March 2019

Getting Help in R

March 4, 2019 | Rsquared Academy Blog

Introduction In this post, we will learn about the different methods of getting help in R. Often, we get stuck while doing some analysis as either we do not know the correct function to use or its syntax. It is important for anyone who is new to R to know ...

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Classification of historical newspapers content: a tutorial combining R, bash and Vowpal Wabbit, part 2

March 4, 2019 | Econometrics and Free Software

In part 1 of this series I set up Vowpal Wabbit to classify newspapers content. Now, let’s use the model to make predictions and see how and if we can improve the model. Then, let’s train the model on the whole data. Step 1: prepare the data The first step ... [Read more...]

Building Big Shiny Apps — A Workflow 2/2

March 4, 2019 | Colin Fay

Second part of the blog transcription of the talk I’ve given during the eposter session of the rstudio::conf(2019). Read the first part here. Building Big Shiny Apps: step by step Step 1: Designing Don’t rush into coding. I know you want to, because it’s what we like ...

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Calculate biotic threat of a stronger over a weaker species

March 4, 2019 | A.M. Barbosa

The bioThreat function below takes two vectors of favourability values at different localities for, respectively, a stronger and a weaker species (e.g., a superior vs. an inferior competitor, or an invasive predator vs. an unadapted native prey), and calculates the … Continue reading → [Read more...]

Getting Your First Data Science Job

March 4, 2019 | Hugo Bowne-Anderson

Hugo Bowne-Anderson, the host of DataFramed, the DataCamp podcast, recently interviewed Chris Albon, Data Scientist at Devoted Health. Here is the podcast link. Introducing Chris Albon Hugo: Hi there, Chris, and welcome to DataFramed. ...

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The fastest cyclists of Europe live in …

March 4, 2019 | Sebastian Wolf

The fastest cyclists of Europe live in …Analyzing STRAVA data to find out which city has the faster cyclists with R and R-shiny. My contribution to the shiny contest.A shiny app visualizing STRAVA segments in London and Paris and seeing where peopl...

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The fastest cyclists of Europe live in …

March 4, 2019 | Sebastian Wolf

The fastest cyclists of Europe live in …

March 4, 2019 | Sebastian Wolf

Analyzing STRAVA data to find out which city has the faster cyclists with R and R-shiny. My contribution to the shiny contest. STRAVA is one of the most popular fitness tracking apps. It not only allows users to track their own activities but also following professionals. STRAVA made running and ...

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Using parameters in Rmarkdown

March 4, 2019 | nsaunders

Nothing new or original here, just something that I learned about quite recently that may be useful for others. One of my more “popular” code repositories, judging by Twitter, is – well, Twitter. It mostly contains Rmarkdown reports which summarise meetings and conferences by analysing usage of their associated Twitter hashtags. ... [Read more...]

Sentiment Analysis, Word Embedding, and Topic Modeling on Venom Reviews

March 4, 2019 | Riki Saito

Introduction With the drastic increase in the availability of text data on the web over the past decade, the field of Natural Language Processing has also had some great strides of advancement at an unprecedented rate. Like many topics in Machine Learning and AI, the rate of advancement in NLP ...

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2019-01 A Geometry Engine Interface for ‘grid’

March 3, 2019 | pmur002

This report describes a new function in ‘grid’ called grobCoords and a new package called ‘gridGeometry’ that combines grobCoords with the ‘polyclip’ package to provide ... [Read more...]

Polished human cognitive characteristics chapter

March 3, 2019 | Derek Jones

It has been just over two years since I release the first draft of the Human cognitive characteristics chapter of my evidence-based software engineering book. As new material was discovered, it got added where it seemed to belong (at the time), no effort was invested in maintaining any degree of ... [Read more...]

Web Scraping Amazon Reviews (March 2019)

March 3, 2019 | Riki Saito

Introduction Web Scraping is one of the most common (and sometimes tedious) data collection tasks nowadays in Data Science. It is an essential step in gather data – especially text data – in order to perform various Natural Language Processing tasks, such as Sentiment Analysis, Topic Modeling, and Word Embedding. In this ...

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CRAN Mirror “Security”

March 3, 2019 | hrbrmstr

In the “Changes on CRAN” section of the latest version of the The R Journal (Vol. 10/2, December 2018) had this short blurb entitled “CRAN mirror security”: Currently, there are 100 official CRAN mirrors, 68 of which provide both secure downloads via ‘https’ and use secure mirroring from the CRAN master (via rsync through ...

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Developing Data Products

March 3, 2019 | John

I had to develop an RStudio shiny application as a part of final project in the Developing Data Products course in the Coursera Data Science Specialization track. The Shiny application calculates your maximum Heart Rate and the target Heart Rate zones for the chosen age. It includes: Its build with ... [Read more...]

Offline visualization of geolocation data from Statcounter logs with R

March 3, 2019 | garuda

Statcounter is a nice web traffic analysis tool. It collects ISP and geolocation data of visitors of a tracked site. The data is logged on the Statcounter site and can be downloaded by the tracked site’s owner in XLSX or CSV format. In this article I want to show ...

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How to use Google Search Console API with R

March 3, 2019 | Jean-Christophe Chouinard

Automation is a big hub in SEO and R is one of the greatest tools to help you do just that. But first, you need to be able to understand how to collect data from APIs. In this guide, I will show you how to connect to the Google Search ...

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Run Remote R Scripts with Mobile Device using E-mail Triggers

March 2, 2019 | Kenith Grey

Have you ever been on the road and wished you could run an R script from your mobile device and see the results? Maybe you’re a business person who needs a quick update on a project or production schedule. Or, possibly you need an up-to-the-minute report out for a ... [Read more...]

Classification of historical newspapers content: a tutorial combining R, bash and Vowpal Wabbit, part 1

March 2, 2019 | Econometrics and Free Software

Can I get enough of historical newspapers data? Seems like I don’t. I already wrote four (1, 2, 3 and 4) blog posts, but there’s still a lot to explore. This blog post uses a new batch of data announced on twitter: For all who love to analyse text, the BnL released ...

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Color palettes inspired by Islamic art

March 2, 2019 | R on From System to System

This post is about my new R package IslamicArt, which provides color palettes inspired by Islamic art. Disclaimer: While I accept the Islamic theology, ethnically speaking, I’m not from the Middle East, North Africa, Central Asia, South Asia, or Southeast Asia. However, I do deeply appreciate art and philosophy ...

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

March 2019

Getting Help in R

Classification of historical newspapers content: a tutorial combining R, bash and Vowpal Wabbit, part 2

Building Big Shiny Apps — A Workflow 2/2

Calculate biotic threat of a stronger over a weaker species

Getting Your First Data Science Job

The fastest cyclists of Europe live in …

The fastest cyclists of Europe live in …

The fastest cyclists of Europe live in …

Using parameters in Rmarkdown

Sentiment Analysis, Word Embedding, and Topic Modeling on Venom Reviews

2019-01 A Geometry Engine Interface for ‘grid’

Polished human cognitive characteristics chapter

Web Scraping Amazon Reviews (March 2019)

CRAN Mirror “Security”

Developing Data Products

Offline visualization of geolocation data from Statcounter logs with R

How to use Google Search Console API with R

Run Remote R Scripts with Mobile Device using E-mail Triggers

Classification of historical newspapers content: a tutorial combining R, bash and Vowpal Wabbit, part 1

Color palettes inspired by Islamic art

March 2019

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