July, 2019 | R-bloggers

EARLy bird ticket sales end 31 July

July 10, 2019 | Mango Solutions

EARL London 2019 is getting closer! We’ve got a great line up of speakers from a huge range of industries and three fantastic keynote speakers – Helen Hunter – Sainsbury’s, Julia Silge – Stack Overflow and Tim Paulden – ATASS Sports. Our early bird ticket offer is coming to an end on 31 July, ... [Read more...]

Bang Bang – How to program with dplyr

July 10, 2019 | Markus Berroth

Never heard of non-standard evaluation? Then our colleague Markus has the perfect answer for you: Bang Bang! In this blog post, Markus introduces meta-programming when using dplyr. Der Beitrag Bang Bang – How to program with dplyr erschien zuerst auf STATWORX.

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R 3.6.1 is now available

July 10, 2019 | David Smith

On July 5, the R Core Group released the source code for the latest update to R, R 3.6.1, and binaries are now available to download for Windows, Linux and Mac from your local CRAN mirror. R 3.6.1 is a minor update to R that fixes a few bugs. As usual with a ... [Read more...]

Data Visualization with R

July 9, 2019 | R on Methods Bites

How to make the invisible visible was the starting point of Richard Traunmüller’s one-day workshop in the MZES Social Science Data Lab in Fall 2016. This Methods Bites Tutorial by Cosima Meyer provides you with some illustrative examples from Richard’s workshop. What, for instance, do you think the ...

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Data Visualization with R

July 9, 2019 | R on Methods Bites

How to make the invisible visible was the starting point of Richard Traunmüller’s one-day workshop in the MZES Social Science Data Lab in Fall 2016. This Methods Bites Tutorial by Cosima Meyer provides you with some illustrative examples from Richard’s workshop. What, for instance, do you think the ...

[Read more...]

Plotting the columns of a Datatable

July 9, 2019 | Stéphane Laurent

Here is the code of this app: library(shiny) library(shinyBS) library(DT) library(ggplot2) ui [Read more...]

Just Quickly: How to show verbatim inline R code

July 9, 2019 | Blog on Credibly Curious

I’ve recently asked on the Rstudio community page how to make code chunks appear verbatim. Not sure what I mean by this? Well, showing your entire code chunk is something taht comes up when you are teaching people about rmarkdown. One of the issues is that you want to ...

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Measuring feature importance in k-means clustering and variants thereof

July 9, 2019 | R on Datentrang

We present a novel approach for measuring feature importance in k-means clustering, or variants thereof, to increase the interpretability of clustering results. In supervised machine learning, feature importance is a widely used tool to ensure interpretability of complex models. We adapt this idea to unsupervised learning via partitional clustering. Our ...

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CRAN does not validate R packages!

July 9, 2019 | xi'an

A friend called me the other day for advice on how to submit an R package to CRAN along with a proof his method was mathematically sound. I replied with some items of advice taken from my (limited) experience with submitting packages. And with the remark that CRAN would not ...

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Stress Testing Dynamic R/exams Exercises

July 9, 2019 | R/exams

Before actually using a dynamic exercise in a course it should be thoroughly tested. While certain aspects require critical reading by a human, other aspects can be automatically stress-tested in R. Motivation After a dynamic exercise has been developed, thorough testing is recommended before administering the exercise in a student ... [Read more...]

How to Use R in AWS Lambda

July 9, 2019 | Joseph Cha

How to use R in AWS Lambda With AWS Lambda, small and frequent jobs can be done without setting up an instance and keeping it “alive” waiting for requests The post How to Use R in AWS Lambda appeared first on Enhance Data Science.

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Rmd first: When development starts with documentation

July 9, 2019 | Sébastien Rochette

Documentation matters ! Think about future you and others. Whatever is the aim of your script and analyses, you should think about documentation. The way I see it, R package structure is made for that. Let me try to convince you. At use’R 2019 in Tou... [Read more...]

Teach R to read handwritten Digits with just 4 Lines of Code

July 9, 2019 | Learning Machines

What is the best way for me to find out whether you are rich or poor, when the only thing I know is your address? Looking at your neighbourhood! That is the big idea behind the k-nearest neighbour (or KNN) algorithm, where k stands for the number of neighbours to ... [Read more...]

Monotonic Binning Driven by Decision Tree

July 8, 2019 | statcompute

After the development of MOB package (https://github.com/statcompute/MonotonicBinning), I was asked by a couple users about the possibility of using the decision tree to drive the monotonic binning. Although I am not aware of any R package implementing the decision tree with the monotonic constraint, I did ... [Read more...]

Dividend Sleuthing with R

July 8, 2019 | R Views

Welcome to a mid-summer edition of Reproducible Finance with R. Today, we’ll explore the dividend histories of some stocks in the S&P 500. By way of history for all you young tech IPO and crypto investors out there: way back, a long time ago in the dark ages, companies ...

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More on those stepped-wedge design assumptions: varying intra-cluster correlations over time

July 8, 2019 | Keith Goldfeld

In my last post, I wrote about within- and between-period intra-cluster correlations in the context of stepped-wedge cluster randomized study designs. These are quite important to understand when figuring out sample size requirements (and models for analysis, which I’ll be writing about soon.) Here, I’m extending the constant ...

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Complexity is a source of income in open source ecosystems

July 8, 2019 | Derek Jones

I am someone who regularly uses R, and my interest in programming languages means that on a semi-regular basis spend time reading blog posts about the language. Over the last year, or so, I had noticed several patterns of behavior, and after reading a recent blog post things started to ... [Read more...]

R/exams @ useR! 2019

July 8, 2019 | R/exams

Pre-conference tutorial about R/exams at useR! 2019 (The R User Conference) in Toulouse: Slides, example code, and links to further information. Tutorial at useR! 2019 Today, the pre-conference tutorials kick off this... [Read more...]