Hello everyone! In this post, I will show you how to do hierarchical clustering in R. We will use the iris dataset again, like we did for K means clustering. What is hierarchical clustering? If you recall from the post about k means clustering, it requires us to specify the ... [Read more...]

by Joseph Rickert In a previous post, I showed some elementary properties of discrete time Markov Chains could be calculated, mostly with functions from the markovchain package. In this post, I would like to show a little bit more of the functionality available in that package by fitting a Markov ... [Read more...]

This morning I read Wendy Kan's interesting post on Creating Santa's Stolen Sleigh. I hadn't really thought too much about the process of constructing an optimisation competition, but Wendy gave some interesting insights on the considerations involved in designing a competition which was both fun and challenging but still computationally ... [Read more...]

"Count" data occur frequently in economics. These are simply data where the observations are integer-valued - usually 0, 1, 2, ....... . However, the range of values may be truncated (e.g., 1, 2, 3, ....). To model data of this form we typically resort to distributions such as the Poisson, negative binomial, or variations of these. These variations ... [Read more...]

"Count" data occur frequently in economics. These are simply data where the observations are integer-valued - usually 0, 1, 2, ....... . However, the range of values may be truncated (e.g., 1, 2, 3, ....).To model data of this form we typically resort to distributions such as the Poisson, negative binomial, or variations of these. These variations ... [Read more...]

Individual-level estimates from survey data I was motivated by web apps like the British Office of National Statistics’ How well do you know your area? and How well does your job pay? to see if I could turn the New Zealand Income Survey into an individual-oriented estimate of income given ... [Read more...]

I’ll be running an R course soon and I am looking for fun (public) datasets to use in data manipulation and visualization. I would like to use a single dataset that has some easy variables for the first days, but … Continue reading → [Read more...]

Hiroki ITÔ (pictured) has done everyone a service in translating to Stan the example models from Marc Kéry and Michael Schaub (2012) Bayesian Population Analysis using WinBUGS: A Hierarchical Perspective. Academic Press. You can find the code in our example-models repository on GitHub: Stan code for BPA This greatly expands ... [Read more...]

There are many benefits to teaching undergraduate statistics with R–especially in the RStudio environment–but it must be admitted that the learning curve is fairly steep, especially when it comes to tinkering with plots to get them to look just the way one wants. If there were ever a ... [Read more...]

Guest post by Krishna Prasad As a business analyst using R, one has often stumbled across situations for visually representing the data on a map. Here are some common [Read more...]

A quick heads-up that I'll be presenting a live webinar on Thursday January 28, Introduction to Microsoft R Open. If you know anyone that should get to know R and/or Microsoft R Open, send 'em along. Here's the abstract: Data Science is a strategic initiative for most companies today, who ... [Read more...]

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[social4i size=”large” align=”float-right”] The site R-bloggers.com is now 6 years young. It strives to be an (unofficial) online news and [Read more...]

Another big part of the food supply comes from ranches and farms that raise and slaughter various livestock. While ranching …Continue reading → [Read more...]

Win-Vector LLC is starting a data science mailing list that we would like you to sign up for. It is going to be a (deliberately infrequent) set of updates including Win-Vector LLC notices, upcoming speaking events, and data science products. To kick this off we will be awarding 5 free permanent ... [Read more...]

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Jim Albert has a baseball blog: Baseball with R I sent a link internally to people I knew were into baseball, to which Andrew replied, “I agree that it’s cool that he doesn’t just talk, he has code.” (No kidding—the latest post as of writing this was ... [Read more...]

Microsoft R Open 3.2.3, the performance-enhanced distribution of R 3.2.3, is now available for download from mran.microsoft.com. This is the latest (and first of many to come!) update to Revolution R Open under its new name. In addition to the improvements in R 3.2.3, this update to MRO brings support for ... [Read more...]

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