In R, the logical || (OR) and && (AND) operators are unique in that they are designed only to work with scalar arguments. Typically used in statements like while(iter __ 1000 && eps __ 0.0001) continue_optimization() the assumption is that the objects on either side (in the example above, iter and eps) are single values (that is, vectors of...
Today I received in the mail a copy of the short book published by edp sciences after the courses we gave last year at the astrophysics summer school, in...
Introduction Last week I announced the first release of MCHT, an R package that facilitates bootstrap and Monte Carlo hypothesis testing. In this article, I will elaborate on some...
Amazing artworks people made in R:See their source code and more arts at:http://www.r-graph-gallery.com/286-antonio-sanchez-dataart/
I love R and I love Shiny. One of the things I really like about shiny is the ease with which you can incorporate other Javascript based tools and...
The culmination of the previous weeks has been preparation for machine learning modeling. At this stage, we have defined the business problem, we’ve explored and understood how the data...
Once upon a time, we at STATWORX used Slack just as a messenger, but than everything changed when emojis came… Since then, we use them for all kinds of...
Shiny modules are short (well, usually short) server and UI functions, that can be connected to each other by a common namespace, and be embedded within a regular Shiny...
I’ve recently added new bloggers to the site, leading to an influx of posts (142 new posts on the site, just last week). And while I love R, I...
Principal components (PC) regression is a common dimensionality reduction technique in supervised learning. The R lab for PC regression in James et al.’s Introduction to Statistical Learning is a...
Manfred te Grotenhuis passed away. He was a respected sociologist, statistician, and teacher. I’ll leave it to others to comment on these achievements. To me, he was my teacher...
A new bugfix release 0.2.5 of RcppCCTZ got onto CRAN this morning – just a good week after the previous release. RcppCCTZ uses Rcpp to bring CCTZ to R....
I’d like to introduce to you the New Zealand Trade Intelligence Dashboard. This is one of the New Zealand government shiny web apps that should have been mentioned in Peter...
¡Ay que ver cómo se estropean los cuerpos! (Pilar, my beloved grandmother) My grandmother was a master of sewing. When she was young, she worked as dressmaker, and her...
Statistics Sunday: Some Psychometrics Tricks in R It's been a long time since I've posted a Statistics Sunday post! Now that I'm moved out of my apartment...
In previous posts (https://statcompute.wordpress.com/2017/01/22/monotonic-binning-with-smbinning-package) and (https://statcompute.wordpress.com/2017/06/15/finer-monotonic-binning-based-on-isotonic-regression), I’ve developed 2 different algorithms for monotonic binning. While the first tends to generate bins with equal densities, the second would define finer...
Having all the R functions, all libraries and any kind of definitions (URL, links, working directories, environments, memory, etc) in one file is nothing new, but sometimes a lifesaver....
This is the second post of a character network analysis of George R. R. Martin’s A Song Of Ice and Fire (ASOIAF) series as well as my first submission...
There are so many beautiful “π” arts everywhere, and I wanted to practice ggplot2 by mimicing those arts further more. Another pi art caught my eye is random walk...
In our wrapr pipe RJournal article we used piping into ggplot2 layers/geoms/items as an example. Being able to use the same pipe operator for data processing steps and for...
From the first time I listened to Radiohead’s The Bends, the band has been my favorite. I was a grad student in England at the time, and I recall...
A new package of ours, RcppNLoptExample, arrived on CRAN yesterday after a somewhat longer-than-usual wait for new packages as CRAN seems really busy these days. As always, a...
Introduction Inspired by a recent post on how to import a directory of csv files at once using purrr and readr by Garrick, in this post we will try achieving...
STATWORX welcomes you to our open workshop “Deep Learning in R and Keras” ! The workshop is designed for advanced R-users who are fluent in importing, processing and manipulating...
Four years ago I referenced the Seinfeld Streak used in an earlier post of regular updates to to the Rcpp Gallery: This is sometimes called Jerry Seinfeld’s secret to...
I stumbled across this beautiful art on Washington Post article, and I wanted to try making the similar art using “digits in pi” myself using R and things I’ve...
My prior post on animated flow in the Delaware River contained the last work I performed on my previous lap top just before it gave up the ghost. When...
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