Tag: Twitter

Feed: R-bloggers. Author: Thinking inside the box. [This article was first published on Thinking inside the box , and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. A new release 0.4.12 of RQuantLib arrived on CRAN today, and was uploaded to Debian as well. QuantLib is a very comprehensice free/open-source library for quantitative finance; RQuantLib connects it to the R environment and language. This version does relatively little. When QuantLib 1.18 came out, I ... Read More

Feed: R-bloggers. Author: R/exams. [This article was first published on R/exams, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. Webinar hosted by Why R? Foundation: Slides, video, and e-learning resources. Why R? Webinar 001 R/exams was presented in the first Why R? webinar by Achim Zeileis. Marcin Kosiński was the host and did a great job setting up the Zoom session that was streamed live on YouTube where more than 100 participants joined ... Read More

Feed: R-bloggers. Author: Sebastian Wolf. Governments and COVID-19: Which one stops it faster, better, has fewer people dying? These questions get answered with my dashboard. A contribution to the shiny-contest: https://community.rstudio.com/t/material-design-corona-covid-19-dashboard-2020-shiny-contest-submission/59690 Intro How did Corona spread? Using the animation feature of R-shiny this can be easily tracked.COVID-19 is the major topic in all news channels. The place I live in is Munich, Germany. Within weeks Germany moved from 3 patients in the hospital next to my home, to have 20,000 patients. As a data-scientist, I did not only see the numbers but the exponential growth. I wanted to know: How ... Read More

Feed: R-bloggers. Author: Thinking inside the box. [This article was first published on Thinking inside the box , and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. A new (upstream) simdjson release was announced by Daniel Lemire earlier this week, and my Twitter mentions have been running red-hot ever since as he was kind enough to tag me. Do look at that blog post, there is some impressive work in there. We wrapped up ... Read More

Feed: The Information Lab. Author: natalia.miteva. 3 April, 2020 How to create a simple 4-colour quadrant in Tableau The example in this blog is based on data provided by The World Bank and is also available on makeovermonday.co.uk/data under 2020 -> Week 11. Step 1. Build a scatter plot and add reference lines to both axes. Step 2. Create a calculated field to colour the circles falling under the 4 parts of the quadrant differently. Place the new field on the Colour shelf. Configure the table calculation as below: Click on the Colour shelf and choose colours you like. You may want to reduce the opacity ... Read More

Feed: R-bloggers. Author: Unknown. [This article was first published on Deeply Trivial, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. For the letter C, we’ll talk about the coalesce function. If you’re familiar with SQL, you may have seen this function before. It combines two or more variables into a single column, and is a way to deal with missing data. When you give it a list of variables, it selects the first ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Cheryl To. #FlattenTheCurve. #StayHome. #QuarantineLife. They’ve all been trending, and it seems like everybody knows that it’s time to stay at home, indoors, and as far apart (physically) as possible. We’re in the midst of a global pandemic, the worst we’ve seen in a century, yet we still see people out and about, on the streets, congregating in large groups, against the unambiguous advice of experts and health professionals.Why jeopardize public safety? Is it due to a lack of information? A quick online search will produce results on how the virus ... Read More

Feed: R-bloggers. Author: Kelly O'Briant. [This article was first published on RStudio Blog, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. One of the biggest frustrations for a data scientist, whether your primary language is R or Python, is to have your hard work go underutilized. A stream of disposable reports, emails, and presentations that get viewed once and cast aside are not the ideal recipe for how to make an impact. To ... Read More

Feed: R-bloggers. Author: Przemyslaw Biecek. Remote teaching at my university encouraged me to prepare some video materials for Explanatory Model Analysis techniques, i.e. techniques of exploration, explanation and visualisation of predictive models. The pyramid for Explanatory Model Analysis. Left part is focused on a single observation (instance-level or local explanations). Right part is focused on the whole data set (called dataset level or global explanations). In the first row are raw model predictions and model statistics. The second row is related to the analysis of model parts. The third row describes the profile of model behaviour depending on the values ... Read More

Feed: Teradata Blog. Bayes’ theorem, also known as Bayes’ rule or Bayes’ law named after 18th-century British mathematician Thomas Bayes, is a mathematical formula used to calculate conditional probability. In other words, it is used to calculate the probability of an event based on its association with another event. It incorporates prior knowledge while calculating the probability of occurrence of the same in the future. It is often used in today’s highly demanding Machine Learning and Artificial Intelligence applications and is now one of the most useful concepts for understanding few Vantage algorithms to predict the probability of an outcome. So, let’s try to understand ... Read More