May 2016

Harvesting more Canadian climate data

May 24, 2016 | Gavin L. Simpson

A while back I wrote some code to download climate data from Government of Canada’s historical climate/weather data website for one of our students. In May this year (2016) the Government of Canada changed their website a little and the API code that responded to requests had changed URL ... [Read more...]

Interactive Heat Maps for R

May 23, 2016 | Sahir Bhatnagar

In every statistical analysis, the first thing one should do is try and visualise the data before any modeling. In microarray studies, a common visualisation is a heatmap of gene expression data. In this post I simulate some gene expression data and visualise it using the heatmaply package in R ... [Read more...]

Understanding Bayesian A/B testing (using baseball statistics)

May 23, 2016 | David Robinson

Previously in this series Understanding the beta distribution (using baseball statistics) Understanding empirical Bayes estimation (using baseball statistics) Understanding credible intervals (using baseball statistics) Understanding the Bayesian approach to false discovery rates (using baseball statistics) Who is a better batter: Mike Piazza or Hank Aaron? Well, Mike Piazza has a ... [Read more...]

Feather: fast, interoperable data import/export for R

May 23, 2016 | David Smith

Unlike most other statistical software packages, R doesn't have a native data file format. You can certainly import and export data in any number of formats, but there's no native "R data file format". The closest equivalent is the saveRDS/loadRDS function pair, which allows you to serialize an R ... [Read more...]

Introduction to R for Data Science :: Session 3

May 23, 2016 | The Exactness of Mind

Welcome to Introduction to R for Data Science Session 3! The course is co-organized by Data Science Serbia and Startit. You will find all course material (R scripts, data sets, SlideShare presentations, readings) on these pages. Welcome to the third session of Introduction to R for Data Science! Check out the ... [Read more...]

Principal Components Regression, Pt. 2: Y-Aware Methods

May 23, 2016 | Nina Zumel

In our previous note, we discussed some problems that can arise when using standard principal components analysis (specifically, principal components regression) to model the relationship between independent (x) and dependent (y) variables. In this note, we present some dimensionality reduction techniques that alleviate some of those problems, in particular what ...
[Read more...]

Computational Genomics Course in Berlin

May 23, 2016 | altuna

Berlin Institute for Medical Systems Biology is organizing a computational genomics course and R programming will be used for most of the practical sessions. The course will cover basic statistics, programming and basic concepts in next-generation sequencing as well as it is applications such as RNA-seq, ChIP-seq, DNA-seq and metagenomics ... [Read more...]

Computational Genomics Course in Berlin

May 23, 2016 | altuna

Berlin Institute for Medical Systems Biology is organizing a computational genomics course and R programming will be used for most of the practical sessions. The course will cover basic statistics, programming and basic concepts in next-generation... [Read more...]

5-min How-to on New Google Forms

May 23, 2016 | data_steve

googleformr is an API to Google Forms, allowing users to POST data securely to Google Forms without needing authentication or permissioning. Google Forms is a robust tool for collecting, analyzing, and storing data gathered through a webform on Googl... [Read more...]

Setting Up New R Notebook

May 23, 2016 | data_steve

Today Noam Ross’ tweet about his experience with the new R Notebooks from RStudio got me excited. Can not find a GIF to properly convey the joy + wreckage of me messing around with the internals of the new #rstats notebook stuff.— Noam Ross (@noamross) May 23, 2016 Couple that with the release ... [Read more...]

5-min How-to on New Google Forms

May 23, 2016 | data_steve

googleformr is an API to Google Forms, allowing users to POST data securely to Google Forms without needing authentication or permissioning. Google Forms is a robust tool for collecting, analyzing, and storing data gathered through a webform on Google Drive. Since googleformr was created, Google Form has updated its user-experience ... [Read more...]

Survival plots have never been so informative

May 22, 2016 | Marcin Kosiński

Hadley Wickham’s ggplot2 version 2.0 revolution, at the end of 2015, triggered many crashes in dependent R packages, that finally led to deletions of few packages from The Comprehensive R Archive Network. It occured that survMisc package was removed from CRAN on 27th of January 2016 and R world remained helpless in ... [Read more...]

Chart MakeoveR

May 22, 2016 | HighlandR

Working out with (geom) dumbbells - The following chart appeared on my Twitter feed last week: There is quite a lot of information on there, but bar charts are not perhaps the best choice for visualising data over time. This is not to be ...
[Read more...]

Chart MakeoveR

May 22, 2016 | HighlandR

Working out with (geom) dumbbells - The following chart appeared on my Twitter feed last week: There is quite a lot of information on there, but bar charts are not perhaps the best choice for visualising data over time. This is not to be ... [Read more...]

occupancy rules

May 22, 2016 | xi'an

While the last riddle on The Riddler was rather anticlimactic, namely to find the mean of the number Y of empty bins in a uniform multinomial with n bins and m draws, with solution [which still has a link with e in that the fraction of empty bins converges to 1...
[Read more...]

TenK

May 22, 2016 | Jasper Ginn

TenK is an R package aimed at simplifying the collection of SEC 10-K annual reports. It contains the following features: Robust scraping and parsing of reports using the rvest package Resolves FTP urls to their HTML counterparts, which increases the speed of retrieving the documents and adds a lot of ...
[Read more...]

BCEA 2.2-3 is out

May 22, 2016 | Gianluca Baio

I think the newest release of BCEA, our R package to standardise and post-process the output of a health economic model, is now available from CRAN $-$ in fact, the source code is also available here. The package is rather stable, so the changes aren't many, but the few ones ... [Read more...]
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