February 2022

spiral matrix [X-validated]

February 10, 2022 | xi'an

One recent code-golf challenge was to write the shortest possible code representing the first n² integers in a spiral progression, e.g., 0 1 2 3 4 15 16 17 18 5 14 23 24 19 6 13 22 21 20 7 12 11 10 9 8 While I did not come close to the best […] [Read more...]

Propagating nerve impulse in Hodgkin-Huxley model. Modeling with R. Part 2

February 10, 2022 | Abderrahim Lyoubi-Idrissi

Are you interested in guest posting? Publish at DataScience+ via your RStudio editor.CategoryAdvanced ModelingTagsData VisualisationHodgkin & Huxley modelR ProgrammingShiny appIntroduction In this second part we will present a numerical method for solving the PDE system, which describes the propagation of action potential. We will make use of the R-Packages deSolve ...
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Polished Now Supports Shiny Rmds

February 9, 2022 | Posts on Tychobra

tldr: You can now use polished to secure Rmarkdown documents that use the shiny runtime. This includes flexdashboards! For example, if you have a flexdashboard that uses shiny. e.g. Your Rmd Shiny App With a single function call, you can add a...
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R Graphical User Interface Comparison

February 9, 2022 | Bob Muenchen

I have recently updated my detailed reviews of Graphical User Interfaces (GUIs) for R, so it’s time for another comparison post. It’s not too difficult to rank them based on the number of features they offer, so let’s start there. I’m basing the counts on the ...
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How to use R Markdown (part one)

February 9, 2022 | R on R (for ecology)

Today I’m excited to share a blog post on how to use R Markdown. R Markdown is a dynamic file format that allows you to make documents containing normal text alongside chunks of embedded R code. In fact, all of my blog posts are written using R M...
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How to calculate Power Regression in R (Step-by-Step Guide)

February 9, 2022 | finnstats

The post How to calculate Power Regression in R (Step-by-Step Guide) appeared first on finnstats. If you want to read the original article, click here How to calculate Power Regression in R (Step-by-Step Guide). Power Regression in R, Power regression is a non-linear regression technique that looks like this: y = ...
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Notion of non-dominated solutions

February 9, 2022 | Boris Guarisma

Cover photo by Mehdi Sepehri on Unsplash Go to R-bloggers for R news and tutorials contributed by hundreds of R bloggers. Introduction This article is part of the series (Swarm) Portfolio Optimization. I assume you have read the Nonparametric VaR artic...
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SEM Stochastic Simulation and Optimal Control

February 6, 2022 | R Views

Andrea Luciani is a Technical Advisor for the Directorate General for Economics, Statistics and Research at the Bank of Italy, and co-author of the bimets package. Introduction In this post, I show how to analyze the forecast error for a Structural Equation Model (SEM) by means of a stochastic simulation, ...
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Accessing Snowflake with R

February 6, 2022 | rstats-tips.net

Snowflake is a well known cloud-based database. It’s used for Data Warehouses and other big data applications. In this article and the following ones I want to show how to setup and access a snowflake database from various clients such as R, Tableau and PowerBI. So let’s start ...
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Tabnet for R

February 6, 2022 | RBelgium open content

You can see the recorded presentation below of the RBelgium session we held last week (on Thursday 2022-02-03). Christophe Regouby (co-author of the tabnet R package) talked about the design of the the recent torch R package which interfaces with the ...
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