Taking a Shot at cdcfluview v0.7.0 (a.k.a. The Dangers of Relying on ‘Hidden’ APIs)

November 6, 2017
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Taking a Shot at cdcfluview v0.7.0 (a.k.a. The Dangers of Relying on ‘Hidden’ APIs)

Unlike @noamross, I am not an epidemiologist (NOTE: Noam battles pandemics before breakfast, so be super nice to him) but I do like to find kindred methodologies in other disciplines to help foster the growth of cybersecurity into something beyond it’s current Barnum & Bailey state. I also love finding and exposing hidden APIs and... Continue reading →

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A history-oriented introduction to R for Excel users

November 6, 2017
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A history-oriented introduction to R for Excel users

While spreadsheets are fine tools for collecting and sharing data, the temptation is often there to also use them for in-depth analysis better suited to reproducible systems like R. Historian Jesse Sadler recently published the useful guide Excel vs R: A Brief Introduction to R, which provides useful advice to data analysts currently using spreadsheets on how to transition...

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Scraping Javascript-rendered web content using R

November 6, 2017
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Scraping Javascript-rendered web content using R

Web Scraping, which is an essential part of Getting Data, used to be a very straightforward process just by locating the html content with xpath or css selector and extracting the data until Web developers started inserting Javascript-rendered content in the web page. Hence a css selector or an xpath pointing to a browser-generated / Related Post Analysing Cryptocurrency Market...

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13 Jobs for R users from around the world (2017-11-06)

November 6, 2017
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13 Jobs for R users from around the world (2017-11-06)

To post your R job on the next post Just visit  this link and post a new R job  to the R community. You can post a job for  free  (and there are also “featured job” options available for extra exposure). Current R jobs Job seekers:  please follow the links below to learn more and apply for your R job of interest: Featured Jobs...

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A teeny tiny Twitter tale

November 5, 2017
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A teeny tiny Twitter tale

Use of social media within the NHS to raise awareness of dangerous conditions - We had an event at work today, bringing together clinicians and QI staff across a range of disciplines and services to provide some education and raise awareness ...

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rstudio::conf(2018) program now available!

November 5, 2017
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rstudio::conf 2018, the conference on all things R and RStudio, is only a few months away. Now is the time to claim your spot or grab one of the few remaining seats at Training Days! REGISTER NOW Whether you’re already registered or still ...

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Setting fire to deployment: Heroku

November 5, 2017
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Setting fire to deployment: Heroku

There are many ways to utilize fiery: It can be the engine behind a local running web-app, it can serve a dynamic site running on your own server, or it can serve a more demanding service by running in the cloud. In this post I’m going to focus on one way of achieving the latter, namely by deploying a...

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EARL Presentation on HR Analytics: Using ML to Predict Employee Turnover

EARL Presentation on HR Analytics: Using ML to Predict Employee Turnover

The EARL Boston 2017 conference was held November 1 - 3 in Boston, Mass. There were some excellent presentations illustrating how R is being embraced in enterprises, especially in the financial and pharmaceutical industries. Matt Dancho, founder of Bus...

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pinp 0.0.4: Small tweak

November 5, 2017
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pinp 0.0.4: Small tweak

A maintenance release of our pinp package for snazzier one or two column vignettes is now on CRAN as of yesterday. In version 0.0.3, we disabled the default \pnasbreak command we inherit from the PNAS LaTeX style. That change turns out to have been t...

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Rick and Morty and Tidy Data Principles (Part 3)

November 5, 2017
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Rick and Morty and Tidy Data Principles (Part 3)

Motivation The first and second part of this analysis gave the idea that I did too much scrapping and processing and that deserves more analysis to use that information well. In this third and final part I'm also taking a lot of ideas from Julia Silge's blog. In the GitHub repo of this project you shall find not just Rick...

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Mythical Generic Overhead

November 4, 2017
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Mythical Generic Overhead

Computational overhead analysis of using generic+method approach instead of if-else sequence and switch statement. Prologue Earlier this week I came across this tweet from Thomas (author of many useful and powerful R packages): Should If else blocks that checks class always be converted to generic+methods? Please discuss #rstats— Thomas Lin Pedersen (@thomasp85)...

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You beautiful, naïve, sophisticated newborn series

November 4, 2017
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You beautiful, naïve, sophisticated newborn series

My husband and I recently started watching the wonderful series “Parks and recreation” which was recommended to me by my fellow R-Lady Jennifer Thompson in this very convincing thread. The serie was even endorsed by other R-Ladies. Jennifer told me...

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information retrieval document search using vector space model in R

November 4, 2017
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information retrieval document search using vector space model in R

Introduction:In this post, we learn about building a basic search engine or document retrieval system using Vector space model. This use case is widely used in information retrieval systems. Given a set of documents and search term(s)/query we need to retrieve relevant documents that are similar to the search query. Problem statement:The problem statement explained above...

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tint 0.0.4: Small enhancements

November 3, 2017
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tint 0.0.4: Small enhancements

A maintenance release of the tint package arrived on CRAN earlier today. Its name expands from tint is not tufte as the package offers a fresher take on the Tufte-style for html and pdf presentations. A screenshot of the pdf variant is below. Thi...

