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    Andrei Beliankou
    @arbox
    Hi @kou
    You're doing very useful thing here :) Please don't give up!
    Kouhei Sutou
    @kou
    If only I actively work, this project will die. This project needs many continuously active members.
    Andrei Beliankou
    @arbox
    For my part I can do public work and tell people about that.
    You projects will go on the RubyDataScience list and get continuous attention in Ruby relate media.
    Kouhei Sutou
    @kou
    Thanks!
    Andrei Beliankou
    @arbox
    Hi @kou, would you mind to make an official release announcement on SciRuby Mailing list ?
    zverok @zverok waves
    Victor Shepelev
    @zverok
    Hi guys. You are awesome.
    SciRuby delegation here :)
    Andrei Beliankou
    @arbox
    :)
    Kouhei Sutou
    @kou
    @zverok Great! It's important for us that many people cooperate instead of one core person (or a few core people) only works actively!
    Kouhei Sutou
    @kou
    Development idea: Create packages for MSYS2
    red-data-tools/want-to-do#1
    Development idea: Create packages for macOS
    red-data-tools/want-to-do#2
    Kyle
    @kylekyle
    Just learned about Apache Arrow at JupyterCon: https://conferences.oreilly.com/jupyter/jup-ny
    Excited to see Ruby bindings!
    Kouhei Sutou
    @kou

    Did you see this session? https://www.slideshare.net/wesm/data-science-without-borders-jupytercon-2017

    Yes. We already have the official Ruby bindings of Apache Arrow.
    We, Red Data Tools members, are chickens! I hope that you join us and act as a chicken instead of egg.

    Kyle
    @kylekyle
    Does anyone have an end-to-end example of using red-arrow to generate/read data and perform some computation?
    Kouhei Sutou
    @kou

    How do you want to use the example?

    I have an example that

    • reads Ruby's reference manual data (in Japanese) from Groonga database,
    • generates Arrow data from the read data by Red Arrow,
    • reads the Arrow data from Python,
    • estimates topics of Ruby's reference manual data by LDA in scikit-learn (not Gensym),
    • generates Arrow data from estimated topics by PyArrow,
    • writes the generated Arrow data by PyArrow,
    • reads the written Arrow data by Red Arrow
    • and formats the read Arrow data with data in Groonga database in Ruby

    at https://github.com/kou/rabbit-slide-kou-nagoya-rubykaigi-03/tree/master/examples .

    Kyle
    @kylekyle
    @kou: That's exactly what I was after. Thanks!
    Cheul Young Park
    @cheul0
    img1.png
    img2.png
    Hi! First I want to say thanks to @kou for making awesome jekyll-jupyter-notebook gem. I got it to work with my Jekyll site today. One question I have is though, it seems that including a notebook overrides CSS theme that's currently in place. I uploaded two images as examples. Any suggestion on how to get around this problem? :point_up: March 30, 2018 4:38 PM
    Kouhei Sutou
    @kou
    Can you show your Jekyll site codes? I want to confirm the case on my environment.
    Kouhei Sutou
    @kou
    jekyll-jupyter-notebook 0.0.3 will fix it.
    Cheul Young Park
    @cheul0
    Here are codes for my Jekyll site if you still need it. And thanks! :)
    Kouhei Sutou
    @kou
    I couldn't find any .ipynb files...
    Cheul Young Park
    @cheul0
    Oh sorry! The .ipynb file isn't on GitHub because I only tested it locally as a draft.
    Vinh Loc
    @vinhloc30796

    Hey everyone. I'm from Republic.

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    Our quickly expanding team is looking for a Senior Full Stack Product Engineer https://republic.co/jobs/senior-full-stack-product-engineer
    Our engineer team includes only 4 people - but all are awesome with experience building infrastructure for AngelList and strong product sense.

    Location: NY, SF, but also possibly remote

    We use RoR, Coffeescript, HAML, Sass, MySQL, and AWS - with a lot of growth & perks for you.
    Last year this time we had 15 people. In May we had 25. Now we have 32. Yeap. Lotsa growth.

    Also we're having a hefty sharing bonus:
    It's $10,000 for you if a friend that you referred gets hired. If your friend refers someone, they get $10K, and you get $1K.

    LemonAndroid
    @LemonAndroid
    hey
    kojix2
    @kojix2
    RedArrow's CSV loading speed is amazing. It's time to join here as a user.
    kojix2
    @kojix2
    I want to read the CSV file with RedArrow and convert it to Narray. How do I convert RedArrow Tables/Columns to Tensors?
    Kenta Murata
    @mrkn
    Don’t convert to tensors.
    We need a feature that extracts two NArray vectors from an Arrow::Array. One of these vectors is the value array, and the other is the bitvector of null bitmap. Such the feature should be provided in red-arrow-numo-narray, but it is unavailable yet.
    kojix2
    @kojix2
    I see.