a = b; A.b = c; A.c = a) and where geta(A)= A.a # etc The thing is

Re: [julia-users] How do I write `import Base.!` in julia 0.5?

> > and it will be valid for both 0.4/0.5. > > https://github.com/JuliaLang/Compat.jl > > -Jacob > > > On Mon, Aug 8, 2016 at 9:04 AM, Scott T <sgseab...@gmail.com > > wrote: > >> Great, thanks. I found that >> import Base: ! >> also works and i

Re: [julia-users] How do I write `import Base.!` in julia 0.5?

Great, thanks. I found that import Base: ! also works and is also compatible with 0.4/0.5. On Monday, 8 August 2016 15:26:46 UTC+1, Kevin Squire wrote: > > Try > > import Base.(!) > > Cheers, > Kevin > > On Monday, August 8, 2016, Scott T <sgseab...@gmail

[julia-users] How do I write `import Base.!` in julia 0.5?

In 0.4 I would write: import Base.! The syntax Base.:! is not yet supported. In 0.5: julia> import Base.:! ERROR: syntax: invalid "import" statement: expected identifier julia> import Base.! ERROR: syntax: invalid operator ".!" What am I missing here?

[julia-users] Re: Trouble with PyPlot

For anyone else coming to this thread, looks like the problem is with Compat and will be fixed by https://github.com/JuliaLang/Compat.jl/pull/211. In the meantime you can pin Compat to v0.7.18 to work around this. Pkg.pin("Compat", v"0.7.18”) On

[julia-users] How is broadcast supposed to work?

Noticed this when playing around with the new f.(x) syntax, which I assumed would work like map. julia> map(sin, 3) 0.1411200080598672 julia> map(sin, [3]) 1-element Array{Float64,1}: 0.14112 Map works like I'm used to: number goes to number, array goes to array. julia> sin.(3) # same as

[julia-users] Re: error in ijulia

Cedric fixed this recently in a PyCall update - do a Pkg.update() and that should fix it. On Monday, 16 May 2016 10:27:48 UTC+1, Henri Girard wrote: > > Hi, > If I use this plot in terminal julia it works fine, but in IJulia it does > an error. > Any help > Thanks > HG > > using Plots >

[julia-users] Re: Julia Utopia: Share your tips and tricks to efficient coding in Julia

I've been writing papers that have scientific results powered by Julia, and I want every part of the paper to be reproducible if necessary. So I'm finding myself writing a lot of Jupyter notebooks to tinker around with things, make or read data files, make and save plots (as svg, png and pdf),

[julia-users] Re: Beginner question: contour-style plot in gadfly of density data?

Two key questions - is your data gridded? And do you plan to sample from these density values later, or are you just wanting to plot it and see what it looks like? If your data is gridded (your ~1 lines cover every combination of x and y values in the range that you are interested in),

[julia-users] Re: What are the best ways to define scenarios?

I have heard good things about Parameters.jl , which lets you make types representing individual models or scenarios that have default values. You would want to do something like using Parameters @with_kw immutable Scenario par1::Float64 =

Re: [julia-users] Re: Arrow Keys when debugging

Try setting ENV["EDITOR"] = "atom" in .juliarc. This works for me on a linux system but you may need a different command name to launch atom on mac or windows. On Tuesday, 26 April 2016 12:16:36 UTC+1, chobb...@gmail.com wrote: > > I know @which, but not @edit. Thanks! > > Btw, I have a hard

[julia-users] Re: ExcelReaders: specific range

ike to use this: > dfData = readxl(DataFrame, file0, "Control!Investments", header=false) > > When I run the first one, it works. But with the second one, it gives this > error: "type Void has no field captures" > > Thanks! > El domingo, 17 de abril de 2

[julia-users] Re: ExcelReaders: specific range

The readxl() function takes a sheet and range as its second argument like this example from the documentation: data = readxl("Filename.xlsx", "Sheet1!A1:C4") Is this what you meant? Or by "previously defined in the excel file" do you have some other use in mind? On Sunday, 17 April 2016

Re: [julia-users] Using operator 'for' in loops with removing elements.

