Tag: Git

Feed: R-bloggers. Author: R Views. Two hundred twenty-two new packages made it to CRAN in May, and it was more of an effort than usual to select the “Top 40”. Nevertheless, here they are in nine categories, Computational Methods, Data, Machine Learning, Mathematics, Medicine, Science, Statistics, Utilities and Visualization. Computational Methods dde v1.0.0: Implements a Dormand-Prince algorithm for solving “non-stiff” differential equations. See the vignette for examples. rTRNG v4.20-1: Implements an interface to Tina’s Random Number Generator C++ Library, and provides examples of how to use parallel RNG with RcppParallel. See Bauke (2018) for implementation details and the vignette for ... Read More

Feed: R-bloggers. Author: Abdul Majed Raja. Category Tags Regular Expression (Regex — often pronounced as ri-je-x or reg-x) is extremely useful while you are about to do Text Analytics or Natural Language Processing. But as much as Regex is useful, it’s also extremely confusing and hard to understand and always require (at least for me) multiple DDGing with click and back to multiple Stack Overflow links. What’s Regex According to Wikipedia, A regular expression, regex or regexp is a sequence of characters that define a search pattern. How does it look? This is the REGEX pattern to test the validity of a ... Read More

Feed: R-bloggers. Author: Paweł Przytuła. Machine learning models grow more powerful every week, but the earliest models and the most recent state-of-the-art models share the exact same dependency: data quality. The maxim “garbage in – garbage out” coined decades ago, continues to apply today. Recent examples of data verification shortcomings abound, including JP Morgan/Chase’s 2013 fiasco and this lovely list of Excel snafus.  Brilliant people make data collection and entry errors all of the time, and that isn’t just our opinion (although we have plenty of personal experience with it); Kaggle did a survey of data scientists and found that ... Read More

Feed: Planet PostgreSQL. Recently I gave a "deep dive" talk on the topic of PostgreSQL security, and I wanted to capture one part of that content into a blog since this format is both better for making that content stand on its own and for expanding on it a bit.Specifically, in this two-part blog, we will cover a PostgreSQL extension that I wrote called crunchy_check_access -- the motivation behind it and what it does -- and then use that extension to probe and understand the consequences of the default, out of the box, security of PostgreSQL. We will also examine ... Read More

Feed: R-bloggers. Author: Bruno Silva. In this post I’m going to explain how to use the package roadHotspots. This is just a development version located in github and I must say that I have no further intentions of continuing to work on this. If someone find this useful and would like to continue where I’ve left, please contact me. I’ve created this project just to demonstrate that with some (limited) programming knowledge, free open-source tools and approximately 20h of work it’s possible to develop a useful and simple software with a user-friendly interface and a great scientific potential. To install ... Read More

Feed: R-bloggers. Author: Kristopher Overholt. RStudio Connect 1.7.6 has been released and is now available for download. Thisrelease includes a new publishing method for Git-backed content, the ability forpublishers to manage vanity URLs for applications, full support for all SAMLauthentication providers, and other improvements and bug fixes. Updates New publishing method for Git-backed content This release adds the ability for data scientists to deploy content from Gitrepositories for individual applications within RStudio Connect. This publishing method is designed to allow data scientists to publish directlyfrom Git repositories to Connect, and have that content get updated at regularintervals without the need ... Read More

Feed: R-bloggers. Author: Posts on Lorenzo Busetto Website & Blog. A new version of MODIStsp (1.3.9) is on CRAN as of today ! This version: Related R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more... If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook ... Read More

Feed: R-bloggers. Author: Laura Ellis. I really like teaching people. My parents were both teachers, and I very seriously considered following in their footsteps. While I ultimately didn’t pursue a career in teaching, I’ve been fortunate to fill that void through teaching both formally and informally as a part of my career in tech. I’ve also written a lot of tutorials. I’d like to think that over the years I’ve learned a thing or two about making content that is easy to follow. In this blog post, I will share my bag of tips and tricks in the hopes that ... Read More

Feed: R-bloggers. Author: Keith Goldfeld. A few weeks ago, I was at the annual meeting of the NIH Collaboratory, which is an innovative collection of collaboratory cores, demonstration projects, and NIH Institutes and Centers that is developing new models for implementing and supporting large-scale health services research. A study I am involved with – Primary Palliative Care for Emergency Medicine – is one of the demonstration projects in this collaboratory. The second day of this meeting included four panels devoted to the design and analysis of embedded pragmatic clinical trials, and focused on the challenges of conducting rigorous research in ... Read More

Feed: R-bloggers. Author: Adrian Antico. Over 20% of Amazon’s North American retail revenue can be attributed to customers who first tried to buy the product at a local store but found it out-of-stock, according to IHL group (a global research and advisory firm specializing in technologies for retail and hospitality. In other words, many companies and local stores suck at forecasting. Accurate demand forecasts are necessary if you’re a retailer who has one of their competitors being Amazon. Want to lose business to Amazon? Then produce sh**ty demand forecasts. It is also actually one of the “low-hanging fruits” of a ... Read More