april
nl-covid19-data-dashboard
april | nl-covid19-data-dashboard | |
---|---|---|
52 | 46 | |
580 | 174 | |
- | -0.6% | |
7.3 | 9.1 | |
about 2 months ago | 23 days ago | |
Common Lisp | TypeScript | |
Apache License 2.0 | European Union Public License 1.2 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
april
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Thinking in an Array Language
There are attempts to combine those...
April (Array Programming Re-Imagined in Lisp)
https://github.com/phantomics/april
> operations that apply to the whole array
like MAP and REDUCE, higher order functions are not really new to Lisp. In Common Lisp they are extended to vectors.
> list languages and array languages are quite different.
There are some common things like interactive use, functional flavor, etc.
- April
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A Personal History of APL (1982)
There's also April APL: https://github.com/phantomics/april
Also the array language family seems to be stronger than ever with foss: ngn/k, BQN, uiua, and of course J but as you mentioned they're all different languages.
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The C juggernaut illustrated (2012)
I love J and APL, but April takes the cake for me[1]. APL in Lisp.
I also prefer SPARK2014 instead of Rust if I am not going to use C. I've started learning Rust a few times. SPARK2014 is easier to get going for me, and it has been used to produce high-integrity software and real-world applications for over a decade, and more if you include Ada from which it sprang[2].
[1] https://github.com/phantomics/april
[2] https://www.adacore.com/about-spark
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Erlang: The coding language that finance forgot
The one big use case was RabbitMQ in a messaging app, not HFT. I doubt Elixir even with Nx can compete with low-level HFT code. Python DL/ML code libraries are just wrappers around C too. Maybe if BeamAsm and Nx are used Elixir could be used for more numerical or not just distributed applications.
I've programmed in Python and Julia, and when I worked at an engineering (mechanical, entertainment engineering) company, Julia was great for its similarity to Matlab. I am a self-taught engineer, so I did not get pulled into Matlab in college.
Personally, I took to Erlang, so I could write plugins for Wings3D back in the early 2000s, but I never stuck with Erlang, or Wings3D (Blender3D was my choice and I even contributed to have it go opensource way back when). I like Erlang's syntax better for some reason, although Elixir's is beautiful too. I was not a Ruby programmer, and I had delved into Haskell and Prolog, so I think Erlang made more sense to me. I think Elixir has a lot more momentum behind it than Erlang, but at the root it's Erlang, so I think I'll stick with Erlang for BEAM apps. My favorite language is April[1] (APL in Lisp), and given my love of J, would be a better fit for any finance apps I might write. I am trying to convert some of the Lisp code in this book, "Professional Automated Trading: Theory and Practice" to April.
Maybe I'll write some equivalent Elixir code to compare.
[1] https://github.com/phantomics/april
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Learn Lisp the Hard Way
I'm also very curious for hear from expert lispers. I've tried to find the sweat spot where lisp would fit better than what I already know: shell for glue and file ops, R for data munging and vis, python to not reinvent things, perl/core-utils for one liners. But before I can find the niche, I get turned off by the amount of ceremony -- or maybe just how different the state and edit/evaluate loop is.
I'm holding onto some things that make common lisp look exciting and useful (static typing[0], APL DSL[1], speed [2,3,4]) and really want to get familiar with structural editing [5]
[0] https://github.com/phantomics/april - APL dsl
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The APL Programming Language Source Code (2012)
The 2 0 at the start of the APL line above controls the mirroring behavior. The second number can be set to 0 or 1 to choose which side of the image to mirror, while the 2 sets the axis along which to mirror. This will be 1 or 2 for a raster image but this function can mirror any rank of array on any axis.
April was used to teach image filtering in a programming class for middle-schoolers, you can see a summary in this video: https://vimeo.com/504928819
For more APL-driven graphics, April's repo includes an ncurses demo featuring a convolution kernel powered by ⌺, the stencil operator: https://github.com/phantomics/april/tree/master/demos/ncurse...
- I’m trying Advent of Code in APL and Common Lisp with April
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I spent the last 2 months converting APL primitives into executable NumPy
#1: Thanks to J, I was able to get in the global Top 100 in the first day of Advent of Code. I've never done this before and I'm feeling a bit emotional. Thanks, J. #2: April 1.0 Is Released | 4 comments #3: BQNPAD — a BQN REPL with syntax highlighting and live evaluation preview | 8 comments
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APL deserves its Renaissance too
APL + Lisp =
https://github.com/phantomics/april/ and yes it is used in production©!
> What pushed the development of April really is that April is used by a hardware startup called Bloxl (of which I am the CTO). There are other users but Bloxl is the flagship application.
https://www.arraycast.com/episodes/episode23-andrew-sengul
Bloxl in use: https://user-images.githubusercontent.com/3721004/159686845-... See also the ELS conference 2022.
nl-covid19-data-dashboard
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Japan has entered 8th wave of COVID-19 pandemic, medical body says
The Netherlands is counting: https://coronadashboard.rijksoverheid.nl/
- threat level raised, raises questions for me.
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How do the Dutch manage to be so relaxed when it comes to corona?
The number of hospitalizations and deaths related to covid is very low at the moment, so there currently is no need for stringent measures. It might change again at the end of autumn.
- The impact of removing jQuery on our web performance
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RIVM: nieuwe omikronvariant centaurus duikt op in Nederland
https://coronadashboard.rijksoverheid.nl https://data.rivm.nl/covid-19/
- Door uitblijven coronastrategie komt lockdown weer in beeld
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Your rights aren't dependant on hospital capacity
Personally I think they did a few things well (although always a bit to slow): - vaccination facilities and speed - testing facilities - supporting the economy at all levels (including schools) - (just) preventing hospitals from crashdown due to Covid - making data available to the public (https://coronadashboard.rijksoverheid.nl/)
- Incidence of Omicron: One-in-five Canadians report COVID-19 infection in their household since Dec. 1 | Majority (54%) now say they want all restrictions to end – increase of 15-points since early January
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[KNVB] Professional football doesn't agree with government plans to open stadiums with max 1/3 occupancy, want at least 2/3 occupancy
Yup, we have got 64000 positive tests yesterday. However Hospital admissions and IC admissions are going down. https://coronadashboard.rijksoverheid.nl/
- The implementation of the UK Covid-19 dashboard
What are some alternatives?
BQN - An APL-like programming language. Self-hosted!
uswds - The U.S. Web Design System helps the federal government build fast, accessible, mobile-friendly websites.
stumpwm - The Stump Window Manager
covid-19-data - A repository of data on coronavirus cases and deaths in the U.S.
common-lisp-stat - Common Lisp Statistics -- based on LispStat (Tierney) but updated for Common Lisp and incorporating lessons from R (http://www.r-project.org/). See the google group for lisp stat / common lisp statistics for a mailing list.
govuk-puppet - Decommissioned: Puppet manifests that used to provision the legacy GOV.UK stack.
lisp-matrix - A matrix package for common lisp building on work by Mark Hoemmen, Evan Monroig, Tamas Papp and Rif.
indexfondsenvergelijken.nl - A comparison website for index funds, ETF's, banks and brokers in the Netherlands
Mezzano - An operating system written in Common Lisp
DOM_Maker - JavaScript library for creating DOM structures in the browser.
APL - another APL derivative
httparchive.org - The HTTP Archive website hosted on App Engine