R-bloggers

Web applications that are Web Content Accessibility Guidelines (WCAG) compliant are becoming an increasingly prominent part of my role as a data scientist as the importance of ensuring that data products are available to all takes a more central focus. This is particularly true in the case of building solutions ...

I love Nottingham Forest and have been trying to find a way to include them in one of my tutorials, as they are in the play-offs to go into the top flight leagues. This tutorial allows you to download images from Selenium and automate Google Chrome. Can I get a ...

A question from X validated had enough appeal for me to procrastinate about it for ½ an hour: what difference does it make [for simulation purposes] that a target density is properly normalised? In the continuous case, I do not see much to exploit about this knowledge, apart from the value ...

I joined Nylas around four months ago as their first Senior Developer Advocate. It might seem like a short amount of time, but in the startup world, time moves differently.What is Nylas?In a nutshell, Nylas is a set of APIs that allows you to easily co...

Photo by Jeremy Bezanger on Unsplash The R Markdown file format combines R programming and the markdown language to create dynamic, reproducible documents. Authors use R Markdown for reports, slide shows, blogs, books — even Shiny apps! Since users can...

I am very happy to annouce that the {chronicler} package, which I’ve been working on for the past 3 months has been released on CRAN. Install it with:

install.packages("chronicler")

{chronicler} allows you to create objects that carry a log with them. Here is an example of an object that has ...

Data Science take-home challenges will definitely get you out of your comfort zone. But you know what? That’s a good thing – it’s the only zone in which you’ll learn something, after all. Taming the take-home challenges is necessary both for beginner and advanced R programmers, but the ...

In today’s newsletter Leonardo, an open source project and free online too from Adobe that lets you make great and accessible color palettes for use in UX/UI design and data visualizations! You can read the one newsletter section to get a feel for Leonardo, then go play with ...

Introduction Solving a nonlinear least squares problem consists of minimizing a least squares objective function made up of residuals $g_1(\boldsymbol{\theta}), \ldots, g_n(\boldsymbol{\theta})$ that are nonlinear functions of the parameters of intere...

A couple of weeks ago I was looking around for different CSS frameworks to play around with, and came across Semantic HTML (not to be confused with Semantic UI) and I’m hooked! There are several “classless CSS frameworks” that are...

The post How to draw heatmap in r: Quick and Easy way appeared first on Data Science Tutorials - How to draw heatmap in r?, A heatmap is essentially a table with colors replacing the numbers. The colors represent the measuring level. It can help you locate highs and lows, ...

Cover photo by Eric Ward on Unsplash Go to R-bloggers for R news and tutorials contributed by hundreds of R bloggers. Introduction This article is the Part 3 of the series (Swarm) Portfolio Optimization. I assume you have read Part 2 - Notion of non-do...

16 May 2022 A great way to learn how to analyze data or improve the skills you have is to watch experienced people do it. It’s handy if you have experienced colleagues around you, but what if your colleagues are too busy to help coach you, you’re still trying to … ...

Data scientists concentrate on making sense of data through exploratory analysis, statistics, and models. Software developers apply a different set of knowledge with different tools. Although their focus is different, data science teams can benefit fro...

Introduction Before 2022 In 2022 Probabilities computation in R First draw Second draw Third draw Game limited to 3 draws Game limited to 5 draws Game limited to 100 draws Game limited to the number of necessary draws Final winning probabilities ...