May 2018

Elegant regression results tables and plots in R: the finalfit package

May 16, 2018 | Ewen Harrison

The finafit package brings together the day-to-day functions we use to generate final results tables and plots when modelling. I spent many years repeatedly manually copying results from R analyses and built these functions to automate our standard healthcare data workflow. It is particularly useful when undertaking a large study ...

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How to make a generic stat in ggplot2

May 15, 2018 | Code R

For a while now I’ve been thinking that, yes, ggplot2 is awesome and offers a lot of geoms and stats, but it would be great if it could be extended with new user-generated geoms and stats. Then I learnt that ggplot2 actually has a pretty great extension system so ...

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Cleaning up tables

May 15, 2018 | R on Abhijit Dasgupta

Context One of things I have to do quite often is create tables for papers and presentations. Often the “Table 1” of a paper has descriptives about the study, broken down by subgroups. For presentation purposes, it doesn’t look good (to me, at least) that the name of each subgroup ... [Read more...]

Enterprise Dashboards with R Markdown

May 15, 2018 | R Views

This is a second post in a series on enterprise dashboards. See our previous post, Enterprise-ready dashboards with Shiny Databases. We have been living with spreadsheets for so long that most office workers think it is obvious that spreadsheets generated with programs like Microsoft Excel make it easy to understand ...

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Our Package template to design a prod-ready Shiny application

May 15, 2018 | Vincent GUYADER

In this article, I will introduce the approach we use at ThinkR for Shiny applications we design. This is a relatively strict framework but designed to simplify our life and guarantee to deliver a “prod ready” application (whether it is launched locally, on shinyserver, Rconnect or via ShinyProxy with docker). ...

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Using recurrent neural networks to segment customers

May 15, 2018 | tvladeck

Understanding consumer segments is key to any successful business. Analytically, segmentation involves clustering a dataset to find groups of similar customers. Traditional approaches are often limited to certain data structures. Breaking out of these restrictions has been one of our top priorities since starting the company.

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Stouffer’s meta-analysis with weight and direction effect in R

May 15, 2018 | fabiomarroni

I often have to perform meta-analysis of past experiments for which the only info I have is the fold change and the p-value (of any measure you may imagine: species richness, gene expression, depth of coverage, plates of carbonara eaten in 5 minutes, everything). The hardest thing to find out for ... [Read more...]

grconvertX and grconvertY

May 15, 2018 | aghaynes

These two functions are unbelievably useful for positioning graphical elements (text, axes, labels, …) in R. They allow one to convert coordinates between various different formats. For instance, you can convert your user coordinate (say 5 where x ranges from 0 to 200) to normalized device coordinates (proportional distance across the device) and vice ...

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Create your Machine Learning library from scratch with R ! (2/5) – PCA

May 15, 2018 | Antoine Guillot

This is this second post of the “Create your Machine Learning library from scratch with R !” series. Today, we will see how you can implement Principal components analysis (PCA) using only the linear algebra available in R. Previously, we managed to implement linear regression and logistic regression from scratch and ...

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DALEX @ eRum 2018

May 15, 2018 | smarterpoland

DALEX invasion has started with the workshop and talk @ eRum 2018. Find workshop materials at DALEX: Descriptive mAchine Learning EXplanations. Tools for exploration, validation and explanation of complex machine learning models (thanks Mateusz Staniak for having the second part of the workshop). And my presentation Show my your model 2.0! (thanks go ... [Read more...]

Turn That Heartbeat Over Again: comparing wrist and chest-strap HRM

May 15, 2018 | quantixed

As a geek, the added bonus of exercise is the fun that you can have with the data you’ve generated. A recent conversation on Twitter about the accuracy of wrist-based HRMs got me thinking… how does a wrist-based HRM compare with a traditional chest-strap HRM? Conventional wisdom says that ...

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Time Series of the World, Unite!

