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Statistics

Statistics Tue May 22 2018 22:18:11 GMT+0000 (UTC)
WHERE THE PARTY'S AT -- Thank you for the many requests to provide some extra info on how best to get finalfit results out of RStudio, and particularly into Microsoft Word. Here is how. Make sure you are on the most up-to-date version of finalfit. [crayon-5b04b4e219aae50213
You've got to look out for conflicts on your dataviz! Example from Explosm courtesy of reader Chris P. Color says one thing. Face says something else. Words agree with Color. Pen objects.You've got to look out for conflicts on your dataviz! E
I just made one of those O’Reilly parody book covers.     It’s a joke on Judea Pearl, expert in causal inference, and the Perl programming language, known for its unusual, terse syntax. Related:I just made one of
Today, two statisticians (and good friends of mine) from Australia, Noel Cressie and Kerrie Mengersen, got elected at the Australian Academy of Sciences. Congratulations to them! Today, two statisticians (and good friends of mine) from Australia, Noe
This week at the BUILD conference, Microsoft announced that Power BI custom visuals will soon be available as charts with Excel. You'll be able to choose a range of data within an Excel workbook, and pass those data to one of the built-in Power BI cu
On September 12-14 the 6th international conference on the use of R in official statistics (#uRos2018) will take place at the Dutch National Statistical Office in Den Haag, the Netherlands. The conference is aimed at producers and users of official C
Mining your data for valuable insights can be overwhelmingly challenging and incredibly rewarding. Case in point: LinkedIns ongoing 2017 Workforce Report. With 138 million members in the United States, 3 million monthly U.S. job postings, 20,000 comp
Kaiser Fung, founder of Principal Analytics Prep, discusses a chart about digital marketing salaries, which contains perceptive problems found in many charts.The following chart about "ranges and trends for digital marketing salaries&quo
First, let me say I would love to have an easy button for predictive analytics. Unfortunately, predictive analytics is hard work that requires deep subject matter expertise in both the business problem and data science. Im not trying to be provocativ
On July 2-4, 2018, there will be an ISBA sponsored workshop on Bayesian non-parametrics for signal and image processing, in Bordeaux, France. This is a wee bit further than Warwick (BAYsm) or Rennes (MCqMC), but still manageable from Edinburgh with d
Kaiser Fung, founder of Junk Charts and Principal Analytics Prep, likes the visual design of the How to Fix It project by Google Newslab and Xaquin, and suggests that the search index data need to be pre-processed.Another entry in the Google Newslab
This morning I ran across the following graph via Horace Dediu. I developed Windows software during the fattest part of the Windows curve. That was a great time to be in the Windows ecosystem. Before that I was in an academic bubble. My world consist
The entrance to our office in Redmond in is adorned with this sculpture of our department logo, rendered in LEGO: We had fun with LEGO bricks at work this week. APEX is our internal team name, this was fun. Oh and we're hiring for all roles in Azure!
We are pleased to announance upcoming Why R? 2018 conference that is going to happen in central-eastern Europe (Poland, Wroclaw) this July (2-5th). It is the last week for the call for papers! Submit your talk here. About More about the conference on
A (rather urgent) call for candidates for PhD studentships in AI and Data Science at Warwick. These are part of Warwicks MRC-Funded Doctoral Training Program in Interdisciplinary Biomedical Research. Selected students would start in Autumn 2018. The
Kaiser Fung, creator of Junk Charts, and Principal Analytics Prep, discusses dot maps.Reader Chris P. sent me this chart. This was meant to be "light entertainment." See the Twitter discussion below. *** Let's think a bit ab
Researchers have discovered that for some problems, deep neural networks (DNNs) can get by with low precision weights. Using fewer bits to represent weights means that more weights can fit in memory at once. Microsoft mentioned its proprietary floati
Last week at the New York R Conference, I gave a presentation on using R in Minecraft. (I've embedded the slides below.) The demo gods were not kind to me, and while I was able to show building a randomly-generated maze in the Minecraft world, my att
Registration is now open for my 1.5-day workshop on deep learning with Keras and TensorFlow using R. It will take place on July 5th & 6th in Mnster, Germany. You can read about one participants experience in my last workshop: Big Data a buzz
Kaiser Fung, creator of Junk Charts and Principal Analytics Prep, looks at an old chart from Germany from the 1960s about swimming pools.Reader Patrick S. sent in this old gem from Germany. He said: It displays the change in numbers of visitors to pu
Categorical data analysis could mean a couple different things. One is analyzing data that falls into unordered categories (e.g. red, green, and blue) rather than numerical values (e..g. height in centimeters). Another is using category theory to ass
In an update to his analysis of taxi and ride-share trips, Todd Schnieder reports that the number of daily Uber rides exceeds the number of taxi rides in New York City, as of November 2017. The data is provided by the New York Taxi and Limousine Comm
Aime Gott, Education Practice Lead I always find it difficult to pick highlights from a conference and the eRum 2018 team did a fantastic job of making it difficult for me once again, so here goes... Day One The first day offered a huge choice in wor
