Tag: Graph

Feed: SAS Blogs. Author: Robert Allison. The flu season has started here in the U.S., and according to the Centers for Disease Control and Prevention (CDC) data it has caused 214 deaths in the first week of 2020. Is this number higher, or lower, than usual? When does the flu season start, and how long does it last? Sounds like a fine excuse to create some graphs - follow along, and I'll show you how! The Data The CDC has a flu page, and towards the bottom there's a "Pneumonia and Influenza (P&I) Mortality Surveillance" graph (the black & red ... Read More

Feed: Cambridge Intelligence. Author: Corey Lanum. We’re often asked about visualizing very large graphs. It’s a common belief that if a few nodes can generate some insight, a few thousand nodes will generate lots of insight. That’s not automatically the case. Many graphs are too densely connected to be usefully visualized in one go.In this blog, we’ll explore some strategies for visualizing large graphs in a meaningful way.Visualizing huge graph datasetsHere’s a graph with 20,000 nodes and 20,000 links.A randomly-generated graph of 20,000 nodes and 20,000 linksAlthough the powerful graph layout does a good job of highlighting the overall graph ... Read More

Feed: Redis Labs. Author: Jane Paek. A little snow couldn’t stop the Redis community from coming out in force to our first Redis Day of the year in Seattle. Held on January 13–14 at the Hyatt Regency, Redis Day Seattle brought together some 300 developers, engineers, software architects, programmers, and business professionals for intensive training, thought leadership, and networking. On day one, Redis users from beginners to experts packed the conference room for a full schedule of hands-on training covering everything from Redis basics to Redis Streaming Architectures, Probabilistic Data Structures, and RediSearch. The following day, attendees heard from representatives of ... Read More

Feed: Planet MySQL; Author: Yves Trudeau; As the second part of the earlier post Give Love to Your SSDs – Reduce innodb_io_capacity_max! we wanted to put together some concepts on how InnoDB flushing works in recent Percona Server for MySQL versions (8.0.x prior to 8.0.19, or 5.7.x). It is important to understand this aspect of InnoDB in order to tune it correctly. This post is a bit long and complex as it goes very deep into some InnoDB internals.InnoDB internally handles flush operations in the background to remove dirty pages from the buffer pool. A dirty page is a page ... Read More

Feed: R-bloggers. Author: R on Coding Club UC3M. [This article was first published on R on Coding Club UC3M, 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. by María Medina Pérez According to CIS’ barometer, political corruption is the second biggest concern in Spain, only behind unemployment, and has been in this position since 2013, as we see Spanish news talking about open trials and new investigations on a regular basis. The European ... Read More

Feed: Planet MySQL; Author: MyDBOPS; As a part of Mydbops Consulting we have a below problem statement from one of our client. “We have a high powered server for reporting which in turn powers our internal dashboard for viewing the logistics status.Even with a high end hardware, we had a heavy CPU usage and which in turn triggers spikes in replication lag and slowness. Below is the hardware configuration.“ OS : Debian 9 (Stretch) CPU : 40 RAM : 220G (Usable) Disk : 3T SSD with 80K sustained IOPS. MySQL : 5.6.43-84.3-log Percona Server (GPL) Datasize : 2.2TB Below is ... Read More

Feed: MemSQL Blog. Author: Rick Negrin. There is a trend in industry which says that modern applications need to be built on top of one or more special-purpose databases. That every application benefits from using the best-of-breed technology for each requirement. And that the plethora of special-purpose options available from certain cloud providers is reasonable to manage. That’s all BUNK. The reality is that navigating the choices, figuring out how to use them effectively, and dealing with the ETL and inevitable data sprawl, is so difficult that the pain far outweighs any technical advantage you might get. In the vast ... Read More

Feed: Cambridge Intelligence. Author: Andrew Disney. Colors can make or break your data visualization.A carefully selected color palette helps you to harness the pre-attentive processing powers of the human brain, and makes insight clearer and easier to find. A badly chosen color palette obscures the information your users need to understand, and makes your data visualization less effective and harder to use.This blog post explores some data visualization examples, basic color theory, and explains how it can help you design visualizations that look good, and make data more compelling.Let’s start with some examples to show you the importance of choosing ... Read More

Feed: SAS Blogs. Author: Rick Wicklin. From the early days of probability and statistics, researchers have tried to organize and categorize parametric probability distributions. For example, Pearson (1895, 1901, and 1916) developed a system of seven distributions, which was later called the Pearson system. The main idea behind a "system" of distributions is that for each feasible combination of skewness and kurtosis, there is a member of the system that achieves the combination. A smaller system is the Johnson system (Johnson, 1949), which contains only four distributions: the normal distribution, the lognormal distribution, the SB distribution (which models bounded distributions), ... Read More

Feed: Puppet.com Blog RSS Feed. Author: ; We are pleased to announce the technical preview release of the official Visual Studio Code Puppet extension! What started out as a side project done during James Pogran and Glenn Sarti's spare time, has turned into a full-featured official Puppet extension.The extension supports the following platforms:Microsoft WindowsMacOSLinuxHow can I install the Puppet VSCode extension?You can install the Puppet VSCode extension either from the Extensions tab in your VSCode editor, through the Visual Studio Code Extension gallery, or manually after downloading the extension.You can find more detailed instructions on installation on the readme.What can ... Read More