In general it's not a good idea to remove things from an array as you are looping over it. The while loop approach will be very slow for large arrays, especially if you need to remove a lot of items. To expand on what Milan said, it looks like you're currently using a condition to specify

Re: [julia-users] Using operator 'for' in loops with removing elements.

Yes they do! Here's the timing difference on my machine (setting A = rand(100) and using filter! to remove items <= 0.5) julia 0.4.3 anon func:0.032877 seconds (1000.00 k allocations: 15.259 MB) named func: 0.022765 seconds (1000.00 k allocations: 15.259 MB) julia 0.5-dev anon

[julia-users] Julia version of a crossword game notebook

I saw this python notebook by Peter Norvig. It is from a lesson in which the students develop a program to find highest-scoring plays in games like Scrabble and Words with Friends. The notebook is a refactoring of the code

[julia-users] Re: Probability Paradoxes and Converting Python Code to Julia

I saw the original a while ago and thought it was really cool. I liked your translation! On Tuesday, 1 December 2015 10:50:26 UTC, Mohammed El-Beltagy wrote: > > Recently I came across a beautiful notebook by Peter Norvig about > Probability Paradoxes. > It was done in Python and I decided to

[julia-users] Re: Julia Workshop at the ANZ Statistics Conference 2015, Christchurch

Hi Arin, Ex-Cantabrian here (physics department). It's cool to see people there getting into Julia! How was the turnout? Cheers, Scott On Friday, 27 November 2015 08:31:56 UTC, Arin Basu wrote: > > Hi All, > > I ran a workshop today at the Australia New Zealand Statistics Conference. > The

[julia-users] Re: (Yet another) tutorial

Great tutorial, Daan - I think you are onto the right idea focusing on dispatch and typing. I liked your example of where value types could be useful, as well as stressing that the only reason to add types to arguments is to take advantage of dispatch. Here at Cambridge the mathematics

[julia-users] Re: (Yet another) tutorial

annotate everything was definitely a load off my mind when programming. So I like that you highlighted that. On Thursday, 5 November 2015 13:52:25 UTC, Scott T wrote: > > Great tutorial, Daan - I think you are onto the right idea focusing on > dispatch and typing. I liked your example

[julia-users] Re: PyPlot not working on 0.4.0

My reply disappeared - I may have sent it directly to jda instead of the group. Anyway, try julia> Pkg.checkout("PyCall") julia> Pkg.update() since the instructions above are outdated and will give you an old version of PyCall. Then let us know what error you're getting. On Wednesday, 4

Re: [julia-users] A grateful scientist

(Oh and Yakir, your work sounds like one of the coolest interdisciplinary mixes I could possibly think of.) On Monday, 26 October 2015 13:11:47 UTC, Scott T wrote: > > I'll add my voice to say thanks as well! I made the switch from Python to > Julia for some astrophysical models

Re: [julia-users] A grateful scientist

to the usefulness of types and how to program for speed without throwing me in the deep end. I look forward to the day I can introduce people to it without having to preface the introduction with "You probably won't care about what I'm saying until the language and packages are more stable, but..."

Re: [julia-users] Re: Documentation of operators

There's already a table of punctuation which is pretty handy, though not complete (it doesn't contain .. or ->), so adding those and other symbols would be a great little project! Scott On Thursday, 24 September 2015 12:07:54 UTC+1,

[julia-users] Re: Juno + Julia 0.4

Have you tried the project-manager package? It has some support for defining and switching between projects. Scott On Tuesday, 15 September 2015 14:06:03 UTC+1, David Higgins wrote: > > The julia-client package for Atom is from the Juno project. It requires > Julia 0.4 so I haven't tried it

[julia-users] Re: Updating a single output line in IJulia

The package ProgressMeter.jl defines a "printover" function which does this nicely in both the REPL and IJulia. Looks like it just goes to the beginning of the line, prints,

Re: [julia-users] Convert an Array{Any,2} to an AbstractVector in Julia

, the macro itself needs to be compiled. Only the second and subsequent @time runs of a given function represent the running time of the function itself - this is why it's recommended to ignore the first set of timing results when you are measuring these things. Scott T On Thursday, 10 September 2015 22

