Leverage Effect

April 11, 2024 | R - datawookie

The models we have been looking at do not differentiate between positive and negative residuals: both errors are treated the same. However, this does not align with reality, where the volatility resulting from a large negative return is higher than that for the corresponding positive return.
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Crafting Elegant Scientific Documents in RStudio: A LaTeX and R Markdown Tutorial

April 11, 2024 | Numbers around us

IntroductionIn the world of scientific research and academic writing, the clarity, precision, and aesthetics of your documents can significantly impact their reception and comprehension. LaTeX, a powerful typesetting system, has long been revered for its ability to create beautifully formatted documents, especially those requiring complex mathematical expressions and detailed layouts. ...
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simaerep release 0.5.0

April 10, 2024 | R on datistics

Simulate adverse event reporting in clinical trials with the goal of detecting under-reporting sites. Monitoring of Adverse Event (AE) reporting in clinical trials is important for patient safety. We use bootstrap-based simulation to assign an AE ...
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R-hub v2

April 10, 2024 | Posts on R-hub blog

After eight years, we are retiring the current version of R-hub, in favor of a better, faster, modern system. We call the new system R-hub v2. R-hub v2 runs R package checks on GitHub Actions. R-hub v2 works best if your R package is in a GitHub reposi... [Read more...]

The Truth About Tidy Wrappers

April 9, 2024 | Art Steinmetz

These are the packages we will need for this analysis. library(tidyverse) library(data.table) library(dtplyr) library(duckdb) library(duckplyr) library(polars) library(tidypolars) library(arrow) library(tictoc) library(microbenchmark) library(gt) The Tidyverse I love the Tidyverse from Posit.co. The biggest evolution of the R language ecosystem ...
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Simple and Fast Visualization of Biodiversity Occurrence Data using GBIF and R Shiny

April 9, 2024 | Vinicius Bastazini

As an ecologist, being able to easily visualize biodiversity occurrence data is an essential need as this kind of data visualization provides critical insights into species distribution patterns and ecological requirements, which is essential for understanding biodiversity dynamics in space and time. Moreover,  for pragmatic reasons, fast and simple biodiversity ...
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PowerQuery Puzzle solved with R

April 9, 2024 | Numbers around us

#171–172PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #171Power Query puzzles are very often focused on transformation of tables in very different ways. And we ...
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EARL Early Bird Tickets Are Now Available!

April 8, 2024 | R Consortium

Contributed by Abbie Brookes, Senior Data Analyst at Datacove Datacove is pleased to announce the availability of tickets for the upcoming EARL (Enterprise Applications of the R Language) conference.  The... The post EARL Early Bird Tickets Are Now Available! appeared first on R Consortium.
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Git Gud: Version Control Best Practices

April 8, 2024 | Gift Kenneth

Git best practices are essential for developers looking to manage their projects efficiently. In this article, we’ll dive into the key techniques that can transform your version control workflow, ensuring you leverage Git to its full potential for improved productivity and collaboration.‍ We already introduced you to Git and ...
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R Solution for Excel Puzzles

April 8, 2024 | Numbers around us

Puzzles no. 424–428PuzzlesAuthor: ExcelBIAll files (xlsx with puzzle and R with solution) for each and every puzzle are available on my Github. Enjoy.Puzzle #424We are playing with numbers very often, and sometimes is just playing for playing. Like tod...
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Loading Financial Time Series

April 7, 2024 | R - datawookie

I’m going to be writing a series of posts which will look at some applications of R (and perhaps Python) to financial modelling. We’ll start here by pulling some stock data into R, calculating the daily returns and then looking at correlations and simple volatility estimates.
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