February 2019

Organizing R Research Projects: CPAT, A Case Study

February 4, 2019 | ntguardian

Introduction Months ago, I asked a question to the community: how should I organize my R research projects? After writing that post, doing some reading, then putting a plan in practice, I now have my own answer. First, some background. In the early months of 2016 I began a research project ... [Read more...]

An overview of the NLP ecosystem in R (#nlproc #textasdata)

February 4, 2019 | Super User

At BNOSAC, R is used a lot to perform text analytics as it is an excellent tool that provides anything a data scientist needs to perform data analysis on text in a business settings. For users unfamiliar with all the possibilities that the wealth of R ... [Read more...]

Dashboard for Sales Trends in Retail

February 3, 2019 | Radha Murali Vundavalli

Overview Retail is probably the most talked about industry when it comes to disruption these days. Empty malls are a common blog topic and unusually high number of bankruptcies span across all subsectors. Some of the familiar names that filed for bankruptcy in the last few years span from well ...

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WooCommerce Image Gallery | Step by Step, Automate with R

February 3, 2019 | Kenith Grey

Setting up a WooCommerce image gallery for your shop is a grueling process if you use the online forms. Thankfully, you can import goods and setup an image gallery using a simple CSV file. Now, if you have a few products and a few images for each product, preparing the ...

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Sobol Sequence vs. Uniform Random in Hyper-Parameter Optimization

February 3, 2019 | statcompute

Tuning hyper-parameters might be the most tedious yet crucial in various machine learning algorithms, such as neural networks, svm, or boosting. The configuration of hyper-parameters not only impacts the computational efficiency of a learning algorithm but also determines its prediction accuracy. Thus far, manual tuning and grid searching are still ...

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Using tooltips in unexpected ways

February 3, 2019 | Joshua Kunst

Highcharts tooltips are one of most underated features. In the tooltips you can easily render html, that means we can put images, tables even charts. So the possibilities are almost limitless. [Read more...]

Building a shiny app to explore historical newspapers: a step-by-step guide

February 3, 2019 | Econometrics and Free Software

Introduction I started off this year by exploring a world that was unknown to me, the world of historical newspapers. I did not know that historical newspapers data was a thing, and have been thoroughly enjoying myself exploring the different datasets published by the National Library of Luxembourg. You can ... [Read more...]

The Face of (Dis)Agreement – Intraclass Correlations

February 3, 2019 | R on Will Hipson

I was recently introduced to Google Dataset Search, an extension that searches for open access datasets. There I stumbled upon this dataset on childrens’ and adult’s ratings of facial expressions. The data comes from a published article by Vesker et al. (2018). Briefly, this study involved having adults and 9-year-old ...

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A little trick for debugging Shiny

February 3, 2019 | Colin Fay

This is gonna be a short post about a little trick I’ve been using while developing Shiny Apps. (Spoiler: nothing revolutionary) A browser anywhere, anytime The first thing to do is to insert an action button, and a browser() in the observeEvent() watching this button. This is a standard ...

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Send UDP Probes (with payloads) and Receive/Process Responses in R

February 3, 2019 | hrbrmstr

We worked pretty hard over at $DAYJOB on helping to quantify and remediate a fairly significant configuration weakness in Ubiquiti network work gear attached to the internet. Ubiquiti network gear — routers, switches, wireless access points, etc. — are enterprise grade components and are a joy to work with. Our home network ...

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Function Objects and Pipelines in R

February 3, 2019 | John Mount

Composing functions and sequencing operations are core programming concepts. Some notable realizations of sequencing or pipelining operations include: Unix’s |-pipe CMS Pipelines. F#‘s forward pipe operator |__. Haskel’s Data.Function & operator. The R magrittr forward pipe. Scikit-learn‘s sklearn.pipeline.Pipeline. The idea is: many important calculations can ... [Read more...]

Retail Data Visualization with R and Shiny

February 3, 2019 | Qifan Wang

Introduction Because of my marketing background, finding information hiding wihtin a marketing dataset is always an interesting topic to me. It makes me feel a sense of accomplishment when I cleaned up a very messy large dataset, and finally discover some insights from it. Therefore, I've decided to practice my ...

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Building Our Own Open Source Supercomputer with R and AWS

February 3, 2019 | Laurens Geffert

How to build a scaleable computing cluster on AWS and run hundreds or thousands of models in a short amount of time. We will completely rely on R and open source R packages. This is post 1 out of 2. Introduction An ever-increasing number of busines... [Read more...]

Switching Regressions: Cluster Time-Series Data and Understand Your Development

February 3, 2019 | Andrej Pivcevic

This in-depth guide shows you step by step how to apply a switching regression model, the associated disadvantages as well the advantages. The post Switching Regressions: Cluster Time-Series Data and Understand Your Development appeared first on Economalytics.

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Settling class action lawsuits with conjoint analysis and R (+a conjoint shiny app)

February 3, 2019 | R on Adi Sarid's personal blog

A few days ago I presented at the 9th Israeli class action lawsuit conference. You’re probably asking yourself what would a data scientist do in a room full of lawyers? Apparently, there is a lot to do… Here’s the story: being in market research, we get a lot ...

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R Package Update: urlscan

February 3, 2019 | hrbrmstr

The urlscan???? package (an interface to the urlscan.io API) is now at version 0.2.0 and supports urlscan.io’s authentication requirement when submitting a link for analysis. The service is handy if you want to learn about the details — all the gory technical details — for a website. For instance, say ...

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Synthesising Multiple Linked Data Sets and Sequences in R

February 3, 2019 | Daniel Oehm

In my last post I looked at generating synthetic data sets with the ‘synthpop’ package, some of the challenges and […] The post Synthesising Multiple Linked Data Sets and Sequences in R appeared first on Daniel Oehm | Gradient Descending. [Read more...]

Creating empty data frames with dfTemplate() and dfTemplateMatch()

February 2, 2019 | R-bloggers on inSileco

Creating a data frame is fairly simple but when you need to create a large empty data frame with columns that have different classes it takes several command lines. A few days ago, I decided to write a function to simplify this operation and I came to realize that such ... [Read more...]

Riddler 1st February 2019

February 2, 2019 | rstats on Robert Hickman

Riddler Classic In my spare time I enjoy solving 538’s The Riddler column. This week I had a spare few hours waiting for the Superbowl to start and decided to code up a solution to the latest problem to keep me busy. The question revolves around a card game in ... [Read more...]

The power of tapping into your community for support

February 2, 2019 | Fellgernon Bit - rstats

This week the owner of my favorite Mexican restaurant in Baltimore, Rosalyn Vera, got death and arson1 threats. I could have been a bystander, but I tapped into my network and asked for help and she has received it. It’s been great to see the power of the community ... [Read more...]

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February 2019

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