Re: [julia-users] Re: ANN: JuliaDiff -- differentiation tools in Julia

Commenting here because I'd be interested in hearing any more thoughts people have. I'm working on a similar problem at the moment, but for directional derivatives of 2D data. My data has hardly any noise though, which makes doing finite-differencing along one axis a decent choice - but I'd

Re: [julia-users] What's the best way to cache a function generated from a type instance?

the type, don't try and make it like OO by putting a function inside too. Scott On Friday, 14 August 2015 02:02:03 UTC+1, Scott T wrote: Thanks Kyle - looks like the error I was getting from JLD was unrelated, as I just managed to save a Spline2D type with it. I'll try your approach. Nice

Re: [julia-users] What's the best way to cache a function generated from a type instance?

/JuliaLang/JLD.jl/blob/master/doc/jld.md#custom-serialization --Tim On Thursday, August 13, 2015 12:37:59 PM Scott T wrote: Hi everyone, I'm wondering what the most Julian way to handle the following situation is. I know it can't be complicated, but am not quite sure how to go

Re: [julia-users] What's the best way to cache a function generated from a type instance?

collected into a Vector). — Kyle ​ On Thu, Aug 13, 2015 at 3:41 PM, Scott T sgseab...@gmail.com javascript: wrote: That's a really nice solution, thanks. Scott On Thursday, 13 August 2015 22:19:35 UTC+1, Tim Holy wrote: There are several possible solutions, but one is to use the new

[julia-users] What's the best way to cache a function generated from a type instance?

Hi everyone, I'm wondering what the most Julian way to handle the following situation is. I know it can't be complicated, but am not quite sure how to go about it. I'm doing some simple interpolation using Dierckx.jl https://github.com/kbarbary/Dierckx.jl, getting densities of materials from

[julia-users] Re: julia 'stable' from git

pull git checkout release-0.4 make should work... Any idea of when 0.4 will be out as stable (I know it is out as development)? Cheers F On Monday, 10 August 2015 16:50:12 UTC+3, Scott T wrote: In fact, I imagine there will be a release-0.4 branch instead of a tag, so you

[julia-users] Re: julia 'stable' from git

Hi Federico, I think that what you need is as simple as doing something like git fetch --tags git pull git checkout v0.4.0 make from within the git repo once version 0.4.0 is out. It's not quite magical, but you will probably want to push the button on the upgrade yourself instead of having

[julia-users] Re: julia 'stable' from git

can do it without deleting everything and starting again). There will definitely be instructions available! Scott On Monday, 10 August 2015 14:44:07 UTC+1, Scott T wrote: Hi Federico, I think that what you need is as simple as doing something like git fetch --tags git pull git

Re: [julia-users] using Gadfly (using a package) only if needed

Looks like @lazymod turns the module load into a function call (in lowercase), so you need to do: if dodraw gadfly().plot(...) gadfly().plot(...) ... where the first gadfly() call will load Gadfly and be slow, while the others will be fast. I suppose you could turn that into if

[julia-users] Re: Supertypes in function arguments

I've seen a discussion on this somewhere... here it is: https://github.com/JuliaLang/julia/issues/6984, and there's more discussion at https://groups.google.com/forum/#!topic/julia-users/alavN8tRdyI No built-in solution so far from what I can see, although following the first post there, you

[julia-users] Re: PyPlot not working on 0.4.0

Hi Linus, This is due to a change in Julia master https://github.com/JuliaLang/julia/commit/4220ecebf107997ec7d44bd2a6236f7898e83473 which altered the way timers work. It's broken PyCall and therefore PyPlot in this particular case. There are pending pull requests on PyCall which should fix

[julia-users] Re: PyPlot not working on 0.4.0

Oh and of course you could always revert Julia to an earlier version, like the parent commit (29d8c650) https://github.com/JuliaLang/julia/commit/29d8c650010b5ee2a491ff6a56ae66a65d8d8788. Using the nightlies, it's pretty much guaranteed that things will break occasionally. Cheers, Scott On

[julia-users] Re: Is anything like pipeR in julia?

