490 search results for "evaluation"

CFP: 13th Australasian Data Mining Conference (AusDM 2015)

February 9, 2015
By
CFP: 13th Australasian Data Mining Conference (AusDM 2015)

The 13th Australasian Data Mining Conference (AusDM 2015) Sydney, Australia, 8-9 August 2015 co-located with SIGKDD’15 URL: http://ausdm15.ausdm.org/ Join us on LinkedIn: http://www.linkedin.com/groups/AusDM-4907891 The Australasian Data Mining Conference has established itself as the premier Australasian meeting for both practitioners and … Continue reading →

Read more »

Hierarchical log odds model example

February 8, 2015
By
Hierarchical log odds model example

I am working through Bayesian Approaches to Clinical Trials and Health-Care Evaluation (David J. Spiegelhalter, Keith R. Abrams, Jonathan P. Myles) (referred to as BACTHCE from here on). In chapter three I saw an example (3.13) where I wanted to d...

Read more »

Easy error propagation in R

January 22, 2015
By

In a previous post I demonstrated how to use R’s simple built-in symbolic engine to generate Jacobian and (pseudo)-Hessian matrices that make non-linear optimization perform much more efficiently. Another related application is Gaussian error propagation. Say you have data from a set of measurements in variables x and y where you know the corresponding measurement errors (dx...

Read more »

An Introduction to Change Points (packages: ecp and BreakoutDetection)

January 21, 2015
By
An Introduction to Change Points (packages: ecp and BreakoutDetection)

A forewarning, this post is me going out on a limb, to say the least. In fact, it’s a post/project … Continue reading →

Read more »

Building a choropleth map of Italy using mapIT

January 19, 2015
By
Building a choropleth map of Italy using mapIT

In the R environment, different packages to draw maps a

Read more »

Using the microbenchmark package to compare the execution time of R expressions

January 14, 2015
By
Using the microbenchmark package to compare the execution time of R expressions

I recently learned about the microbenchmark package while browsing through Hadley’s advanced R programming book. I’ve done some quick benchmarking using system.time() in a for loop and taking the average, but the microbenchmark function in the microbenchmark package makes this much easier. Hadley gives the example of taking the square root of a vector using the built-in...

Read more »

Balancing the Load | What’s New in RStudio Server Pro?

January 13, 2015
By
Balancing the Load | What’s New in RStudio Server Pro?

As R users know, we’re continuously improving the RStudio IDE.  This includes RStudio Server Pro, where organizations who want to deploy the IDE at scale will find a growing set of features recently enhanced for them. If you’re not already familiar with RStudio Server Pro here’s an updated summary page and a comparison to RStudio

Read more »

Job Announcement: Up to 4 Post-doctoral positions

January 3, 2015
By

Job Announcement Up to 4 Post-doctoral positions on com

Read more »

Measuring the execution time of recommender systems in R

December 25, 2014
By
Measuring the execution time of recommender systems in R

This post is different from all others you’ve seen so far on this site. This is actually not a proper post, but a respond to a comment from my previous post Recommender Systems 101 – a...

Read more »

Recommender Systems 101 – a step by step practical example in R

December 24, 2014
By
Recommender Systems 101 – a step by step practical example in R

Every one of us is unique! …You are unique!  there are sooo many people different from you… but at the same time, there are also A LOT that are damned similar to you… exhibiting the...

Read more »

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)