May 15, 2018 | usefulr

The R ecosystem knows a ridiculous number of time series classes. So, I decided to create a new universal standard that finally covers everyone’s use case… Ok, just kidding! tsbox, now freshly on CRAN, provides a set of tools that are agnostic towards existing time series classes. It is ...

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Getting into the Rhythm: the euRovision sweepstake

May 15, 2018 | Mango Solutions

Laura Swales, Marketing and Events Assistant Another month, another sweepstake to raise money for the Bath Cats & Dogs home! This time, we picked the Eurovision so...

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The Pleasing Ratio Project

May 15, 2018 | @aschinchon

Music is a world within itself, with a language we all understand (Sir Duke, Stevie Wonder) This serious man on the left is Gustav Theodor Fechner, a German philosopher, physicist and experimental psychologist who lived between 1801 and 1887. To be honest, I don’t know almost anything of his life or ...

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Visualisation of Fantasy Points

May 14, 2018 | Analysis of AFL

Recently I was on twitter and saw this tweet here. Being a Connor Blakely fan I thought to myself I wonder if those are actualy good odds and if I could visualise this. So what is the theme of the thread, well it seems as though Chris and SgtButane think ...

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Workaround for tidyr::spread with duplicate row identifiers

May 14, 2018 | Digital Age Economist on Digital Age Economist

The problem The tidyverse api is one the easiest APIs in R to follow - thanks the concept of grammer based code. But every now and again you come across an error that boggles your mind, my personal one is the error spread delivers when I have no ind... [Read more...]

icon: web icons for rmarkdown

May 14, 2018 | rOpenSci - open tools for open science

Icons in R The icon package provides a convenient interface for adding icons from popular web fonts to R Markdown documents. The project began at rOpenSci OzUnconf 2017, and was developed by Mitchell O’Hara-Wild, Earo Wang and Timothy Hyndman. The package currently supports icons from Font Awesome, Academicons, and ionicons. ...

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CHAID and R – When you need explanation – May 15, 2018

May 14, 2018 | Chuck Powell

A modern data scientist using R has access to an almost bewildering number of tools, libraries and algorithms to analyze the data. In my next two posts I’m going to focus on an in depth visit with CHAID (Chi-square automatic interaction detection). The title should give you a hint ... [Read more...]

fruit: Image-Based Systems of Linear Equations (Numeric)

May 14, 2018 | R/exams

Exercise template for solving a system of three linear equations (numeric answer) with a problem description based on shuffled images. Name: fruit Type: num Related: fruit2 Description: A system of three linear equations has to be solved and the solution has to be entered into a fourth equation. However, the ... [Read more...]

fruit2: Image-Based Systems of Linear Equations (Single-Choice)

May 14, 2018 | R/exams

Exercise template for solving a system of three linear equations (single-choice) with a problem description based on shuffled images. Name: fruit2 Type: schoice Related: fruit Description: A system of three linear equations has to be solved and the solution has to be entered into a fourth equation. However, the system ... [Read more...]

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

May 2018

Elegant regression results tables and plots in R: the finalfit package

How to make a generic stat in ggplot2

Cleaning up tables

Enterprise Dashboards with R Markdown

Our Package template to design a prod-ready Shiny application

Using recurrent neural networks to segment customers

Stouffer’s meta-analysis with weight and direction effect in R

grconvertX and grconvertY

Create your Machine Learning library from scratch with R ! (2/5) – PCA

DALEX @ eRum 2018

Turn That Heartbeat Over Again: comparing wrist and chest-strap HRM

Time Series of the World, Unite!

Getting into the Rhythm: the euRovision sweepstake

The Pleasing Ratio Project

Visualisation of Fantasy Points

Workaround for tidyr::spread with duplicate row identifiers

icon: web icons for rmarkdown

CHAID and R – When you need explanation – May 15, 2018

fruit: Image-Based Systems of Linear Equations (Numeric)

fruit2: Image-Based Systems of Linear Equations (Single-Choice)

May 2018

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