The solution you listed yourself, as well as mapslices, both work fine. But if by “recommended” what you really mean is “high-performance”, then the best answer is: don’t iterate over rows. The problem is that since arrays are stored in column-major order, for anything other than a small matrix you’ll end up with a poor … Read more
There is a new answer to this question since the release of Julia v0.7 and v1.0 that is slightly different. I just had to do this so I figured I’d post my findings here. As already explained in other solutions, it is necessary to include the relevant script which defines the module. However, since the … Read more
In the words of Bill Clinton, “It depends upon what the meaning of the word ‘is’ is”. Well, ok, not really, but it does depend on what the meaning of the word “homoiconic” is. This term is sufficiently controversial that we no longer say that Julia is homoiconic – so you can decide for yourself whether … Read more
Ah, more web-searching led to the right answer. The keyword ARGS::Array{ASCIIString} holds command line arguments Here is a simple example # cli.jl print(map(x->string(x, x), ARGS)) # Concatenate each arg onto itself and print Lets test it at the command line: $ julia cli.jl a b c aa bb cc
2022 version Just wanted to share what I tried to update Julia on my windows and it worked just fine. I added UpdateJulia package and using that (using UpdateJulia) I updated the Julia version on my PC by update_julia(): Open Julia Package manager and type in the following commands one by one, ]add UpdateJulia using … Read more
When in doubt, read the documentation… https://docs.julialang.org/en/v1/manual/types/#Composite-Types-1 Long story short: struct MyType a::Int64 b::Float64 end x = MyType(3, 4) x.a EDIT: Methods are defined outside the type definition, e.g. function double(x::MyType) x.a *= 2 end Methods do not live inside the type, as they would do in C++ or Python, for example. This allows one … Read more
The basis of this problem is the confluence of reloading a module, but not being able to redefine a thing in the module Main (see the documentation here) — that is at least until the new function workspace() was made available on July 13 2014. Recent versions of the 0.3 pre-release should have it. Before … Read more
Keno’s answer is spot on, but maybe I can give a little more detail on what’s going on and what we’re planning to do about it. Currently there is only an LLVM JIT mode: There’s a very trivial interpreter for some simple top-level statements. All other code is jitted into machine code before execution. The … Read more
An Update: whos() … is not working either in iJulia or at the command prompt in Julia-1.0.0. It is working in Julia-0.6.4, though. On the other hand, varinfo() ….prints information about the exported global variables in a module. For Example, julia-1.0> varinfo() name size summary –––––––––––––––– ––––––––––– ––––––––––––––––––––––––––––––– Base Module Core Module InteractiveUtils 154.271 KiB … Read more