October 2018

RcppTOML 0.1.5: Small extensions

October 31, 2018 | Thinking inside the box

Coming on the heels of last week’s RcppTOML 0.1.4 release bringing support for TOML v0.5.0, we have a new release 0.1.5 on CRAN with better encoding support as well as support for the time type. RcppTOML brings TOML to R. TOML is a file format that... [Read more...]

Analysing UK Traffic Trends with PCA

October 31, 2018 | Michael Grogan

CategoriesVisualizing Data Tags Data Visualisation Principal Component Analysis R Programming Tips & Tricks The PCA (also known as Principal Component Analysis) is quite a handy tool for solving unsupervised learning problems. In other words, PCA can allow us to group unsupervised data into meaningful clusters, and visualize this in a way ...
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Parameter Estimation of Binned Data

October 31, 2018 | Dr. Jack Davis

Section 1: Introduction – The Problem of Binned Data Hypothetically, say you’re given data like this in Table 1 below, and you’re asked to find the mean: Group Frequency 0 to 25 114 25 to 50 76 50 to 75 58 75 to 100 51 100 to 250 140 250 to 500 107 500 to 1000 77 1000 to 5000 124 5000 or more 42 Table 1: Example Binned Data.Border cases go to the lower bin. The ...
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Copula Sampling

October 31, 2018 | LeaRning Stats

Introduction I was reading about different ways to sample from distributions, and one that caught my eye was based on copulas. There is an answer here, but there seemed to be enough details left to the reader that I wanted to just do it. One variable example To start, let’...
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Communicating results with R Markdown

October 31, 2018 | R Views

In my training as a consultant, I learned that long hours of analysis were typically followed by equally long hours of preparing for presentations. I had to turn my complex analyses into recommendations, and my success as a consultant depended on my ability to influence decision makers. I used a ...
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How to Highlight 3D Brain Regions

October 31, 2018 | Matt.0

Recently, I was reading Howard et. al., (2018) “Genome-wide meta-analysis of depression in 807,553 individuals identifies 102 independent variants with replication in a further 1,507,153 individuals” and saw a really cool 3D visualization of highlighted brain regions associated with depression: Source: https://goo.gl/7rY5KVAfter an exhaustive search I couldn’t find any ...
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Spooky! Gravedigger in R

October 31, 2018 | David Smith

Need something to distract the kids while they're waiting to head out Trick-or-Treating? You could have them try out a Creepy Computer Game in R! Engineer and social scientist Dr Peter Provost translated one of the old BASIC games from the classic book Creepy Computer Games into R: just have ...
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How to run R from the Task Scheduler

October 31, 2018 | Andrew Treadway

In a prior post, we covered how to run Python from the Task Scheduler on Windows. This article is similar, but it’ll show how to run R from the Task Scheduler, instead. Similar to before, let’s first cover how to R from the command line, as knowing this ...
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Thoughts on the NHS-R conference

October 30, 2018 | HighlandR

It’s been a few weeks since the first NHS-R conference was held in Birmingham. I co-presented a couple of workshops with Neil Pettinger on visualising patient flow, covering the following importing from Excel (and connecting to SQ... [Read more...]
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