September 2018

Le Monde puzzle [#1066]

September 18, 2018 | xi'an

The second Le Monde mathematical puzzle in the new competition is sheer trigonometry: When in the above figures both triangles ABC are isosceles and the brown segments are all of length 25cm, find the angle in A and the value of DC², respectively. This could have been solved by R ...

[Read more...]

«smooth» package for R. Intermittent state-space model. Part I. Introducing the model

September 18, 2018 | Ivan Svetunkov

Intro One of the features of functions of smooth package is the ability to work with intermittent data and the data with periodically occurring zeroes. Intermittent time series is a series that has non-zero values occurring at irregular frequency (Svetuknov and Boylan, 2017). Imagine retailer who sells green leap sticks. The ...

[Read more...]

Is A Freemium Model A Good Choice For SaaS-Products?

September 18, 2018 | Andrej Pivcevic

What do Spotify, Todoist, Evernote and LinkedIn have in common? They all run under a freemium business model. The freemium model became an especially popular business model in the digital startup, newspaper and service scene since the emergence of Software-as-a-Service. The problem is, how do you make sure you do ...

[Read more...]

Not Hotdog: A Shiny app using the Custom Vision API

September 18, 2018 | David Smith

I had a great time at the EARL Conference in London last week, and as always came away invigorated by all of the applications of R that were presented there. I'll do a full writeup of the conference later this week, but in the meantime I wanted to share the ... [Read more...]

Snakes in a Package: combining Python and R with reticulate

September 18, 2018 | Adnan Fiaz

When I first started working as a data scientist (or something like it) I was told to program in C++ and Java. Then R came along and it was liberating, my ability to do data analysis increased substantially. As my applications grew in size and complexity, I started to miss ...

[Read more...]

Case Study: How To Build A High Performance Data Science Team

September 18, 2018 | business-science.io - Articles

Artificial intelligence (AI) has the potential to change industries across the board, yet few organizations are able to capture its value and realize a real return-on-investment. The reality is that the transition to AI and data driven analysis is diff... [Read more...]

Dot-Pipe Paper Accepted by the R Journal!!!

September 17, 2018 | John Mount

We are thrilled to announce our (my and Nina Zumel’s) paper on the dot-pipe has been accepted by the R-Journal! A huge “thank you” to the reviewers and editors for helping us with this! You can find our article here (pdf here)!

[Read more...]

Multiple color (and fill) scales with ggplot2

September 17, 2018 | Code R

tl;dr: The functionality shown in this post is now on the ggnewscale package! ????. You can find the original code in this gist. A somewhat common annoyance for some ggplot2 users is the lack of support for multiple colour and fill scales. Perusing StackOverflow you can find many questions relating ...

[Read more...]

Machine Learning for Insurance Claims

September 17, 2018 | Posts on Tychobra

We are pleased to announce a new demo Shiny application that uses machine learning to predict annual payments on individual insurance claims for 10 years into the future. This post describes the basics of the model behind the above Shiny app, and walks through the model fitting, prediction, and simulation ideas ...

[Read more...]

Building Reproducible Data Packages with DataPackageR

September 17, 2018 | rOpenSci - open tools for open science

Sharing data sets for collaboration or publication has always been challenging, but it’s become increasingly problematic as complex and high dimensional data sets have become ubiquitous in the life sciences. Studies are large and time consuming; data collection takes time, data analysis is a moving target, as is the ...

[Read more...]

Access the Internet Archive Advanced Search/Scrape API with wayback (+ a links to a new vignette & pkgdown site)

September 17, 2018 | hrbrmstr

The wayback???? package has had an update to more efficiently retrieve mementos and added support for working with the Internet Archive’s advanced search+scrape API. Search/Scrape The search/scrape interface lets you examine the IA collections and download what you are after (programmatically). The main function is ia_...

[Read more...]

Principal Component Momentum?

September 17, 2018 | Ilya Kipnis

This post will investigate using Principal Components as part of a momentum strategy. Recently, I ran across a post from … Continue reading →

[Read more...]

