Scraping the NYSE Composite Index
For a side project I needed to scrape data for the NYSE Composite Index going back as far as possible.
Dyson’s Algorithm for the Twelve Coins Problem
Nina continues with the 12 coins problem by transcribing Dyson’s algorithm into R. It is kind of a fun article. Most of us see the 12 coins problem as a one-off puzzle that we spend a little time with and give up on. In her earlier “The Twelve Coins Puzzle” […] [Read more...]
Table It Like a Pro: Print-Ready Tables in R
You’ve probably been there — mention to someone that you work with data, and they say, “Oh, so you just make tables?” Tables, right? How hard could it be? It’s just rows and columns. But we know better, don’t we? Tables aren’t just a random dumping gro...
Enhancing Time Series Analysis: RandomWalker 0.2.0 Release
Introduction
In the ever-evolving landscape of R programming, packages continually refine their capabilities to meet the growing demands of data analysts and researchers. Today, we’re excited to announce the release of RandomWalker version 0.2....
Asset Price Data
In a previous post I looked at retrieving a list of assets from the Alpaca API using the {alpacar} R package. Now we’ll explore how to retrieve historical and current price data.
Mastering Mathematics in C Programming: A Beginner’s Guide
Introduction
When starting your journey in C programming, understanding how to perform mathematical operations is fundamental. Whether you’re calculating simple arithmetic or complex mathematical expressions, C provides powerful tools and opera...
rOpenSci News Digest, October 2024
Dear rOpenSci friends, it’s time for our monthly news roundup!
You can read this post on our blog.
Now let’s dive into the activity at and around rOpenSci!
rOpenSci HQ
Fostering open science in Latin America: CZI awards funds for susta... [Read more...]
PowerQuery Puzzle solved with R
#227–228PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #227We are given two tables one with employees data, and second with conditional assignment of salary. The...
Python for R users (repost)
This is reposted from the original at https://blog.stephenturner.us/p/python-for-r-users.---A Google search for “R vs Python” returns thousands of hits across sites like Reddit, IBM, Datacamp, Coursera, Kaggle, and many others. A quick Googl...
Time Series Machine Learning: S&P 500
It does not seem to be a safe entry point for the S&P 500 market ahead of the FED rate cuts. Source code:
How to Loop Through List in R with Base R and purrr: A Comprehensive Guide for Beginners
Introduction
R programming has become an essential tool in the world of data analysis, offering powerful capabilities for manipulating and analyzing complex datasets. One of the fundamental skills that beginner R programmers need to master is t...
Looking for Maintainers to Support First-Time Contributors
Do you remember your first contribution to open source?
Or are you still waiting to make it?
Contributing to open source can be very rewarding, but also incredibly intimidating.
When we asked about first time contributions on the rOpenSci Slack,
peopl... [Read more...]
R Solution for Excel Puzzles
Puzzles no. 564–568PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #564Have you ever thought about sorting only part of given data, not even changing position whe...
Visualizing Variance with Sankey diagrams/Riverplots using R: An Illustration with Longitudinal Multi-level Modeling workshop
Join our workshop on Visualizing Variance with Sankey diagrams/Riverplots using R: An Illustration with Longitudinal Multi-level Modeling, which is a part of our workshops for Ukraine series! Here’s some more info: Title: Visualizing Variance with Sankey diagrams/Riverplots using R: An Illustration with Longitudinal Multi-level Modeling Date: Thursday, ... [Read more...]
Understanding Difference-in-Differences: Basics and Beyond with Applications in R workshop
Join our workshop on Understanding Difference-in-Differences: Basics and Beyond with Applications in R, which is a part of our workshops for Ukraine series! Here’s some more info: Title: Understanding Difference-in-Differences: Basics and Beyond with Applications in R Date: Thursday, November 21st, 18:00 – 20:00 CET (Rome, Berlin, Paris timezone) Speaker: Tobias Eibinger ... [Read more...]
A Guide to Validating R (Shiny) Applications in Pharma
Validating R Shiny applications is critical in the pharmaceutical industry, where data integrity, compliance, and patient safety are essential. Building on our post on R package validation, Shiny apps introduce unique challenges due to their interactive nature and real-time data processing compared to packages. To meet FDA (US), EMA (EU), ...
Mastering Column Names in Base R: A Beginner’s Guide
Introduction
Welcome to the world of R programming! As a beginner, one of the first tasks you’ll encounter is working with data frames and understanding how to manipulate them. This guide will walk you through the process of retrieving and sort...
Listing Alpaca Assets
How to list assets available to trade via the Alpaca API using the {alpacar} R package. [Read more...]
Kill all R sessions
When working in R, there are times when managing multiple R sessions becomes essential. For instance, if you are updating packages, troubleshooting conflicts, or managing system resources, it may be necessary to terminate all the sessions, or to k... [Read more...]
R editor and SQL console (in addition to Python editors) in www.techtonique.net
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