2022

mlr3 package updates – Q4/2021

January 2, 2022 | Machine Learning in R

Due to the high amount of packages in the mlr3 ecosystem, it is hard to keep up with the latest changes across all packages. This posts gives an overview by listing the recent release notes of mlr3 packages from the last quarter. Note that only CRA... [Read more...]

Using Arrow with Shiny

January 2, 2022 | Pachá

This post is an adaptation from Using databases with Shiny. Shiny apps are R’s answer to building interface-driven applications that help expose important data, metrics, algorithms, and more with end-users. However, the more interesting work that y... [Read more...]

Uncovered Interest Rate Parity and F-test on Regression Parameters using R

January 2, 2022 | sang-heon lee

This post explains how to perform the F-test of joint parameter restrictions on a linear regression model. As an example, we use the data in Chen and Tsang (2013), who introduce so called relative Nelson-Siegel factor model to predict exchange r...

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How to perform the Sobel test in R

January 1, 2022 | finnstats

The post How to perform the Sobel test in R appeared first on finnstats. If you want to read the original article, click here How to perform the Sobel test in R. How to perform the Sobel test in R, This tutorial will show you how to perform a Sobel ... [Read more...]

Binary image classification using Keras in R: Using CT scans to predict patients with Covid

January 1, 2022 | R | Olivier Gimenez

Here I illustrate how to train a CNN with Keras in R to predict from patients' CT scans those who will develop severe illness from Covid. Motivation Michael Blum tweeted about the STOIC2021 - COVID-19 AI challenge. The main goal of this challenge is to...

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Using databases with Shiny

January 1, 2022 | rstats | Emily Riederer

Shiny apps are R’s answer to building interface-driven applications that help expose important data, metrics, algorithms, and more with end-users. However, the more interesting work that your Shiny app allows users to do, the more likely users ar...

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Chi-Square Goodness of fit formula in R

January 1, 2022 | finnstats

The post Chi-Square Goodness of fit formula in R appeared first on finnstats. If you want to read the original article, click here Chi-Square Goodness of fit formula in R. Chi-square goodness of fit formula, To see if a categorical variable follows a hypothesized distribution, a Chi-Square Goodness of Fit ... [Read more...]

How to install (and update!) R and RStudio

January 1, 2022 | R on R (for ecology)

One of the first steps to learning R is to have it downloaded and installed on your computer. In this post I’ll show you how to do that and how to download and install RStudio—a key tool for using R, and how I do all my work and ...