R-bloggers

Introduction Data manipulation is a crucial skill in R programming, and subsetting data frames is one of the most common operations you’ll perform. This comprehensive guide will walk you through four powerful methods to subset data frames in R,...

Introduction Social network analysis examines individual entities and their relationships among them. The data is represented as a “graph” where individual entities are referred to as “nodes” and their relationships between them as “edges. A primary area of study in SNA is the analysis of interconnectivity of nodes, called ”communities” ...

Meltwater in crevasses in Greenland – CC-BY-NC by NASA’s Marshall Space Flight Center Day 11 of 30DayMapChallenge: « Arctic » (previously). We’ll use the Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids (J. Bamber 2001) from J. L. Bamber, Layberry, and Gogineni (2001) and Layberry and Bamber (2001). Download here (after registration). Data The ...

The tilde operator (~) is a fundamental component of R programming, especially in statistical modeling and data analysis. This comprehensive guide will help you master its usage, from basic concepts to advanced applications. Introduction The ti...

This post describes a particular use-case for Python in Excel and how it was solved using the R package Reticulate 1.39.0 (https://cran.r-project.org/web/packages/reticulate/index.html) along with the ExcelRAddIn (https://github.com/Adam-Gladstone/Office365AddIns). A while back I read an interesting post on LinkedIn that ...

Reposted from the original at https://blog.stephenturner.us/p/python-cli-click-cookiecutter. ---In the spirit of Learning in Public, I wanted an excuse to explore (1) click for creating command line interfaces, (2) Cookiec...

Gradient boosting with any regression algorithm in Python and R package mlsauce. Part4, Time series forecasting

Methods for comparing spatial patterns in raster data This is the fifth part of a blog post series on comparing spatial patterns in raster data. More information about the whole series can be found in part one. This blog post focuses ...

Introduction Linux, an open-source operating system known for its stability and flexibility, relies heavily on efficient process management. For beginners venturing into the world of Linux, understanding processes and mastering related commands...

It’s Hallowe’en; that time of year when LinkedIn is full of photos of the recruiters who ghosted you dressed up as ghosts. But ghosting isn’t the only bad thing about the modern-day job market. Another plague on job seekers is the endless rounds of int...

All of our public training courses for the first half of 2025 are now open for registration! Head over to the public courses page on our website to book in and start building your programming skills in the new year! Below is a list of all of our ...

Introduction In C programming, the ability to make decisions and control the flow of a program is essential. One of the most fundamental ways to do this is by using conditional statements like if and else if. These statements allow you to test ...

Introduction It can be fun to drive a problem all the way into the ground. I don’t always get to do that on paying projects, however sometimes I can do it with hobby projects. In this case I am going to re-solve Dudeney’s Remainder Problem again and again ...

Introduction to the new exams2forms package for including quizzes or individual questions from dynamic exercise templates into rmarkdown or quarto documents, e.g., for self-paced learning and self-assessment. Overview The new package exams2forms, co-authored with Reto Stauffer, provides several building blocks for embedding exercises written with the R ...

I have been thinking in my spare time a bit about synthetic control methods as an approach to evaluation, and am working on a blog post. But a side issue that popped up was sufficiently interesting to treat separately. Technically, it is a question of...

Introduction The dollar sign ($) operator is one of the most fundamental tools in R programming, serving as a key method for accessing and manipulating data within data frames and lists. Whether you’re just starting your R programming journey o...

How to join this free online event with Pedro Faria, Beatriz Milz and Francesca Belem Lopes Palmeira. A comunidade R está realizando vários esforços de traduções comunitárias para o português de diferentes recursos: livros, pacotes e guias. Nesta chamada da comunidade, três líderes ...

Valley of the roses – CC-BY-NC-ND by Riccardo Maria Mantero Day 6 of 30DayMapChallenge: « Raster » (previously). What was the temperature at your birth place when you were born? Copernicus provides many climate datasets. ...