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(This article was first published on <strong><a href="https://appsilon.com/satrday-amsterdam/"> r – Appsilon Data Science | We Provide End­ to­ End Data Science Solutions</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p>As I spent an exciting day at <a rel="nofollow" href="https://amsterdam2018.satrdays.org/" target="_blank">satRday</a> conference in Amsterdam I would like to share with you my thoughts.<br>
TL;DR: Event was cool, my presentation went fine <img alt="😉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f609.png" class="wp-smiley"></p>
<h2>General</h2>
<p>Wow, I don’t remember an event where I had so much fun. From most of the talks, I took out something valuable. People were really friendly &amp; open, I believe that I’ll keep in touch with many of them. R community always surprises me with how welcome they are.</p>
<h2>Talks</h2>
<p>– <strong>That’s not [data] science!</strong> – Mara Averick (<a rel="nofollow" href="https://twitter.com/dataandme" target="_blank">@dataandme</a>) – I must admit that her talk was pure entertainment and she knows how to steal a crowd. Although her talk was not a typical R conference talk it was a perfect way to start of the conference. Later on, I exchanged a few words with Mara about how they work in <a rel="nofollow" href="https://www.rstudio.com/" target="_blank">RStudio</a>.</p>
<div class="wp-caption"><img sizes="(max-width: 600px) 100vw, 600px" src="https://i2.wp.com/appsilon.com/assets/uploads/2018/09/MadelijnBazen-600x465.jpg?w=450" alt="" class="wp-image-1277" data-recalc-dims="1">
<p class="wp-caption-text">Twitter @MadelijnBazen</p>
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<p>– <strong>DBI: Recent developments in R’s database interface</strong> – Kirill Müller (<a rel="nofollow" href="https://twitter.com/krlmlr" target="_blank">@krlmlr</a>) useful talk summarizing ways of connecting to various databases from R. Thing I wasn’t aware of: dbplyr. Looked pretty awesome.</p>
<p>– <strong>Getting more out of dplyr</strong> – Suzan Baert (<a rel="nofollow" href="https://twitter.com/suzanbaert" target="_blank">@SuzanBaert</a>) printed out and went through whole dplyr documentation. IMHO that itself sounds impressive. She recommended using less known but handy functions, such that: select_all, select_if, select_at.<br>
<img alt="👉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f449.png" class="wp-smiley"><a rel="nofollow" href="https://github.com/suzanbaert/SatRdaysAmsterdam18_dplyr" target="_blank">Slides</a></p>
<p>– <strong>Making shiny shine even brighte</strong>r – definitely best talk of the day <img alt="😛" src="https://s.w.org/images/core/emoji/2.4/72x72/1f61b.png" class="wp-smiley"> ! The <a rel="nofollow" href="https://github.com/dokato" target="_blank">lecturer</a> delivered invaluable knowledge and absolutely stole the show. <img alt="😉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f609.png" class="wp-smiley"> But seriously, in my private scale, it went 8/10 <img alt="🙂" src="https://s.w.org/images/core/emoji/2.4/72x72/1f642.png" class="wp-smiley"> I forgot to turn on a microphone at the beginning (some others did that as well) and maybe because of that, I became dry in mouth after several slides. But later on, it went smooth. I’m not very happy with Q&amp;A as I got 3 questions in a row that I couldn’t answer specifically: When shiny.users?, Where I see the future: shiny, django or ruby? Are there plans to merge shiny.i18n with shiny?. It might have given the impression like I’m escaping from answers. Rest of the questions went fine. On the other hand, I believe that no-one received more of them and that means engagement.<br>
<img alt="👉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f449.png" class="wp-smiley"><a rel="nofollow" href="http://appsilon.com/assets/uploads/2018/09/AMST_-Making-Shiny-shine-even-brighter.pdf" target="_blank">Slides</a></p>
<div class="wp-caption"><img sizes="(max-width: 600px) 100vw, 600px" src="https://i2.wp.com/appsilon.com/assets/uploads/2018/09/cecilesauder-600x450.jpg?w=450" alt="" class="wp-image-1278" data-recalc-dims="1">
<p class="wp-caption-text">Twitter @cecilesauder</p>
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<p>– <strong>An exploration of NSE and tidyval</strong> – Edwin Thoen (<a rel="nofollow" href="https://twitter.com/edwin_thoen" target="_blank">@edwin_thoen</a>) Nice talk regarding problems with lazy evaluation, the same that <a rel="nofollow" href="https://appsilon.com/how-environments-work-in-r-and-what-is-lazy-evaluation/" target="_blank">Damian once mentioned</a>. Edwin showed how to use substitute function to get rid of problems with tidyverse functions. Something like this:<br>
f2 &lt;-function(x,y) {a&lt;-substitute(y); x+a}<br>
It is similar to force:<br>
