I recently posted on the addition of ageKeyPlot() to the FSA package for visualizing age-length keys. Since that post, I have added one more type of plot as illustrated below. This post should be considered as an extension of the … Continue reading → [Read more...]

At Oracle our goal is to enable you to get timely insight from all of your data. We continuously enhance Oracle Database to allow workloads that have traditionally required extracting data from the database to run in-place. We do this to narrow the ga... [Read more...]

Image by Ennio Pozzetti   In this post I will explore some of the movements in markets in recent years, these movements have caught many by surprise resulting in some people unexpectedly striking it rich while others have lost a great deal. I am no financial advisor, nor do I have ... [Read more...]

I enjoyed talking to University of Alabama students this morning about wealth, skill, and luck.  I tried to synthesize a whole lot of research into something meaningful.  Of course, it would not have been possible without rCharts + Slidify.  Thanks ... [Read more...]

by Daniel Hanson Last time, we looked at the four-parameter Generalized Lambda Distribution, as a method of incorporating skew and kurtosis into an estimated distribution of market returns, and capturing the typical fat tails that the normal distribution cannot. Having said that, however, the Normal distribution can be useful in ... [Read more...]

GoogleVis 0.5.1 was released on CRAN yesterday. New Features New functions gvisSankey, gvisAnnotationChart, gvisHistogram,gvisCalendar and gvisTimeline to support the new Google charts of the same names (without 'gvis'). New demo Trendlines showing how... [Read more...]

This is the third in my series of three posts on my package freqparcoord with Yingkang Xie. (My next post after this will show how to use R to explore one of my favorite examples of “what can go wrong” in statistics.) Here is a very brief review of my ... [Read more...]

This post shares the video from the talk presented in 2014 by Eu Jin Lok on mining tweets with R presented at Melbourne R Users. Twitter is currently ranked in the top 10 for most-visited website, and averaging 500 million … Continue reading → [Read more...]

Yesterday's release of RcppBDT 0.2.3 lead to an odd build error. If one used at the same time a 32-bit OS, a compiler as recent as g++ 4.7 and the Boost 1.54.0 headers (directly or via the BH package) then the file lexical_cast.hpp barked and failed t... [Read more...]

A new Task View on CRAN will be of anyone who needs to connect R with Web-based applications. The Web Technologies and Services Task View lists R functions and pacakges for reading data from websites (via public APIs or by scraping data from HTML packegs); for interfacing with Cloud-based platforms (... [Read more...]

Kevin Cartier writes: I’ve been happily using R for a number of years now and recently came across Stan. Looks big and powerful, so I’d like to pick an appropriate project and try it out. I wondered if you could point me to a link or document that ... [Read more...]

The double-blinded placebo-controlled randomized trial have long been held as the gold standard in pharmacological research. Unfortunately, this design is impossible to mimic in clinical psychology. Even if we — at best — could try to keep the participants blinded to their treatment allocation, it would be rather hard to blind therapists ... [Read more...]

Check out PDF for Equations And Code to run yourself Introduction: “This Time is different” by Reinhart and Rogoff is an empirical history of financial crises and panics.  It describes many economic events such as; inflation, bubbles, and defaults. The theme that ties these events together is the idea that ... [Read more...]

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Check out PDF for Equations And Code to run yourself Introduction: “This Time is different” by Reinhart and Rogoff is an empirical history of financial crises and panics.  It describes many economic events such as; inflation, bubbles, and defaults. The theme that ties these events together is the idea that ... [Read more...]

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

We've received a number of questions from our users about dealing with the finer details of data sources on the web. Whether you're reading data from local storage such as a csv file, a .Rdata store, or possibly a proprietary file format, you've most likely run into some issues in ... [Read more...]

The 'regex' family of languages and commands is used for manipulating text strings. More specifically, regular expressions are typically used for finding specific patterns of characters and replacing them with others. These technique have a range of applications and R's base installation has powerful regex tools (not to mention add-on ... [Read more...]

A new release of the RcppBDT package is now on CRAN. Several new modules were added; the package can now work on dates, date durations, "ptime" (aka posix time), and timezones. Most interesting may be the fact that ptime is configured to use 96 bi... [Read more...]

A few days ago, the Centers for Medicare and Medicaid Services (CMS) released some unprecedented data on the US healthcare system. The data consists of 9 million rows showing how much each doctor in the US charged Medicare, for what, and how much Medicare paid out. It doesn't quite cover everything (... [Read more...]