Tag: testing

Feed: R-bloggers. Author: Tim Bock. Infographics, dashboards, and reports often need to highlight or visualize a single number. But how do you highlight a single number so that it has an impact and looks good? It can be a big challenge to make a lonely, single number look great. In this post, I show 12 different ways of representing a single number. Most of these visualizations have been created automatically using R. When to create a visualization to represent a single number There are a number of situations in which it can be advantageous to create a visualization to represent ... Read More

Feed: R-bloggers. Author: Shirin's playgRound. I have written a blog post about why I love R and prefer it to other languages. The post is on my new site, but since it isn’t on R-bloggers yet I am also posting the link here: Working in Data Science, I often feel like I have to justify using R over Python. And while I do use Python for running scripts in production, I am much more comfortable with the R environment. Basically, whenever I can, I use R for prototyping, testing, visualizing and teaching. But because personal gut-feeling preference isn’t a very ... Read More

Feed: Planet MySQL; Author: Codership; Join Galera Cluster team!  Both jobs are key positions at Codership. You will influence a great deal to Galera Cluster user experience.  We have thousands of users.Galera Cluster QA EngineerThe QA Engineer/release manager will be responsible for working with the development team at Codership and create and execute tests, make builds of Galera Cluster and develop and extend test automation frameworks.You will be also working closely with MariaDB development and quality assurance teams to prioritize software bug fixes.TasksContinuously refine the QA process to improve product qualityTroubleshoot and work with the development team to isolate issuesCreate ... Read More

Feed: Planet MySQL; Author: Shahriyar Rzayev; Hi,In this post I am going to show some tricks on using BATS framework + PyTest + Python X Plugin things, to have combined, simple test solutions. Let’s describe MySQL X Plugin side, here is the full class: # Connecting to MySQL and working with a Session import mysqlx class MyXPlugin: def __init__(self, schema_name, collection_name): # Connect to a dedicated MySQL server self.session = mysqlx.get_session({ 'host': 'localhost', 'port': 33060, 'user': 'bakux', 'password': 'Baku12345', 'ssl-mode': mysqlx.SSLMode.DISABLED }) self.schema_name = schema_name self.collection_name = collection_name # Getting schema object self.schema = self.session.get_schema(self.schema_name) # Creating collection self.schema.create_collection(self.collection_name, reuse=True) ... Read More

Feed: Actian. Author: Emma McGrattan. Today we announce the introduction of the next release of Actian Vector in Hadoop, extending our support of Apache Spark to include direct access to native Hadoop file formats and tighter integration with Spark SQL and Spark R applications. In this release, we also incorporate performance improvements, integration with Hadoop security frameworks, and administrative enhancements. I’ll cover each of these in greater detail below.Combine Native Hadoop Tables with Vector Tables In previous releases, Vector in Hadoop required data to be stored in a proprietary format which optimized analytics performance and deliver great compression to reduce ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Ian Scofield. By Ian Scofield, Juan Villa, and Mike Ruiz GameDay is an immersive, team-based event we’ve hosted at AWS Summits and re:Invent over the past few years. The event has teams of players settling into a challenging—and hopefully entertaining—scenario as DevOps leads at Unicorn.Rentals, a popular startup minutes away from the very public launch of a widely anticipated product. For more information, see the GameDay website. Of course, we have a lot going on behind the scenes to make GameDay work. Beyond all the enthusiastic acting and silly props, you’ll find a ... Read More

Feed: The Internet of Things on AWS – Official Blog. Author: Olawale Oladehin. Post by Marcos Ortiz, an AWS Solutions ArchitectThe AWS IoT platform allows you to use substitution templates to augment the JSON data returned when a rule is triggered and AWS IoT performs a rule action. The syntax for a substitution template is ${expression}, where expression can be any expression supported by AWS IoT in SELECT or WHERE clauses. For more information about supported expressions, see AWS IoT SQL Reference. The substitution template is an important feature for AWS IoT customers, especially when there’s a need  to dynamically add some contextual information that is ... Read More

Feed: R-bloggers. Author: business-science.io - Articles. Employee turnvover (attrition) is a major cost to an organization, and predicting turnover is at the forefront of needs of Human Resources (HR) in many organizations. Until now the mainstream approach has been to use logistic regression or survival curves to model employee attrition. However, with advancements in machine learning (ML), we can now get both better predictive performance and better explanations of what critical features are linked to employee attrition. In this post, we’ll use two cutting edge techniques. First, we’ll use the h2o package’s new FREE automatic machine learning algorithm, h2o.automl(), to ... Read More

Feed: Planet big data. Author: Sandeep Raut. Gone are the days when brand communication was mostly made up of ads that appeared on billboards, in magazines and/or on television. Today, all of this is augmented with Digital revolution. The fashion industry is engaging with digital technology in new and different ways, in order to stay competitive and to engage with the ways that consumers are searching for jewelry, clothes, and accessories. Technology is turning the fashion industry inside out. Today, consumers are most active as digital shoppers in the Fashion industry and are demanding a heartening digital experience across channels ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Amelia Matteson. This article was written by Dan Shewan. If science-fiction movies have taught us anything, it’s that the future is a bleak and terrifying dystopia ruled by murderous sentient robots. Fortunately, only one of these things is true – but that could soon change, as the doomsayers are so fond of telling us.  Image via Abdul Rahid Artificial intelligence and machine learning are among the most significant technological developments in recent history. Few fields promise to “disrupt” (to borrow a favored term) life as we know it quite like machine learning, ... Read More