axlelang/axle

Axle Domain Specific Language for Scientific Cloud Computing and Visualization

Andreas Pauley

@apauley

It seems that spire's algebra has been split out into a different project, with the intent that more projects can include just algebra as a dependency: https://github.com/non/algebra

Spire has not yet moved over (although they say it is the intent), but Cats are already using it

The one difference I noticed is that the function names of the monoid typeclass changed from id and op to empty and combine.

Does axle have any plans to use the new algebra?

Adam Pingel

@adampingel

Yes, I hope to. Although I will likely wait until spire adopts it as well

Adam Pingel

@adampingel

@apauley I'd love to hear more about your impressions. I'll be giving a talk about Axle on Friday at Scala by the Bay in Oakland. I imagine that video will be up shortly afterward.

Andreas Pauley

@apauley

@adampingel Sure, I hope to play with quanta soon. Interested to see how the types interact and if it is a model that can be used for currency-aware amounts.

Adam Pingel

@adampingel

Cool. Let me know how that goes.

Btw, 0.2.0 is now on Sonatype -- the first actual release in 10 months

The .conversionGraph calls recently got a little more verbose. I may provide an alias soon to shorten that up again

Adam Pingel

@adampingel

just merged a PR with converterGraphK2 aliases

will update docs after next release. tests have already been updated to use them

axle lang

@axlelang

0.2.1 was just released to sonatype

the primary change is various aliases to make working with graphs of kind 2 (such as those in jung) less verbose
and also some 'common' aliases for other higher-kinded types

axle lang

@axlelang

a new set of docs is being pushed to axle-lang.org that reflect this

axle lang

@axlelang

and now I notice that the angles on the directed graph arrows need to be multiplied by -1
I'll prepare 0.2.2 tomorrow-ish with that fix

axle lang

@axlelang

the fix is in 0.2.2-SNAPSHOT. I'll hold off on releasing 0.2.2 until more changes accrue. axle-lang.org has been published against 0.2.2-SNAPSHOT

Adam Pingel

@adampingel

@/all 0.2.2 was just published

will be working on docs for a while before creating any new functionality

Adam Pingel

@adampingel

0.2.2 contained pythagorean means and their “moving” counterparts (including moving generalized f-mean)

I expect most of the rest of this year to be occupied by improvements to test coverage and documentation

axle lang

@axlelang

0.2.4 is released!

and check out the new tut-powered site

axle lang

@axlelang

0.2.6 is released!

Adam Pingel

@adampingel

Checking to make sure I’ve got the story straight on cats-kernel’s Eq and Order interop with Spire’s versions

Then I’ll be updating docs

and then 0.2.7 will come out

Adam Pingel

@adampingel

name := "demo"
scalaVersion := "2.11.8"
libraryDependencies += "org.spire-math" %% "spire" % "0.13.0"
libraryDependencies += "org.typelevel" %% "cats-kernel" % "0.8.1"

[error] /Users/pingel/github.com/adampingel/eq_order/src/main/scala/demo/package.scala:12: could not find implicit value for evidence parameter of type cats.kernel.Order[spire.math.Rational]
[error]   foo(x)
[error]      ^
[error] one error found

Adam Pingel

@adampingel

Axle 0.2.7 is on Sonatype!

docs will be udpated over the next week

I think the spire/algebra/cats-kernel/axle interop (for Eq and Order) is still not totally mature, but I have workarounds in place for now and a question posed in the spire room

Adam Pingel

@adampingel

Got Axle passing tests locally against Spire 0.13.1-SNAPSHOT axlelang/axle#156

I’ll publish as soon as that version of Spire is published

Adam Pingel

@adampingel

I may also support scala 2.12 in Axle 0.2.8

Adam Pingel

@adampingel

0.2.8 is out

http://axle-lang.org/road_map/

Fix SVG rendering of negative values in BarChart
Make more arguments to vis components functions (colorOf, labelOf, diameterOf)
Depend on Spire 0.14.0 (which depends on Typelevel Algebra)

Adam Pingel

@adampingel

0.3.1 is out

http://axle-lang.org/release_notes/

improvements to BarChart*

Adam Pingel

@adampingel

0.3.2 is out

some LinearAlgebra cleanup

and change to PixelatedColoredArea

http://axle-lang.org/tutorial/images/logMap.png

^ that used to be a ScatterPlot, which did not work well

that’s a 4k x 4k image. takes maybe 20-30 seconds to render

Adam Pingel

@adampingel

in axle 0.3.3 (just released) bar chart bars can be links. see http://axle-lang.org/tutorial/bar_charts/

Adam Pingel

@adampingel

quiet

Adam Pingel

@adampingel

hello again. I'm spending a little more time with Axle again lately. Hoping to get another release out again in the coming months

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