Tag: R

Feed: Featured Blog Posts - Data Science Central. Author: Vincent Granville. The model-free, data-driven technique discussed here is so basic that it can easily be implemented in Excel, and we actually provide an Excel implementation. It is surprising that this technique does not pre-date standard linear regression, and is rarely if ever used by statisticians and data scientists. It is related to kriging and nearest neighbor interpolation, and apparently first mentioned in 1965 by Harvard scientists working on GIS (geographic information systems). It was referred back then as Shepard's method or inverse distance weighting, and used for multivariate interpolation on ... Read More

Feed: R-bloggers. Author: David Robinson. [This article was first published on Variance Explained, 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. Previously in this series I love 538’s Riddler column, and I’ve enjoyed solving the November 20th puzzle. I’ll quote: To celebrate Thanksgiving, you and 19 of your family members are seated at a circular table (socially distanced, of course). Everyone at the table would like a helping of cranberry sauce, which happens ... Read More

Feed: Blog – ArangoDB. Author: Christopher Woodward. This post is the fifth in a series of posts introducing the ArangoML features and tools. This post introduces the ArangoDB NetworkX adapter, which makes it easy to analyze your graphs stored in ArangoDB with NetworkX. In this post we: Briefly introduce NetworkXExplore the IMDB user rating datasetShowcase the ArangoDB integration of NetworkXExplore the centrality measures of the data using NetworkXStore the experiment with arangopipe Going forward, the ArangoML Series will no longer be numbered. Parts 1-4 deal with the same housing dataset and focus on introducing some core machine learning concepts. We ... Read More

Feed: AWS Big Data Blog. Many organizations have an Apache Hive metastore that stores the schemas for their data lake. You can use Amazon Athena due to its serverless nature; Athena makes it easy for anyone with SQL skills to quickly analyze large-scale datasets. You may also want to reliably query the rich datasets in the lake, with their schemas hosted in an external Hive metastore. In response to customers’ requests, AWS announced Athena’s support for Hive metastore in early 2020. This extends the ability in Athena to query external data stores, with a combined benefit of better performance and ... Read More

Feed: AWS Big Data Blog. Amazon EMR is a big data service offered by AWS to run Apache Spark and other open-source applications on AWS in a cost-effective manner. Amazon EMR Notebooks is a managed environment based on Jupyter Notebook that allows data scientists, analysts, and developers to prepare and visualize data, collaborate with peers, build applications, and perform interactive analysis using EMR clusters. EMR notebook APIs are available on Amazon EMR release version 5.18.0 or later and can be used to run EMR notebooks via a script or command line. The ability to start, stop, list, and describe EMR ... Read More

Feed: R-bloggers. Author: Method Matters. [This article was first published on Method Matters 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. In this post, we will examine the harmonic properties of songs in my music collection. We will focus on two primary aspects of the music: the mode (e.g. whether the songs are played in major or minor keys), and the musical key itself (e.g. C major, D minor, etc. – “tonal ... Read More

Feed: R-bloggers. Author: Przemyslaw Biecek. Number of deaths in consecutive weeks. See the second plot for the whole story. Recently there have been several blog entries showing excessive number of deaths in different countries.Recently I discovered that in the eurostat database (1) one can find current data on the number of deaths, (2) this number is broken down by age, gender and geographical area, (3) one can use the ‘eurostat’ package to easily read and plot these data. It turns out that the difference in the number of deaths by age leads to interesting observations. Read the data from demo_r_mwk_10 table from ... Read More

Feed: Blog – Hazelcast. Author: Rafal Leszko. You want to build a Kubernetes Operator for your software. Which tool to choose from? Operator SDK with Helm, Ansible, or Go? Or maybe start from scratch with Python, Java, or any other programming language? In this blog post, I discuss different approaches to writing Kubernetes Operators and list each solution’s pros and cons. All that to help you decide which tool is the right one for you! You can find the source code for this blog post here. Introduction Kubernetes Operator is an application that watches a custom Kubernetes resource and performs ... Read More

Feed: R-bloggers. Author: Nathan. [This article was first published on R – Nathan Chaney, 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. I aggregated the visualizations from my previous two posts on COVID-19 cases in Arkansas and the U.S. on a separate landing page. I wanted a quick place to look a few times a week at how my home state is handling the coronavirus pandemic (spoiler alert: terrible at present). You can ... Read More

Feed: R-bloggers. Author: jmount. [This article was first published on R – Win Vector LLC, 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 ... Read More