#DataScience learning community. Build projects, share your work, advance your career.

Joined April 2018
99 Photos and videos
DataOptimal retweeted
7 May 2019
The third post in my #MovingPastTutorials series is out! This time, I wrote about pseudocode! If you are staring at a blank text editor unsure where to start, this one's for you! dev.to/aspittel/moving-past-…
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DataOptimal retweeted
Want to build a website right in @RStudio? Here's a new tutorial from @mjfrigaard on blogdown. #rstats storybench.org/how-to-build-…

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DataOptimal retweeted
6 May 2019
Messy Data? Try this video on "Cleaning and Tidying Data" using Pandas from our PyData DC Meetup youtube.com/watch?v=iYie42M1…
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I took some time this morning to pull together all my #rstats tutorials on Kaggle! I've got stuff for everybody from non-programmers to people looking for NLP resources. Hope y'all find them helpful! 🤓📚💻 kaggle.com/rtatman/rachael-s…
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DataOptimal retweeted
The R graphics cookbook is a great way to improve your visualisation skills, and it's now available online on for free! #rstats
The second edition of R Graphics Cookbook is available in print and online! #rstats amazon.com/dp/1491978600 r-graphics.org/ Thanks to @hadleywickham for setting up the web site!
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DataOptimal retweeted
I just taught a 2 days course on #dataviz with #rstat. I share the course material in case it can help somebody: yan-holtz.com/teaching Included: DataViz intro & caveats, ggplot2, R Markdown, and Github intro
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DataOptimal retweeted
🙌 Really nice side-by-side for dplyr & #rdatatable syntax… "A data.table and dplyr tour" by atrebas buff.ly/2InxC8Y #rstats
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I'm seriously considering turning my "Data Science for Economists" course notes into a book. github.com/uo-ec607/lectures You can help me decide by answering three simple polling questions below! (Comments and retweets appreciated.)
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DataOptimal retweeted
18 Feb 2019
I have a big announcement! 🎉 New programmers tend to struggle with putting together the pieces of the puzzle when creating bigger projects. So, I'm creating a multimedia series on problem solving, breaking down problems, debugging and more. dev.to/aspittel/moving-past-…
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DataOptimal retweeted
In our latest post, our Robust & Verified AI team introduces our work on rigorous specification-testing (catching bugs), robust training (eliminating bugs) and formal verification (proving the absence of bugs) of ML models. deepmind.com/blog/robust-and… @pushmeet DJ @uesatoj @sgowal

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DataOptimal retweeted
I've made this cheat sheet and I think it's important. Most stats 101 tests are simple linear models - including "non-parametric" tests. It's so simple we should only teach regression. Avoid confusing students with a zoo of named tests. lindeloev.github.io/tests-as… 1/n
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DataOptimal retweeted
I recently started a series called 'Equations of Data Science'. This is the first picture in the series. Please share it with the community if you find it useful. @jeremyphoward @_brohrer_ @chrisalbon @ruder #datascience #machinelearning #equationsofdatascience
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DataOptimal retweeted
19 Mar 2019
I'm going to attempt to crack a password in a SQL database to help fight crime in this video. In order to do so, we'll have to learn about the fundamental topics in Discrete Math (combinatorics, graph theory, set theory, number theory, logic, & recursion) youtu.be/LGt4PE7-ATI
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DataOptimal retweeted
🐦 Wanna use twitter data like a pro? (slides & code) 📽 "rtweet workshop: Collecting and analyzing Twitter data" by @kearneymw buff.ly/2B3H9hn #rstats #ddj
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DataOptimal retweeted
My PhD thesis Neural Transfer Learning for Natural Language Processing is now online. It includes a general review of transfer learning in NLP as well as new material that I hope will be useful to some. ruder.io/thesis/
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DataOptimal retweeted
✋ ‘If you use statistics in research, business, or policymaking but are not a statistician, these articles were indeed written with YOU in mind.’ 📄 Moving to a World Beyond “p < 0.05” — @Ron_Wasserstein et al. buff.ly/2ukJr7H #statistics

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Data Cleaning with R and the Tidyverse: Detecting Missing Values #DataScience #rstats #tidyverse @TDataScience bit.ly/2U6GMwC
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DataOptimal retweeted
Want to understand #Python exceptions? I highly recommend this post by @ConquerProgram1: conquerprogramming.com/blog/… New to exceptions? You'll learn how & why to use try/except/else/finally Already using exceptions? You'll learn how to use exceptions to write more Pythonic code 🐍

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DataOptimal retweeted
Here's another example from the workshop I am presenting next week: using Python to count word frequencies, bi-grams, and tri-grams, then generate a random Grimms' fairy tale: nbviewer.jupyter.org/gist/Al…
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DataOptimal retweeted
15 Mar 2019
In this week's #tidytuesday screencast, I analyze data on board games🎲♟️ This includes fitting a lasso regression model to predict a game's rating, using glmnet, broom, and other #tidyverse packages. Some fun feature engineering and model exploration! youtube.com/watch?v=qirKGdQv…
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