Creating a data.table from C++
Introduction Rcpp provides the DataFrame class which enables us to pass data.frame object between C++ and R. DataFrame objects are key to R and used very widely. They also provide...continue reading.
Category: R News
Wrangling Unruly Data: The Bane of Every Data Science Team
There’s an old saying (at least old in data scientist years) that goes, “90% of data science is data wrangling.” This rings particularly true for data science leaders, who watch...continue reading.
more games of life
Another puzzle in memoriam of John Conway in The Guardian: Find the ten digit number, abcdefghij. Each of the digits is different, and a is divisible by 1 ab is...continue reading.
Worldwide COVID-19 spread visualization with R
COVID-19 or Coronavirus pandemic is having an unpredictable and huge impact on our lives, so I wanted to see the speed with which it spreads across countries. The following is...continue reading.
The spread of COVID-19 across countries visualization with R
COVID-19 or Coronavirus pandemic has a huge and unpredictable effect on our lives. I wanted to see the speed and spreading of the virus across countries. And the following is...continue reading.
The ‘prisoner coin flipping’ puzzle: tidy simulation in R
Previously in this series The “lost boarding pass” puzzle The “deadly board game” puzzle The “knight on an infinite chessboard” puzzle The “largest stock profit or loss” puzzle The “birthday...continue reading.
free Springer textbooks [incl. Bayesian essentials]
This article is originally published at https://xianblog.wordpress.com Thanks for visiting r-craft.org This article is originally published at https://xianblog.wordpress.com Please visit source website for post related comments.continue reading.
R Weekly 2020-18 3D Maps, {drake} diets, {dplyr} for package devs
Hello and welcome to this new issue! This week’s release was curated by Robert Hickman, with help from the RWeekly team members and contributors. A Step-by-Step Guide to Making 3D...continue reading.
Greg Wilson Wins ACM Influential Educator Award
Recently, the Association for Computing Machinery’s (ACM’s) Special Interest Group on Software Engineering (SIGSOFT) recognized Greg Wilson as the 2020 recipient of its prestigious Influential Educator Award which is awarded...continue reading.
Le Monde puzzle [#1141]
The weekly puzzle from Le Monde is in honour of John Conway, who just passed away, ending up his own game of life: On an 8×8 checker-board, Alice picks n...continue reading.
R Data Analysis: covid-19, part 2 [merge datasets]
This tutorial is part of a series of R tutorials analyzing covid-19 data. For part 1, see the following post: https://www.sharpsightlabs.com/blog/r-data-analysis-covid-19-part1-data-wrangling/ Covid19 analysis, part 2: merge datasets In this tutorial,...continue reading.
Statistics Sunday: My 2019 Reading
I’ve spent the month of April blogging my way through the tidyverse, while using my reading dataset from 2019 as the example. Today, I thought I’d bring many of those...continue reading.
Combine values into a vector
R always creates lists of values—even when there is only one value in a list. These lists are called vectors and they make working with data much easier. Everything is...continue reading.
simulating a sum of Uniforms
When considering the distribution of the sum (or average) of N Uniform variates, called either Irwin-Hall for the sum or Bates for the average, simulating the N uniforms then adding...continue reading.
Using random forest to model limit order book dynamic
In this article I use the random forest algorithm to forecast mid price dynamic over short time horizon i.e. a few seconds ahead. This is of particular interest to market...continue reading.
An agile approach to performing through Covid-19
Working at a distance is hard. It requires discipline, planning, trust, and an acceptance that things may not be smooth…. The post An agile approach to performing through Covid-19 appeared...continue reading.
Successful Strategies to Navigate Your Team Through Times of Crisis (Part 1 of 3)
Having access to the right data, at the right time, and in the right format, in order to inform your… The post Successful Strategies to Navigate Your Team Through Times...continue reading.
Why R? Webinar – Development pipeline for R production – rZYPAD
April 30th (8:00pm GMT+2) is another date for a webinar at Why R? Foundation YouTube channel. We will have a blast talk by Lorenzo Braschi from Roche IT. The title...continue reading.
Z is for Additional Axes
Here we are at the last post in Blogging A to Z! Today, I want to talk about adding additional axes to your ggplot, using the options for fill or...continue reading.
R Data Analysis: covid-19, part 1 [data wrangling]
In this tutorial, we’re going to analyze covid19 data using R and the Tidyverse. Recently, we started a data analysis series, where we analyzed covid19 data. The first set of...continue reading.
