The #814 Le Monde math puzzle was to find 100 digits (between 1 and 10) such that their sum is equal to their product. Given the ten possible values of those digits, this is equivalent to finding integers a1,…,a10 such that a1+…+a10=100 and a1+2a2+…+10a10=2a2x….x10a10, which reduces the number of unknowns from 100 to 10 (or [...]
These posts are coming in rapid fire. I understand the previous one was dense, so I'll try to make this lighter without skimping on the cool stuff. Let's go! Chapter 10 deals with I/O - input/output. This is a really important topic that I don't think ...
It's what you've all been waiting for! Let's continue on with our book review: In Chapter 8, the author discusses Math and Simulation functions in R. The topics in this chapter could fill a book given this is what R is primarily used for. However the a...
To give you all some time to digest my review of the Art of R Programming, I thought why not continue this trend of book reviews with a review of Learning SQL. This book came highly recommended by some colleagues of mine as a place to whet your SQL app...
As mentioned in part 3 of this series, I'll now touch on some random interesting topics from the remaining chapters in this book in a more structured manner. Chapter 7 covers programming structures, that is, for and while loops, if-else statements, an...
Continuing this series, I'm going to list out a number of other interesting functions and features that I've been (re)learning while reading the Art of R Programming. cut(x,b,labels=F) - creates a factor out of a vector x, by placing each element of x ...
As mentioned before, I've been reading this book and noting some interesting R features/functions that I either didn't know, or didn't use in the way the author does. Don't expect a detailed account or summary of each chapter in the book, but rather so...
The current puzzle is as follows: Take a board with seven holes and seeds. The game starts with one player putting the seeds on the holes as he or she wishes. The other player picks a seed wherever. Then, alternatively, each player picks a seed in a hole contiguous to the previous one. The loser [...]
![the BUGS Book [guest post]](http://www.mrc-bsu.cam.ac.uk/bugs/thebugsbook/bugsbook_cover.png)
(My colleague Jean-Louis Fouley, now at I3M, Montpellier, kindly agreed to write a review on the BUGS book for CHANCE. Here is the review, en avant-première! Watch out, it is fairly long and exhaustive! References will be available in the published version. The additions of book covers with BUGS in the title and of the corresponding [...]
The special issue of CHANCE on George Casella’s books has now appeared and it contains both my earlier post on George passing away and reviews of several of his books, as follows: Andrew Gelman on Introducing Monte Carlo Methods with R Bill Strawderman on Statistical Inference Jean-Louis Foulley on Variance Components Larry Wasserman on Theory [...]
