[The Art of] Regression and other stories
CoI: Andrew sent me this new book [scheduled for 23 July on amazon] of his with Jennifer Hill and Aki Vehtari. Which I read in my garden over a few...continue reading.
CoI: Andrew sent me this new book [scheduled for 23 July on amazon] of his with Jennifer Hill and Aki Vehtari. Which I read in my garden over a few...continue reading.
Hi all, This post is about a way of sampling from a Categorical distribution, which appears in Arthur Dempter‘s approach to inference as a generalization of Bayesian inference (see Figure...continue reading.
{\sf df=function(x)2*pi*x-4*(x>1)*acos(1/(x+(1-x)*(x<1)))} As I was LaTeXing a remote exam for next week, including some R code questions, I came across the apparent impossibility to use < and > symbols in...continue reading.
An interesting challenge on The Riddler on the probability to see a random interval X’ing with all other random intervals when generating n intervals from Dirichlet D(1,1,1). As it happens...continue reading.
When answering an X validated question on running an accept-reject algorithm for the Gamma distribution by using a mixture of Beta and drifted (bt 1) Exponential distributions, I came across...continue reading.
Hi everyone, This short post is just to point to a course on “Couplings and Monte Carlo”, available here https://sites.google.com/site/pierrejacob/cmclectures. Versions of the course were given in Université Paris-Dauphine in...continue reading.
The Riddler was sort of feeling the rising boredom of being under lockdown when proposing the following variant to the Monty Hall puzzle: There are zero to three goats, with...continue reading.
This article is originally published at https://xianblog.wordpress.com Thanks for visiting r-craft.org This article is originally published at https://xianblog.wordpress.com Please visit source website for post related comments.continue reading.
When considering the distribution of the sum (or average) of N Uniform variates, called either Irwin-Hall for the sum or Bates for the average, simulating the N uniforms then adding...continue reading.
In this article I use the random forest algorithm to forecast mid price dynamic over short time horizon i.e. a few seconds ahead. This is of particular interest to market...continue reading.
Being able to make causal claims is a key business value for any data science team, no matter their size.Quick analytics (in other words, descriptive statistics) are the bread and...continue reading.
I have written couple of blog posts on R packages (here | here ) and this blog post is sort of a preset of all the most needed packages for...continue reading.
A weekly Monde current mathematical puzzle that reminded me of an earlier one (but was too lazy to check): The integer n=36 enjoys the property that all the differences between...continue reading.
“…an essential part of understanding how many ties these RNGs produce is to understand how many ties one expects in 32-bit integer arithmetic.” A sort of a birthday-problem paper for...continue reading.
Microsoft has released a GitHub repository to share best practices for time series forecasting. From the repo: Time series forecasting is one of the most important topics in data science....continue reading.
I hate to be the one to break it to you, but the average customer shouldn’t be that important to you. I’m not writing this to repeat the marketing rhetoric you hear...continue reading.
I hate to be the one to break it to you, but the average customer shouldn’t be that important to you. I’m not writing this to repeat the marketing rhetoric you hear...continue reading.
A micromort is one in a million chance of dying – it is equivalent to tossing 20 coins and getting 20 headscontinue reading.
A paper (and an introduction to the paper) in Nature this week seems to have made progress on the existence of indefinite predator-prey cyles. As in the lynx/hare dataset available...continue reading.
A vaguely arithmetic challenge as Le weekly Monde current mathematical puzzle: Given two boxes containing x and 2N+1-x balls respectively. If one proceeds by repeatedly transferring half the balls from...continue reading.