Tag: DATE

Feed: R-bloggers. Author: R on OSM. [This article was first published on R on OSM, 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 our last post, we discussed using the historical average return as one method for setting capital market expectations prior to constructing a satisfactory portfolio. We glossed over setting expectations for future volatility, mainly because it is such a thorny issue. However, we read an excellent tutorial on GARCH models ... Read More

Feed: R-bloggers. Author: An Accounting and Data Science Nerd's Corner. Downloading and data cleaning Downloading the data form the Oxford homepage is straightforward. Automatic column detection by read_xlsx() fails so I provide columns manually. suppressPackageStartupMessages({ library(kableExtra) library(dplyr) library(tidyr) library(lubridate) library(tidycovid19) library(ggplot2) library(stringr) library(readxl) library(gghighlight) library(RCurl) }) dta_url The file is organized by country-date and sorted by date. As in essence interventions data is event driven for each country (meaning that interventions happen infrequently at certain dates), I sort the data by country-date to get a better view on its structure. Also, I adjust some names and concentrate on the policy ... Read More

Feed: All Oracle Press Releases. Oracle Corporation (NYSE:ORCL) today announced that it received notice of an unsolicited "mini-tender" offer by Ponos Industries LLC (Ponos Industries) to purchase up to 2,000,000 shares of Oracle capital stock, which represents approximately 0.063% of the common shares outstanding, at a price of $50.00 per share in cash. Please be aware that shareholders are not required to respond to Ponos Industries’ offer. Oracle does not endorse Ponos Industries’ unsolicited mini-tender offer and recommends that Oracle shareholders do not tender their shares in the offer. Ponos Industries has included in the terms of its offer a ... Read More

Feed: Planet PostgreSQL. Depending on your workload, the planning time can represent a significant part of the overal query procesing time. This is especially import in OLTP workload, but OLAP queries with numerous tables being joined and an aggressive configuration on the JOIN order search can also lead to hight planning time. Planning counters in pg_stat_statements Previously, pg_stat_statements was only keeping track of the execution part of a query processing: the number of execution, cumulated time, but also minimum, maximum, mean and also the standard deviation. With PostgreSQL 13, you’ll also have those metrics for the planification part! commit 17e03282241c6ac58a714eb0c3b6a8018cf6167a ... Read More

Feed: R-bloggers. Author: Posts | Joshua Cook. [This article was first published on Posts | Joshua Cook, 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. Introduction Caching intermediate objects in R can be an efficient way to avoidre-evaluating long-running computations. The general process is alwaysthe same: run the chunk of code once, store the output to disk, and loadit up the next time the same chunk is run. There are, of course,multiple packages ... Read More

Feed: Planet MySQL; Author: MySQL Performance Blog; This is a three-part blog series. Be on the lookout for parts two and three in the coming days.There was no reason to plan for it, but the load on your system increased 100%, 300%, 500%, and your MySQL database has to support it. This is a reality many online systems have to deal with these days. This series focuses on dealing with the unexpected high traffic event as it is happening.There are also a lot of things you can do proactively, which we covered in “Prepare Your Databases for High Traffic on ... Read More

Feed: Liquid Web. Author: Andrej Walilko; Getting ready for another server migration and unsure of what steps you need to take? Server migrations may need to happen for a number of reasons. Sometimes, a user decides to change hosting providers; what worked well in the past is no longer adequate for the future. Other times, a user needs to move to a larger or smaller server, and takes the opportunity to choose different infrastructure entirely. In fact, if your website or application is changing or growing over the months and years, then it is nearly inevitable that at some point ... Read More

Feed: Planet MySQL; Author: Continuent; In this blog post, we talk about the basic function and features of the Tungsten Connector.The Tungsten Connector is an intelligent MySQL proxy that provides key high-availability and read-scaling features. This includes the ability to route MySQL queries by inspecting them in-flight. Connector Basics Understanding the Two Key Features The most important function of the Connector is failover handling. When the cluster detects a failed master because the MySQL server port is no longer reachable, the Connectors are signaled and traffic is re-routed to the newly-elected Master node. Next is the ability to route MySQL ... 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: Microsoft Azure Blog. Author: Sam George. IoT is reaching mainstream adoption across businesses in all market segments. Our vision is to enable Azure to be the world’s computer, giving businesses real-time visibility into every aspect of their operations, assets, and products. Businesses are harnessing signals from IoT devices of all shapes and sizes, from the very smallest microcontroller units (MCUs) to very capable microprocessor units (MPUs). This presents a great opportunity for collaboration between semiconductor manufacturers with extensive expertise in MCUs/MPUs and Azure IoT, an industry leader in IoT. It has been nearly one year since we acquired Express ... Read More