The Newslab project takes aggregate data from Google's various services and finds imaginative ways to enliven the data. The Beautiful in English project makes a strong case for adding playfulness to your data visualization. The data came from Google
Johann Kepler discovered in 1596 that the ratios of the orbits of the six planets known in his day were the same as the ratios between nested Platonic solids. Kepler was understandably quite impressed with this discovery and called it the Mysterium C
Tal Galili's R-bloggers.com has been syndicating blog posts about R for quite a while from memory I'd say about 8 years, but I couldn't find the exact date it started aggregating. Anyway, it contains a wealth of information about activity in the R ec
With fewer than three weeks left in the June 7 provincial elections in Ontario, Canadas most populous province with 14.2 million persons, the expected outcome is far from certain.The weekly opinion polls reflect the volatility in public opinion. Prog
Cannoli are among my favourite pastries and one of the first things I try to eat while in Italy (if never in Sicily)… (Or in Boston!) Especially since they cannot travel. Hence, when my wife brought me cannoli baking tubs from Venezia, I to
Kaiser Fung, creator of Junk Charts and Principal Analytics Prep, continues to discuss the Google Newslab project showing racial and gender diversity in U.S. newsroom.This post is part 2 of an appreciation of the chart project by Google Newslab, advi
One attempt at rationalizing astrology is to say that the gravitational effects of celestial bodies impact our bodies. To get an idea how hard the stars and planets pull on us, let’s compare their gravitational attraction to that of cows at
I've been wrestling with regular expressions recently, so it was useful to give myself a bit of a refresher with Regex Crossword (with thanks to my colleague Paige for the tip). Little crossword-style puzzles (or various difficulties) challenge you t
Keynote lecture about R/exams at eRum 2018 (European R Users Meeting) in Budapest: Slides, video, e-learning, replication materials. Keynote lecture at eRum 2018 R/exams was presented in a keynote lecture by Achim Zeileis at eRum 2018, the European
A combinatoric Le Monde mathematical puzzle of limited size: When the only allowed move is to switch two balls from adjacent boxes, what is the minimal number of moves to return all balls in the above picture to their respective boxes? Same question
Kaiser Fung, creator of Junk Charts and Principal Analytics Prep, looks at the details of a collaboration between Google Newslab and Alberto Cairo, on newsroom staff diversity.Today, I take a detailed look at one of the pieces that came out of an ama
Take any positive integer n and sum the squares of its digits. If you repeat this operation, eventually you’ll either end at 1 or cycle between the eight values 4, 16, 37, 58, 89, 145, 42, and 20. For example, pick n = 389. Then 3 + 8 + 9 =
If you're a fan of the HBO show Silicon Valley, you probably remember the episode where Jian Yang creates an application to identify food using a smartphone phone camera: Surprisingly, the app in that scene isn't just a pre-recorded special effect: t
The openrouteservice provides a new method to get geodata into R. It has an API (or a set of them) and an R package has been written to communicate with said API(s) and is available from GitHub. Ive just been playing around with the examples on this
The riddle from the Riddler for the coming weeks is extremely simple to express in mathematical terms, as it summarises into characterising the distribution of when the n-sample is made of iid Normal variates. I however had a hard time finding a resu
Kaiser Fung, founder of Junk Charts and the data analytics bootcamp Principal Analytics Prep, discolors a chart showing ages of followers of different world religions.Today's chart comes from Pew Research Center, and the big question is why t
I heard somewhere that Pluto receives more sunlight than you might think, enough to read by, and that sunlight on Pluto is much brighter than moonlight on Earth. I forget where I heard that, but I’ve done aback-of-the-envelope calculation t
Who says there's no art in mathematics? I've long admired the generative art that Thomas Lin Peterson occasionally posts (and that you can see on Instagram), and though he's a prolific R user I'm not quite sure how he makes his art. Marcus Volz has a
wrapr 1.4.1 is now available on CRAN. wrapr is a really neat R package both organizing, meta-programming, and debugging R code. This update generalizes the dot-pipe features dot S3 features. Please give it a try! wrapr, is an R package that supplies
Last week, I had the pleasant surprise to receive a copy of this book in the mail. Book that I was not aware had been written or published (meaning that I was not involved in its review!). The three authors, Luca Martino, David Luengo, and Joaqun Mgu
Kaiser Fung, founder of data analytics bootcamp Principal Analytics Prep, features a data graphic that is sure to annoy Bernie Sander's supporters.Note that I am placing this post under Light Entertainment.   
The previous post looked at how much information is contained in zip codes. This post will look at how much information is contained in someone’s age, birthday, and birth date. Combining zip code with birthdate will demonstrate the plausibi
Since its inception over 40 years ago, when S (R's predecessor) was just a sketch on John Chambers' wall at Bell Labs, R has always been a language for providing interfaces. I was reminded of this during Dirk Eddelbuettel's presentation at the Chicag
A maintenance release of the inline package arrived on CRAN today. inline facilitates writing code in-line in simple string expressions or short files. The package is mature and in maintenance mode: Rcpp used it greatly for several years but then mov