Category: R

Feed: R-bloggers. Author: rOpenSci - open tools for open science. The data.table package enables high-performance extended functionality for data tables in R. treedata.table is a wrapperfor data.table for phylogenetic analyses that matches a phylogeny to the data.table, and preserves matching during data.table operations.Using the data.table package greatly increases analysis reproducibility and the efficiency of data manipulation operations over other ways of performing similar tasks inbase R, enabling processing of larger trees and datasets. Why use treedata.table? Simultaneous processing of phylogenetic trees and data remains a computationally-intensive task.For example, processing a tree alongside a dataset of phylogenetic characters means processing much ... Read More

Feed: R-bloggers. Author: R on Redwall Analytics. [This article was first published on R on Redwall Analytics, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. # Libraries packages <- c("data.table", "ggplot2", "stringr", "skimr", "janitor", "glue" ) if (length(setdiff(packages,rownames(installed.packages()))) > 0) { install.packages(setdiff(packages, rownames(installed.packages()))) } invisible(lapply(packages, library, character.only = TRUE)) knitr::opts_chunk$set( comment = NA, fig.width = 12, fig.height = 8, out.width = '100%', cache = TRUE ) EPA AirData Air Quality Monitors As our ... Read More

Feed: R-bloggers. Author: R Views. [This article was first published on R Views, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. One hundred forty-six new packages stuck to CRAN in August. Below, are my “Top 40” picks in eleven categories: Computational Methods, Data, Genomics, Insurance, Machine Learning, Mathematics, Medicine, Statistics, Time Series, Utilities and Visualization. Computational Methods dpseg v0.1.1: Implements an algorithm for piecewise linear segmentation of ordered data by a dynamic programming ... Read More

Feed: R-bloggers. Author: R/exams. [This article was first published on R/exams, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. Resources and experiences shared by the R/exams community for supporting distance learning in different learning management systems. Motivation The COVID-19 pandemic forced many of us to switch abruptly from our usual teaching schedules to distance learning formats. Within days or a couple of weeks, it was necessary to deliver courses in live streams or ... Read More

Feed: R-bloggers. Author: Marcin Kosiński. [This article was first published on http://r-addict.com, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. Why R 2020 Keynotes sessions are close! Check out below posts to find out dates and descriptions of keynote talks for 2020.whyr.pl. Why R? 2020 Keynotes Julia Silge is a data scientist and software engineer at RStudio PBC where she works on open source modeling tools. She is an author, an international keynote ... Read More

Feed: R-bloggers. Author: Jakub Wiśniewski. Version 0.2.2 is out and it has big changes! TL;DR Some new functionalities were added in R package fairmodels which is available on CRAN. In this blog, I will cover them in depth. The biggest changes concerned the fairness_check() function, parity_loss, and the addition of a new plot (not really but it hasn’t been properly introduced). Problem The boundary between fair and discriminatory decision is really arbitrary and subjective. Let’s say that people from towns A and B are identical and the amount of people applying for loans is big and equal in both towns. Can ... Read More

Feed: R-bloggers. Author: AbdulMajedRaja RS. Google Colab is a Free (to certain limit) Hosted Notebook provided by Google.It comes with GPU and TPU RunTime. It’s been avaialble only for Python users.But recently, there’s was a tip shared which enables using R on Google Colabnatively. Also, the R environment comes with a lot of R pakcages (including tidyverse)pre-installed. Video Walkthrough Sample Notebook Related ... Read More

Feed: R-bloggers. Author: Economics and R - R posts. Most economists agree that putting a price on greenhouse gas emmissions either in form of emission certificates or a carbon tax should be the main instrument to combat climate change in a cost-efficient manner. Sweden has introduced a steadily increasing Carbon tax in 1991 which reached in 2020 a level of 110 Euro per ton CO2, which makes it the highest carbon tax in the world. The tax applies to those sectors that are not covered by the EU emission trading system (mainly transport and residential heating). Two important questions related ... Read More

Feed: R-bloggers. Author: Roel M. Hogervorst. In this tutorial I have an R script that runs every day on heroku. It creates a curve in ggplot2 and posts that picture to twitter. The use case is this: You have a script and it needs to run on a schedule (for instance every day). In 2018 I wrote a small post how to run an R script on heroku.The amazing thing is that the bot I created back then is still running! But I recently got a question about the scheduling, and because I did not really document it that well ... Read More

Feed: R-bloggers. Author: Your Name. [This article was first published on krzjoa, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. Why do we may need double dispatch? In most cases, when writing R scripts or even creating R packages, it isenough to use standard functions or S3 methods. However, there is oneimportant field that forces us to consider double dispatch question:arithmetic operators. Suppose we’d like to create a class, which fits the problem ... Read More