Let's say you are a vampire and you would like to figure out the shortest route to visit the supple necks of N maidens. But, there is only so much time in any night!You can fly from location to location, ignoring barriers.With a few maidens, the problem is ... [Read more...]

Let's say you are a vampire and you would like to figure out the shortest route to visit the supplenecks of N maidens. But, there is only so much time in any night!You can fly from location to location, ignoring barriers.With a few maidens, the problem... [Read more...]

In one of our previous posts (Halloween: An Excuse for Plotting with Icons), we gave a quick tutorial on how to plot using icons using ggplot. A reader, Dr. D. K. Samuel asked in a comment how to use multiple … Continue reading → [Read more...]

I found myself installing the same things over and over again on my VMs, so I decided to pack all my good DSR workbench action into one giant shell script that I could run and walk away from. Below is my markdown file, you can grab the shell scripts at ... [Read more...]

At the PASS Summit in Seattle this week, Microsoft's Jason Wilcox and Gopi Kumar demonstrated a SQL Server 2016 application that embeds R to predict what time you need to leave to catch a flight, given traffic, check-in time, and the likelihood of a flight leaving early or being delayed. The ... [Read more...]

Are you in Montreal and curious about big data? Well here is your chance to attend a session about the same at Concordia University on Tuesday, Nov. 03 at 6:00 pm.www.BigDataUniversity.com, which is an IBM-led initiative is running meetups across North... [Read more...]

I have (sometimes incomplete) data on addresses that looks like this: data [Read more...]

My effort on machine learning with R is now available. [Read more...]

The next meeting at 6.30pm on November 11 will revolve around the subject “data analysis with R”. Experienced R users will present the topics “cluster analysis” and “Hidden Markov models”. It will take place at the Science Park Kassel. The lecture on cluster analysis by Andreas Wygrabek will deal with different ... [Read more...]

A new major release of littler is now available. And for the first time in the nine years since 2006 when Jeff started the effort (which I joined not long after) we are now a CRAN package. This required a rewrite of the build system, foregoing the calls to aclocal, autoheader, ... [Read more...]

There are nice visualizations from chess data: piece movement, piece survaviliy, square usage by player. Sadly not always the authors shows the code/data for replicate the final result. So I wrote some code to show how to do some this great visualizations entirely in R. Just for fun. The ... [Read more...]

One of the best things I like in working at CARD.com is that I am... [Read more...]

As part of the work she's doing for her PhD, Christina has done some (fairly major, I'd say!) review of the literature about prevalence studies on PCOS $-$ that's a rather serious, albeit probably fair to say quite under-researched area. When it came to analysing the data she had collected, ... [Read more...]

As part of the work she's doing for her PhD, Christina has done some (fairly major, I'd say!) review of the literature about prevalence studies on PCOS $-$ that's a rather serious, albeit probably fair to say quite under-researched area. When... [Read more...]

by Joseph Rickert We all "know" that correlation does not imply causation, that unmeasured and unknown factors can confound a seemingly obvious inference. But, who has not been tempted by the seductive quality of strong correlations? Fortunately, it is also well known that a well done randomized experiment can account ... [Read more...]

A big project at my work that I was involved with over the past year was the production of modelled estimates of gross domestic product at the District and City level. There are official statistics at the Regional Council level (16 of them in New Zealand), so the aim of this ... [Read more...]

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R Articles at Simple TalkTwo articles about R posted at the Simple Talk blog in the last few weeks:Visualizing Data with RSQL and R [Read more...]

R Articles at Simple TalkTwo articles about R posted at the Simple Talk blog in the last few weeks:Visualizing Data with RSQL and R [Read more...]

Last week Mango Solutions’ Principal Consultant, Stephanie Locke, presented Analytical Web Services for the RBelgium user group. Check out the full recording of her presentation here: Analytical Web Services : In your day job, you might build some awesome bits … Continue reading → [Read more...]