September 2018

Data needs for forecasting influenza pandemics

September 16, 2018 | - r

Last week, I attended a Pandemic Influenza Exercise at the US CDC. To be clear, there is NOT a pandemic occuring right now, but the CDC ran this exercise where hundreds of staff members and outside observers and participants came together to practice g... [Read more...]

Parameterizing with bquote

September 16, 2018 | John Mount

One thing that is sure to get lost in my long note on macros in R is just how concise and powerful macros are. The problem is macros are concise, but they do a lot for you. So you get bogged down when you explain the joke. Let’s try ... [Read more...]

Statistics Sunday: What Should I Read Next?

September 16, 2018 |

When You Need a New Book to Read I log all of my books on Goodreads. On top of that, whenever I hear about a new book I have to read, I add it on Goodreads, so I remember it. Of course, this means my Goodreads bookshelves are a little ... [Read more...]

Data Wrangling with dplyr – Part 3

September 15, 2018 | Rsquared Academy Blog

Introduction In the previous post, we learnt to combine tables using dplyr. In this post, we will explore a set of helper functions in order to: extract unique rows rename columns sample data extract columns slice rows arrange rows compare tables extract/mutate data using predicate functions count observations for ...
[Read more...]

Simple Parallel Processing in R

September 15, 2018 | Daniel Oehm

I recently purchased a new laptop with an Intel i7-8750 6 core CPU with multi-threading meaning I have 12 logical […] The post Simple Parallel Processing in R appeared first on Daniel Oehm | Gradient Descending. [Read more...]

Streamtubes in Plotly with Python

September 15, 2018 | Plotly Blog

???? Before we introduce this seriously cool visualization, we’d like to announce that plotly.py has surpassed 5 million downloads! Thank you for helping us reach this milestone! ???? Once Upon a Time ???? It was the year 2008. If you wanted to create 3-D plots for interactive scientific data visualization, the Mayavi Python ...
[Read more...]

Streamtubes in Plotly with Python

September 15, 2018 | Plotly Blog

???? Before we introduce this seriously cool visualization, we’d like to announce that plotly.py has surpassed 5 million downloads! Thank you for helping us reach this milestone! ???? Once Upon a Time ???? It was the year 2008. If you wanted to create 3-D plots for interactive scientific data visualization, the Mayavi Python ...
[Read more...]

Thunderstorm forecasting with GAMs

September 15, 2018 | Achim Zeileis

Boosted binary generalized additive models (GAMs) with stability selection and corresponding MCMC-based credibility intervals are discussed in a new MWR paper as a probabilistic forecasting method for the occurrence of thunderstorms. ...
[Read more...]

On “Competition” in the R Ecosystem

September 15, 2018 | John Mount

I’ve been thinking a bit on “competition” in the R ecosystem. I guess the closest I can come to a fair and coherent view on “competition” in the R ecosystem is some variation of the following. I, of course, should not be treating things as a competition. We are ... [Read more...]

How to Avoid For Loop in R

September 15, 2018 | statcompute

A FOR loop is the most intuitive way to apply an operation to a series by looping through each item one by one, which makes perfect sense logically but should be avoided by useRs given the low efficiency. In R, there are two ways to implement the same functionality of ... [Read more...]

Better R Code with wrapr Dot Arrow

September 15, 2018 | John Mount

Our R package wrapr supplies a "piping operator" that we feel is a real improvement in R code piped-style coding. The idea is: with wrapr‘s "dot arrow" pipe "%.__%" the expression "A %.__% B" is treated very much like "{. % B(.)" as a … Continue reading Better R Code with wrapr Dot Arrow [Read more...]

Access to climate reanalysis data from R

September 15, 2018 | R on Dominic Royé

1 Introduction 2 NCEP 2.1 Packages 2.2 Data download 2.3 Monthly average 2.4 Visualization 3 ERA-Interim 3.1 Installation 3.2 Connection and download with the ECMWF API 3.3 Processing ncdf 4 Update for accessing ERA-5 A friend advised me to introduce R levels as categories. An idea that I now add to each blog post. There are three levels: elementary, intermediate, and ...
[Read more...]

Data Entry with R’s Text Editor

September 14, 2018 | George Mount

Excel’s greatest strength — and its greatest weakness — is the ease of users to manipulate the basic data. Done well and the capability affords flexibility; done poorly and you are left with hard-coded cells and hidden Column A’s. With R you approach the data differently by writing each step ... [Read more...]
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