Extracting datasets from excel files in a zipped folder

October 30, 2014
By
Extracting datasets from excel files in a zipped folder

The title of the post is a bit long, but that’s the problem I was facing this morning: importing dataset from files, online. I mean, it was not a “problem” (since I can always download, and extract manually the files), more a challenge (I should be able to do it in R, directly). The files are located on ressources-actuarielles.net, in a...

Read more »

Milestone: 6000 packages on CRAN

October 29, 2014
By
Package_per_time

Another 1000 packages were added to CRAN and this time in less than 12 months. Today (2014-10-29) on The Comprehensive R Archive Network (CRAN) package page:"Currently, the CRAN...

Read more »

Integrate R into applications with DeployR Open

October 29, 2014
By
Integrate R into applications with DeployR Open

If you ever find you need to embed the results of R functions — data, charts, or even a single calculation — into other applications, then you might want...

Read more »

Getting old in baseball

October 29, 2014
By
Getting old in baseball

We look at how batting average changes with age The post Getting old in baseball appeared first on Decision Science News.

Read more »

Online index of plots and corresponding R scripts

Online index of plots and corresponding R scripts

Dear Readers of The Chemical Statistician, While working in my job at the British Columbia Cancer Agency, I learned about a wonderful new data visualization resource from a colleague who works at...

Read more »

A Walk-Forward Attempt on FAA

October 29, 2014
By
A Walk-Forward Attempt on FAA

So in the first post about FAA, I was requested to make a walk-forward test of FAA. While the results … Continue reading →

Read more »

LA R Meetup – November 11: Highlights from the useR! 2014 conference – Part 2

October 29, 2014
By

At this meetup, five more LA R meetup members will present short talks of what...

Read more »

Don’t Worry _Too_ Much About The 2014 Gallup Crime Poll

October 29, 2014
By
Don’t Worry _Too_ Much About The 2014 Gallup Crime Poll

Gallup released the results of their annual “Crime” poll in their Social Poll series this week and spent much time highlighting the fact that “cyber” was at the...

Read more »

R Class for Wildfire Scientists

October 29, 2014
By
R Class for Wildfire Scientists

This entry is part 14 of 14 in the series Using RMazama Science has just finished creating class materials on using R for the AirFire team at the USFS...

Read more »

reliable ABC model choice via random forests

October 28, 2014
By
reliable ABC model choice via random forests

After a somewhat prolonged labour (!), we have at last completed our paper on ABC model choice with random forests and submitted it to PNAS for possible publication. While...

Read more »

Type III tests and R

October 28, 2014
By

by Terry M. Therneau Ph.D. Faculty, Mayo Clinic About a year ago there was a query about how to do "type 3" tests for a Cox model on the...

Read more »

analyze the social security administration’s national beneficiary survey (nbs) with r

October 28, 2014
By

above and beyond its namesake roosevelt-era retirement safety net, the social security administration oversees two federal programs - social security disability insurance and supplemental security insurance.  currently covering more...

Read more »

Flexible Beta Modeling

October 27, 2014
By
Flexible Beta Modeling

Read more »

Visualizing the History of Epidemics

October 27, 2014
By
Visualizing the History of Epidemics

I really like National Geographic. Their magazine is great, their television documentaries are done well and they helped give me a lifelong love of maps. They generate very good...

Read more »

Create Fashion Fingerprints with R

October 27, 2014
By
Create Fashion Fingerprints with R

How do you summarize fashion? For New York Fashion Week, the New York Times used the idea of "Fashion Fingerprints", distilling a designer's collections into small fragments highlighting the...

Read more »

Introducing Stepwise Correlation Rank

October 27, 2014
By
Introducing Stepwise Correlation Rank

So in the last post, I attempted to replicate the Flexible Asset Allocation paper. I’d like to offer a thanks … Continue reading →

Read more »

Size Doesn’t Matter

October 26, 2014
By
Size Doesn’t Matter

An invisible red thread connects those destined to meet, regardless of time, place or circumstances. The thread may stretch or tangle, but never break (Ancient Chinese Legend) I use...

Read more »

Probable Points and Credible Intervals, Part 1

October 26, 2014
By
Probable Points and Credible Intervals, Part 1

After having broken the Bayesian eggs and prepared your model in your statistical kitchen the main dish is the posterior. The posterior is the posterior is the posterior, given...

Read more »

Syrian Refugee Informal Settlement Animation

October 26, 2014
By
Syrian Refugee Informal Settlement Animation

This is an animation of the growth in Syrian refugee informal camp settlements in Lebanon over the past several years.  You can see from the .gif that the growth...

Read more »

Combating Multicollinearity by Asking the Right Questions and Uncovering Latent Features

October 26, 2014
By
Combating Multicollinearity  by Asking the Right Questions and Uncovering Latent Features

Overview. When responding to questions about brand perceptions or product feature satisfaction, consumers construct a rating  by relying on their overall satisfaction with the brand or product plus some general...

Read more »

Quarterback Completion Heatmap Using dplyr

October 26, 2014
By
Quarterback Completion Heatmap Using dplyr

Several months ago, I found Bryan Povlinkski's (really nicely cleaned) dataset with 2013 NFL play-by-play information, based on data...

Read more »

ALUES: Agricultural Land Use Evaluation System, R package

October 26, 2014
By

Authors:Arnold R. Salvacion                                                                       [email protected] Analysis and Visualization using R (blog)                                          Al-Ahmadgaid B. Asaad (maintainer)[email protected] Land Use Evaluation System (ALUES) is an R package that...

Read more »

Visualizing (generalized) linear mixed effects models with ggplot #rstats #lme4

October 26, 2014
By
Visualizing (generalized) linear mixed effects models with ggplot #rstats #lme4

In the past week, colleagues of mine and me started using the lme4-package to compute multi level models. This inspired me doing two new functions for visualizing random effects...

Read more »

Tuning Laplaces Demon III

October 26, 2014
By
Tuning Laplaces Demon III

This is the third post with LaplacesDemon tuning. same problem, different algorithms. For introduction and other code see this post. The current post takes algorithms Independence Metropolis to Reflective...

Read more »

Model Segmentation with Recursive Partitioning

October 26, 2014
By
Model Segmentation with Recursive Partitioning

Read more »

Brazilian latest polls and house effects

October 25, 2014
By
Brazilian latest polls and house effects

The latest polls just released tonight are suggesting a numerical tie between Dilma Rousseff (PT) and Aecio Neves (PSDB) considering the limit of the margin of error. Actually, these...

Read more »

Call for participation: AusDM 2014, Brisbane, 27-28 November

October 25, 2014
By
Call for participation: AusDM 2014, Brisbane, 27-28 November

********************************************************* 12th Australasian Data Mining Conference (AusDM 2014) Brisbane, Australia 27-28 November 2014 http://ausdm14.ausdm.org/ ********************************************************* The Australasian Data Mining Conference has established itself as the premier Australasian meeting for...

Read more »

What are the chances of Dilma tomorrow?

October 25, 2014
By
What are the chances of Dilma tomorrow?

Although polling data are the most common source in an electoral campaign, there are also models that use prediction markets data (trade contracts flow) as the source of information...

Read more »

RSQLite 1.0.0

October 25, 2014
By
RSQLite 1.0.0

I’m very pleased to announce a new version of RSQLite 1.0.0. RSQLite is the easiest way to use SQL database from R: library(DBI) # Create an ephemeral in-memory RSQLite...

Read more »