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Taming exam results in pdf with pdftools

November 3, 2017
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Taming exam results in pdf with pdftools

You can also check this post, written in #blogdown, here: taming-exam-results-with-pdf. Introduction There are several ways to mine tables and other content from a pdf, using R. After a lot of trial & error, here’s how I managed to extract … Sigue leyendo →

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New RStudio cheat sheet: Strings in R

November 3, 2017
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New RStudio cheat sheet: Strings in R

The RStudio team has created another very useful cheat sheet for R: Working with Strings. This cheat sheet provides an example-laden menu of operations you can perform on strings (character verctors) in R using the stringr package. While base R provides a solid set of string manipulation functions, the stringr package functions are simpler, more consistent (making them easy...

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How to identify risky bank loans using C.50 decision trees

November 3, 2017
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How to identify risky bank loans using C.50 decision trees

This tutorial has been taken from Machine Learning with R Second Edition   by Brett Lantz. Use the code  MLR250RB at the checkout to save 50% on the RRP. Or pick up this title with 4 others for just $50 – get the R-Bloggers bundle. The global financial crisis of 2007-2008 highlighted the importance of transparency … Continue reading How...

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Let X=X in R

November 3, 2017
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Let X=X in R

Our article "Let’s Have Some Sympathy For The Part-time R User" includes two points: Sometimes you have to write parameterized or re-usable code. The methods for doing this should be easy and legible. The first point feels abstract, until you find yourself wanting to re-use code on new projects. As for the second point: I … Continue reading Let...

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I, For One, Welcome Our Forthcoming New robots.txt Overlords

November 3, 2017
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I, For One, Welcome Our Forthcoming New robots.txt Overlords

Despite my week-long Twitter consumption sabbatical (helped — in part — by the nigh week-long internet and power outage here in Maine), I still catch useful snippets from folks. My cow-orker @dabdine shunted a tweet by @terrencehart into a Slack channel this morning, and said tweet contained a link to this little gem. Said gem... Continue reading →

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Gold-Mining – Week 9 (2017)

November 2, 2017
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Week 9 Gold Mining and Fantasy Football Projection Roundup now available. Go get that free agent gold! The post Gold-Mining – Week 9 (2017) appeared first on Fantasy Football Analytics.

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R-Admins Community

November 2, 2017
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Today we’re pleased to announce a new category of community.rstudio.com dedicated to R administrators: https://community.rstudio.com/c/r-admin. There are already multiple places where you can get help with R, Shiny, the RStudio IDE, and the tidyverse. There are, however, far fewer resources for R admins: people who work with R in production, in large organizations, and in complex environments. We hope this...

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Problems In Estimating GARCH Parameters in R

November 2, 2017
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Problems In Estimating GARCH Parameters in R

In this post I detail problems that emerge when trying to estimate the parameters of GARCH models.

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Role Playing with Probabilities: The Importance of Distributions

November 2, 2017
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Role Playing with Probabilities: The Importance of Distributions

by Jocelyn Barker, Data Scientist at Microsoft I have a confession to make. I am not just a statistics nerd; I am also a role-playing games geek. I have been playing Dungeons and Dragons (DnD) and its variants since high school. While playing with my friends the other day it occurred to me, DnD may have some lessons to...

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Exploring, Clustering, and Mapping Toronto’s Crimes

November 2, 2017
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Exploring, Clustering, and Mapping Toronto’s Crimes

Motivation I have had a lot of fun exploring The US cities’ Crime data via their Open Data portals. Because Toronto’s crime data was simply not available. Not until the summer of this year, Toronto police launch a public safety data portal to increase transparency between the public and officers. I recently have had the Related Post Spring Budget 2017:...

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Yet-Another-Power Outages Post : Full Tidyverse Edition

November 2, 2017
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Yet-Another-Power Outages Post : Full Tidyverse Edition

This past weekend, violent windstorms raged through New England. We — along with over 500,000 other Mainers — went “dark” in the wee hours of Monday morning and (this post was published on Thursday AM) we still have no utility-provided power nor high-speed internet access. The children have turned iFeral, and being a remote worker... Continue reading →

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shadow text effect in grid and ggplot2 graphics

November 2, 2017
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shadow text effect in grid and ggplot2 graphics

After the release of meme package, I received several feedbacks from users. The most usefule one is the comment on my blog post: Sercan Kahveci Greetings Mr. Yu, I am very happy that this package exists. Thank you for making it! I would like to request a feature, to ensure the package is able to compete with professional meme-creation tools like memegenerator and...

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Explore Predictive Maintenance with flexdashboard

November 1, 2017
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Explore Predictive Maintenance with flexdashboard

I have written the following post about Predictive Maintenance and flexdashboard at my company codecentric’s blog: Predictive Maintenance is an increasingly popular strategy associated with Industry 4.0; it uses advanced analytics and machine learni...

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Explore Predictive Maintenance with flexdashboard

November 1, 2017
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Explore Predictive Maintenance with flexdashboard

I have written the following post about Predictive Maintenance and flexdashboard at my company codecentric’s blog: Predictive Maintenance is an increasingly popular strategy associated with Industry 4.0; it uses advanced analytics and machine lea...

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Image Convolution in R using Magick

Image Convolution in R using Magick

Release 1.4 of the magick package introduces a new feature called image convolution that was requested by Thomas L. Pedersen. In this post we explain what this is all about. Kernel Matrix The new image_convolve() function applies a kernel over the image. Kernel convolution means that each pixel value is recalculated using the weighted neighborhood sum defined in the kernel matrix. For example...

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