It is hard to convincingly evaluate a player's contribution to team offense, given so many factors involved, both objective and subjective. I took a shot at this problem by analyzing what kind of shot a player takes and how's that compared with league average. The result, as we shall see ... [Read more...]

A question posed by one of my colleagues: can a checksum be used to guess message length? My immediate response was negative and, as it turns out, a simple simulation supported this knee-jerk reaction. Here's the situation: a piece of software has been written to process a stream of messages. ... [Read more...]

Choroplethr v3.3.1 is now on CRAN. You can get it by typing the following from the R command line: Note that while the new version is now on CRAN, it sometimes takes a few days for all of the CRAN mirrors to update. If you are unable to get the ... [Read more...]

By Chris Campbell As another new baby card is passed around the office, and the latest cute baby pictures are emailed out, a discussion is underway. Could it be true? Something in the water? An elixir of fertility that should … Continue reading → [Read more...]

One of the problems often dealt in Statistics is minimization of the objective function. And contrary to the linear models, there is no analytical solution for models that are nonlinear on the parameters such as logistic regression, neural networks, and nonlinear regression models (like Michaelis-Menten model). In this situation, we ... [Read more...]

One of the problems often dealt in Statistics is minimization of the objective function. And contrary to the linear models, there is no analytical solution for models that are nonlinear on the parameters such as logistic regression, neural networks, and nonlinear regression models (like Michaelis-Menten model). In this situation, we ... [Read more...]

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Colored pathways created withthe new R package. Earlier this week there was a question on the WikiPathways mailing list about the webservices. There are older SOAP webservices and newer REST-like webservices, which come with this nice Swagger webfront set up by Nuno. Of course, both approaches are pretty standard and ... [Read more...]

Colored pathways created withthe new R package.Earlier this week there was a question on the WikiPathways mailing list about the webservices. There are older SOAP webservices and newer REST-like webservices, which come with this nice Swagger webfront set up by Nuno. Of course, both approaches are pretty standard and ... [Read more...]

A preview of the Introductory Fisheries Analyses with R book is available here on Google Books. The preview is only of the Table of Contents and Chapter 1. However, you can search within the book, though pages returned by the search are not... [Read more...]

I was searching in the arXiv repository for an interesting paper to read over the weekend, when I found this: “Studying Gender in Conference Talks – data from the 223rd meeting of the American Astronomical Society”. The title and figures caught m... [Read more...]

In my previous blog post, I analyzed my Twitter archive and explored some aspects of my tweeting behavior. When do I tweet, how much do retweet people, do I use hashtags? These are examples of one kind of question, but what about the actual verbal content of my tweets, the ... [Read more...]

I was searching in the arXiv repository for an interesting paper to read over the weekend, when I found this: "Studying Gender in Conference Talks -- data from the 223rd meeting of the American Astronomical Society". The title and figures caught my attention more than the subject of the conference, ... [Read more...]

StackOverview is a popular Q&A site, and a go-to resource for developers of all languages to find answers to programming problems they may have: most of the time, the question has already been asked and answered, or you can always post a new question and wait for a reply. ... [Read more...]

By Hannah Evans Sound familiar? All businesses have data. But whether it is used to drive business value is another question entirely. Traditionally, technical analysts have made decisions about data technology, without truly understanding the business challenges beforehand, meaning that … Continue reading → [Read more...]

It’s been a while since I’ve updated my metricsgraphics package. The hit list for changes includes: Fixes for the new ggplot2 release (metricsgraphics uses the movies data set which is now in ggplot2movies) Updated all javascript libraries to the most recent versions Borrowed the ability to add ... [Read more...]

[This article was first published on Reimagined Invention, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share [Read more...]

I've got a NetAtmo weather station. One can download the measurements from its web interface as a CSV file. I wanted to give time series analysis with the extraction of seasonal components ('decomposition') a try, so I thought it would be a good opport... [Read more...]

I've got a NetAtmo weather station. One can download the measurements from its web interface as a CSV file. I wanted to give time series analysis with the extraction of seasonal components ('decomposition') a try, so I thought it would be a good opportunity to use the temperature measurements of ... [Read more...]

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