Break Down: model explanations with interactions and DALEX in the BayArea

September 17, 2018 | smarterpoland

The breakDown package explains predictions from black-box models, such as random forest, xgboost, svm or neural networks (it works for lm and glm as well). As a result you gets decomposition of model prediction that can be attributed to particular variables. The version 0.3 has a new function break_down. It ... [Read more...]

3D Correspondence Analysis Plots in R Using Plotly

September 17, 2018 | Tim Bock

Back in the “olden days” of the 1970s it was apparently not unknown for statisticians to create 3D visualizations using tinkertoys. For some inexplicable reason, the advent... [Read more...]

Becoming a Data Scientist (Transcript)

September 17, 2018 | Hugo Bowne-Anderson

Here is a link to the podcast. Introducing Renée Teate Hugo: Hi there, Renée, and welcome to DataFramed. Renée: Hi Hugo. Great to be here. Hugo: It's great to have you on the show and I'm really excited to talk about all the things we're gonna talk ...

[Read more...]

Data visualization with statistical reasoning: seeing uncertainty with the bootstrap

September 17, 2018 | Robert

This blog post is one of a series highlighting specific images from my book Data Visualization: charts, maps and interactive … More

[Read more...]

Step Up your Dashboard with shinydashboard: Exercises (Part-2)

September 17, 2018 | Yanir Mor

The shinydashboard provides a well-designed dashboard theme for Shiny apps, and allows for an easy assembly of a dashboard from a couple of basic building blocks. The package is widely used in commercial environments as well, due to its neat features for building convenient and robust layouts. This exercise set ...

[Read more...]

Why Vectorize?

September 16, 2018 | statcompute

In the post (https://statcompute.wordpress.com/2018/09/15/how-to-avoid-for-loop-in-r), I briefly introduced the idea of vectorization and potential use cases. One might be wondering why we even need the Vectorize() function given the fact that it is just a wrapper and whether there is any material efficiency gain by vectorizing a ... [Read more...]

Implementations and defaults of the Support Vector Machine in R

September 16, 2018 | Philipp Probst

In this article I will present a benchmark analysis of different implementations of support vector machines in R. The three packages that I will compare are the most popular package e1071, the also well known package kernlab and the less well known package liquidSVM. [Read more...]

Taking Home Charlie

September 16, 2018 | Analysis of AFL

Build your own Brownlow Model G’day all, your friendly neighbourhood PhD student here. I am here to help you all build your own models. That is very different from what you might be used to which could consist of any one of the following scenarios. Here is a model ...

[Read more...]

« 1 … 5 6 7 8 9 … 15 »

R-bloggers

R news and tutorials contributed by hundreds of R bloggers

September 2018

Le Monde puzzle [#1066]

«smooth» package for R. Intermittent state-space model. Part I. Introducing the model

Is A Freemium Model A Good Choice For SaaS-Products?

Not Hotdog: A Shiny app using the Custom Vision API

Snakes in a Package: combining Python and R with reticulate

Case Study: How To Build A High Performance Data Science Team

Dot-Pipe Paper Accepted by the R Journal!!!

Multiple color (and fill) scales with ggplot2

Machine Learning for Insurance Claims

Building Reproducible Data Packages with DataPackageR

Access the Internet Archive Advanced Search/Scrape API with wayback (+ a links to a new vignette & pkgdown site)

Principal Component Momentum?

Break Down: model explanations with interactions and DALEX in the BayArea

3D Correspondence Analysis Plots in R Using Plotly

Becoming a Data Scientist (Transcript)

Data visualization with statistical reasoning: seeing uncertainty with the bootstrap

Step Up your Dashboard with shinydashboard: Exercises (Part-2)

Why Vectorize?

Implementations and defaults of the Support Vector Machine in R

Taking Home Charlie

September 2018

Never miss an update! Subscribe to R-bloggers to receive e-mails with the latest R posts. (You will not see this message again.)

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)