Lazy.jl https://github.com/one-more-minute/Lazy.jl also has piping macros. Your example would be written as @ x f(y) but there's also @ for filling in the *last* slot, or @as for composing more complicated operations like @as _ x begin f(_, 1) g(2, _) end which is the same as g(2,

[julia-users] Re: map without creating a new array

Not sue if this is exactly what you want, but you can achieve this with `map!` by making `add_one!` return the modified MyType: julia type MyType; x::Int; end julia function add_one!(mt::MyType) mt.x += 1 return mt end add_one! (generic function with 1 method)

[julia-users] Re: [Slightly OT] Creating JuliaCon presentation slides as a Jupyter notebook

for customizing some of the settings (theme, transition, and so on): http://www.damian.oquanta.info/posts/change-the-ipython-slides-defaults-with-an-ipython-config-file.html Scott T On Thursday, 4 June 2015 15:49:15 UTC+1, Douglas Bates wrote: The JuliaCon2015 organizers have suggested preparing

[julia-users] Re: IJulia best practices when defining types

with the idea of running incremental analyses, since you need to make a new ResultSet instead of just adding results to an old one, so others may be able to offer better solutions on this if that's what you need. Cheers, Scott T On Monday, 1 June 2015 17:54:11 UTC+1, Adam Labadorf wrote: Hi, I am using

[julia-users] Re: Making fast higher-order functions/types that use interpolation

, in order to keep everything type-stable and performant while letting `SomeFunction` be agnostic of how the heat capacity is calculated. // T On Friday, May 22, 2015 at 7:39:26 PM UTC+2, Scott T wrote: Second code block should have call(rsf::RunsSomeFunction, x) = rsf.f(x) instead

[julia-users] Re: Making fast higher-order functions/types that use interpolation

so much about speed. On Friday, 22 May 2015 18:34:27 UTC+1, Scott T wrote: I'm aware of the fact that higher-order functions will currently be slow, and you can get around this by using a package like FastAnonymous or by using custom types: function SomeFunction(value, par) # do stuff

[julia-users] Making fast higher-order functions/types that use interpolation

I'm aware of the fact that higher-order functions will currently be slow, and you can get around this by using a package like FastAnonymous or by using custom types: function SomeFunction(value, par) # do stuff with value based on parameter end type RunsSomeFunction par1 end

[julia-users] Re: How to optimize the collect function?

), or update to a newer version of 0.4-dev. My timings are 5 ms in Python 2.7.8 and 2.7 ms in the latest Julia 0.4. Cheers, Scott T On Thursday, 30 April 2015 23:43:24 UTC+1, Ali Rezaee wrote: Dear all, I have a ported all my project from python to Julia. However, there is one part of my code

[julia-users] Re: Jupyter Notebook julia integration

Was he using the PyCall package https://github.com/stevengj/PyCall.jl by any chance? You can call Python functions from within Julia by using it. Cheers, Scott On Sunday, 22 March 2015 23:44:55 UTC, James Fairbanks wrote: Hello All, I recently saw Fernando Perez use a Jupyter notebook that

[julia-users] Experiences from running a small Julia tutorial + online notebooks

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

[julia-users] Best way to find the directory a package is in

Hi all, I've been playing around with trying to install Julia and some basic packages system-wide to run a workshop for our department in a couple of weeks time. Mostly it's working well, and I'm really excited about seeing what people think! I ran into the problem that Pkg.dir(PackageName),

[julia-users] Re: Best way to find the directory a package is in

Sorry, that should be dirname(@__FILE__) Scott On Tuesday, 24 February 2015 14:36:58 UTC, Scott T wrote: dirpath(@__FILE__)

[julia-users] Re: Best way to find the directory a package is in

to be smarter overall, but this at least lets me fix the issue with Nettle. Scott On Tuesday, 24 February 2015 13:44:45 UTC, Scott T wrote: Hi all, I've been playing around with trying to install Julia and some basic packages system-wide to run a workshop for our department in a couple

[julia-users] Re: Matlab keyboard command in Julia?

Hi Vinay, You should look at Debug.jl https://github.com/toivoh/Debug.jl, which lets you insert breakpoints into your code. Cheers, Scott On Saturday, 21 February 2015 16:39:37 UTC, vinay wrote: Hi, Just a newbie question: Does Julia have something equivalent to Matlab's keyboard