I'll be in the UK next week doing three talks in three days: First, I'll be giving a talk at the London R-Ladies meetup on Monday October 3rd with perhaps the best title yet: Whose Scat Is That? An 'Easil...
Wordclouds are one of the most visually straightforward, compelling ways of displaying text info in a graph. Of course, we have a lot of web pages (and even apps) that, given...
Wonderful, indeed, to have an RStan book in Japanese: Kentarou Matsuura. 2016. Bayesian Statistical Modeling Using Stan and R. Wonderful R Series, Volume 2. Kyoritsu Shuppan Co., Ltd. Google...
By Carson Sievert, lead Plotly R developer I’m excited to announce that plotly’s R package just sent its first CRAN update in nearly four months. To install the update,...
R’s boxplot function has a lot of useful parameters allowing us to change the behaviour and appearance of the boxplot graphs. In this exercise we will try to use...
We can use unsupervised machine learning to identify which drugs are associated with which adverse events. Specifically, machine learning can help us to create clusters based on gender, age,...
I’m sure many of my fellow Mexicans will remember the historically ill-advised (to say the least) decision by our President to invite Donald Trump for a meeting. Talking to some...
For quite some time now I have been using R’s caret package to choose the model for forecasting time series data. The approach is satisfactory as long as the...
Anyone that follows US politics will be aware of the tremendous changes and volatility that has struck the US political landscape in the past year. In this post, I...
FileTable has been around now for quite some time and and it is useful for storing files, documents, pictures and and binary files in a designated SQL Server table...
Radiant is a platform-independent browser-based interface for business analytics in R. I first introduced Radiant through R-bloggers on 5/2/2015 and, according to Dean Attali, the post was reasonably popular....
A new experimental package is now on the ghrr drat. It is named tint which stands for Tint Is Not Tufte. It provides an alternative for Tufte-style html...
Abstract We perform a social experiment to investigate, if zombie related twitter posts can used as a reliable indicator for an early warning system. We show how such a system...
If you are on Windows 10, no doubt you have heard that Microsoft included the bash shell in its 2016 Windows 10 anniversary update. What you may not know...
In this post we’ll quickly show how to create radial stacked ara charts in plotly. We’ll use the AirPassengers dataset. Inspired by Mike Bostocks post: http://bl.ocks.org/mbostock/3048740 Radial Stacked...
After having carefully followed the online official Shiny tutorial, I decided to make a quick try at making my very first Shiny App. I should say that I found...
Python, R, Qt, peewee, bokeh, pandas, SQLite plus couple of sleepless nights and here you are a сute app for the environmental monitoring needs )))Main window of the application
Being able to visualize information through plots is essential for a statistic analysis. A simple and clean graph can explain much more than words. In this set of exercises you will test...
Slides have now been posted for many of the talks given at the recent Effective Applications of the R Language (London) conference, and I thought I'd highlight a few...
Arthur C. Clarke famously stated that “any sufficiently advanced technology is indistinguishable from magic.” No current technology embodies this statement …Continue reading →
This year’s EARL conference in London was another huge success. In this blogpost we revisit some of the presentations from Day 1. In stream 1 the conference started off...
A straightforward but probabilistic riddle this week in the Riddler, which is to find the expected order of integer i when the sequence {1,2,…,n} is partitioned at random into...
We’ve just released Shiny Server and Shiny Server Pro 1.4.6. Relative to 1.4.2, our previously blogged-about version, the 1.4.6 release primarily includes bug fixes, and mitigations for low-severity security issues found by penetration...
It came to my attention that size of XDF (external data frame) file can change drastically based on the compute context and environment. When testing the output of a...
by Brandon Rohrer, Principal Data Scientist, Microsoft R or Python? Torch or TensorFlow? (or MXNet or CNTK)? Spark or map-reduce? When we're getting started on a project, the mountain...
Have you ever watched a livestream? Have you ever wondered what the actual minute to minute of doing data science looks like? Do you wonder if other R users...
R Markdown is a great tool to make research results reproducible. However, in scientific research papers or reports, tables and figures usually need to be numbered and referenced. Unfortunately,...
The paired samples t test is used to check if there are any differences in the mean of the same sample at two different time points. For example a...
Hadley Wickham, co-author (with Garrett Grolemund) of R for Data Science and RStudio's Chief Scientist, has focused much of his R package development on the un-sexy but critically important...
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