Tag: Twitter

Feed: R-bloggers. Author: Posts on R Lover ! a programmer. So, a programmer, a frequentist, and a bayesian walk into a bar. No this postisn’t really on the path to some politically incorrect stereotypical humor. Juttrying to make it fun and catch your attention. As the title implies this postis really about applying the differing viewpoints and methodologies inherent inthose approaches to statistics. To be honest I’m not even going to spend a lottime on the details of methods, I want to focus on the conclusions each of thesepeople would draw after analyzing the same data using their favored methods.This ... Read More

Feed: R-bloggers. Author: R Views. Andrie de Vries is the author of “R for Dummies” and a Solutions Engineer at RStudio Phillip (Armand) Bester is a medical scientist, researcher, and lecturer at the Division of Virology, University of the Free State, and National Health Laboratory Service (NHLS), Bloemfontein, South Africa In this post we complete our series on analysing the HIV pandemic in Africa. Previously we covered the bigger picture of HIV infection in Africa, and a pipeline for drug resistance testing of samples in the lab. Then, in part 3 we saw that sometimes the same patient’s genotype must ... Read More

Feed: R-bloggers. Author: . As I was preparing some graphics for a presentation recently, I started digging into some of the different color palette options. My motivation was entirely about creating graphics that weren’t too visually overwhelming, which I found the default “rainbow” palette to be. But as the creators of the viridis R package point out, we also need to think about how people with colorblindness might struggle with understanding graphics. If you create figures in R, I highly recommend checking it out at the link above! To leave a comment for the author, please follow the link and ... Read More

Feed: R-bloggers. Author: chris2016. Principal component analysis (PCA) is very useful for doing some basic quality control (e.g. looking for batch effects) and assessment of how the data is distributed (e.g. finding outliers). A straightforward way is to make your own wrapper function for prcomp and ggplot2, another way is to use the one that comes with M3C (https://bioconductor.org/packages/devel/bioc/html/M3C.html) or another package. M3C is a consensus clustering tool that makes some major modifications to the Monti et al. (2003) algorithm so that it behaves better, it also provides functions for data visualisation. Let’s have a go on an example cancer ... Read More

Feed: R-bloggers. Author: Colin Fay. How to build a CLI for R, with npm. Background This blog post was triggered by a discussion on Twitter with MartinSkarzynski,who was looking for a way to build a CLI that launches an RScript.Here’s a way to do this using npm. Please note that this blog post won’t teach you how to build the commandline tool, it will quickly go over the way to create a system-widecommand line interface, using npm. If you want to learn more about building the utility, see thisfantastic series of blogpostsby Mark Sellor. Now, the idea is to have ... Read More

Feed: Blog – Hazelcast. Author: Matt Wolpin. Last week, Hazelcast earned a coveted spot on the list of Red Herring’s Top 100 North America private technology companies. Make no mistake, there was nothing fishy or misleading about this honor. Ok, enough of the “red herring” puns. If you’re not familiar with Red Herring, it is a global media organization aimed at uniting the world of high-tech innovators, venture capital investors, and business makers. For more than two decades, the publication and Alex Vieux, its current CEO and Chairman, have covered the technology sector with the goal of impacting the global ... Read More

Feed: R-bloggers. Author: melliferrari. Learn to experiment with R to make analyses and figures more reproducible If you’re in the UK and not too far from York you might be interested in a Royal Society of Biology course which forms part of the Industry Skills Certificate. More details at this link Introduction to Reproducible Analyses in R 24 June 2019 from 10:00 until 16:00 The course is aimed at researchers at all stages of their careers interested in experimenting with R to make their analyses and figures more reproducible. No previous coding experience is assumed and you can work on your own ... Read More

Feed: R-bloggers. Author: Laura Swales. Julia Silge is joining us as one of our keynote speakers at EARL London 2019. We can’t wait to hear Julia’s full keynote, but until then she kindly answered a few questions. Julia shared with us what we can expect from her address – which will focus on how Stack Overflow uses R and their recent developer survey. Hi Julia! Tell us about the StackOverflow Developer Survey and your role at Stack Overflow The Stack Overflow Developer Survey is the largest and most comprehensive survey of people who code around the world each year. This ... Read More

Feed: R-bloggers. Author: Ari Lamstein. Last week the Census Bureau published a free course I created on using Choroplethr to map US Census Data. Unfortunately, a few people have reported problems when following one of the examples in the course. This post describes that issues and provides instructions for working around it. Where does the bug occur? The bug occurs in Module 2 Lesson 4, when creating this map: The code I provide to create that map can be seen here: state_choropleth(df_pop_state, num_colors = 1, zoom = c("california", "oregon", "washington"), reference_map = TRUE) Note that this map combines a standard ... Read More

Feed: R-bloggers. Author: Hello, world! My name is Justin.. (TL;DR: You can add vectors that have the same number of elements.) LaTeX and MathJax warning for those viewing my feed: please viewdirectly on website! You want to know how to rhyme, you better learn how to addIt’s mathematics Mos Def in ‘Mathematics’ Lasttime,we learnt about scalar multiplication. Let’s get to adding vectorstogether! We will follow the notation in Goodfellow, Ian, etal.. If our vector has elements that are real numbers, then we can say thatis a -dimensional vector. We can also say that lies in some set of all vectorsthat ... Read More