f1 &lt;-function(x,y) {force(y); x+3}<br>
but it doesn’t evaluate the argument directly.<br>
<img alt="👉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f449.png" class="wp-smiley"><a rel="nofollow" href="https://github.com/EdwinTh/satRday" target="_blank">Slides</a>, <a rel="nofollow" href="https://edwinth.github.io/blog/nse/" target="_blank">full article</a>.</p>
<p>– <strong>50 ways to show your data</strong> – Thomas Hütter (<a rel="nofollow" href="https://twitter.com/derfredo" target="_blank">@derfredo</a>) – Thomas admitted that he comes from SQL community and he discovered R quite recently, so he was showing most of the well-known plotting packages. One I didn’t know: waterfalls.<br>
<img alt="👉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f449.png" class="wp-smiley"><a rel="nofollow" href="https://github.com/SQLThomas/Conferences/tree/master/SatRdayAms2018" target="_blank">Slides</a></p>
<p> </p>
<h2>Lightning talks</h2>
<p>Level varied from one to another but most were really interesting and well performed. A short summary of ones I liked the most:<br>
– <strong>Two hobby projects with the text2vec package</strong> – Longhorn Lam (<a rel="nofollow" href="https://twitter.com/longhowlam" target="_blank">@longhowlam</a>) – funny and very very simple projects with text2vec. Like analyzing ‘Bold and beautiful’ relation between characters based on plots descriptions.</p>
<p>– <strong>Using R/ R Markdown to create individual reports</strong> – Olga Sholderer (<a rel="nofollow" href="https://twitter.com/sholderer" target="_blank">@sholderer</a>)- nice way to generate good quality reports in word/excel with Markdown – IMHO big business value.</p>
<p>– <strong>Making multimillion-dollar baseball decisions with R, Shiny and H2O AutoML</strong> – Joe-fai Chow (<a rel="nofollow" href="https://twitter.com/matlabulous" target="_blank">@matlabulous</a>) – a guy from <a rel="nofollow" href="http://h2o.ai/" target="_blank">H2O.ai</a>. In my view: talk of the day. Have you watched Moneyball? So he got in touch with a real Moneyball guy (<a rel="nofollow" href="https://en.wikipedia.org/wiki/Billy_Beane" target="_blank">Billy Beane</a> who was an inspiration for the movie &amp; initially the book) and implemented – based on some public and private baseball data – simple players ranking. A real Moneyball guy used it once during some demo session in LA and two days later generated 20 mln $$$ transaction thanks to that. So impressive! I really think about going to H2O conference in London towards the end of October.<br>
<img alt="👉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f449.png" class="wp-smiley"><a rel="nofollow" href="https://github.com/woobe/satRdayAMS_moneyball" target="_blank">Slides</a></p>
<div class="wp-caption"><img sizes="(max-width: 600px) 100vw, 600px" src="https://i1.wp.com/appsilon.com/assets/uploads/2018/09/matlabulous-600x400.jpg?w=450" alt="" class="wp-image-1279" data-recalc-dims="1">
<p class="wp-caption-text">Twitter @matlabulous</p>
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<p>Miscellaneous<br>
– Amsterdam is a really cool city. I’ve been there before, but back in my teenage years, I couldn’t appreciate it enough. <img alt="🌆" src="https://s.w.org/images/core/emoji/2.4/72x72/1f306.png" class="wp-smiley"><br>
– One of the first Saturday’s was organized in Cardiff! <img alt="💪" src="https://s.w.org/images/core/emoji/2.4/72x72/1f4aa.png" class="wp-smiley"><br>
– I was wondering how many Appsilon hex stickers I gonna have to bring back home. Well, it appeared that none. Literally, ALL hex stickers were taken and people really liked them. (I even forgot to leave some for myself <img alt="🙁" src="https://s.w.org/images/core/emoji/2.4/72x72/1f641.png" class="wp-smiley"> ) <img alt="🎉" src="https://s.w.org/images/core/emoji/2.4/72x72/1f389.png" class="wp-smiley"><br>
– Many people (circa 10) were asking about shiny.users! More news really soon, please sing up on our <a rel="nofollow" href="https://mailchi.mp/appsilondatascience.com/shiny-user-management" target="_blank">waiting list!</a> <img alt="📫" src="https://s.w.org/images/core/emoji/2.4/72x72/1f4eb.png" class="wp-smiley"><br>
– … but they were asking about other packages too <img alt="🙌" src="https://s.w.org/images/core/emoji/2.4/72x72/1f64c.png" class="wp-smiley"></p>
<p>Link to event: <a rel="nofollow" href="http://amsterdam2018.satrdays.org/" target="_blank">http://amsterdam2018.satrdays.org/</a></p>
<p>Cheers,<br>
Dominik</p>
<p>Artykuł <a rel="nofollow" href="https://appsilon.com/satrday-amsterdam/" target="_blank">What you missed at satRday @Amsterdam</a> pochodzi z serwisu <a rel="nofollow" href="https://appsilon.com/" target="_blank">Appsilon Data Science | We Provide End­ to­ End Data Science Solutions</a>.</p>
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