PCA plot with fill, color, and shape all together
When I plotted the PCA results (e.g. scatter plot for PC1 and PC2) and was about to annotate the dataset with different covariates (e.g. gender, diagnosis, and ethic group), I...continue reading.
Category: R
Create stylish tables in R using formattable
Enhance your data storytelling skills by creating display tables with pizazz.continue reading.
By-Group Summary with SparkR – Follow-up for A Reader Comment
A reader, e.g. Mr. Wayne Zhang, of my previous post (https://statcompute.wordpress.com/2018/09/03/playing-map-and-reduce-in-r-by-group-calculation) made a good comment that “Why not use directly either Spark or H2O to derive such computations without involving...continue reading.
Recreating Michael Betancourt’s Bayesian modeling course from his online materials
Several people wanted to have the slides from Betancourt’s lectures at SMLP2018. It is possible to recreate most of the course from his writings:1. Intro to probability:https://betanalpha.github.io/assets/case_studies/probability_theory.html2. Workflow…continue reading.
sjrdata: all SCImago Journal & Country Rank data, ready for R
SCImago Journal & Country Rank provides valuable estimates of academic journals’ prestige. The data is freely available at the project website and is distributed for deeper analysis in forms of...continue reading.
Union Multiple Data.Frames with Different Column Names
On Friday, while working on a project that I needed to union multiple data.frames with different column names, I realized that the base::rbind() function doesn’t take data.frames with different columns...continue reading.
Differences in Word Use Across Music Genres in Pitchfork Album Reviews
In this post we will return to the data on Pitchfork music reviews, parts of which I’ve analyzed previously. The goal of this post will be to gain an understanding...continue reading.
Applications of R presented at EARL London 2018
During the EARL (Enterprise Applications of the R Language) conference in London last week, the organizers asked me how I thought the conference had changed over the years. (This is...continue reading.
A Performance Benchmark of Different AutoML Frameworks
In a recent blog post our CEO Sebastian Heinz wrote about Google’s newest stroke of genius – AutoML Vision. A cloud service “that is able to build deep learning models...continue reading.
Gold-Mining Week 3 (2018)
Week 3 Gold Mining and Fantasy Football Projection Roundup now available. Go get that free agent gold! The post Gold-Mining Week 3 (2018) appeared first on Fantasy Football Analytics.continue reading.
R from the turn of the century
Last week I spent some time reminiscing about my PhD and looking through some old R code. This trip down memory lane led to some of my old R scripts...continue reading.
2018-09 Importing General-Purpose Graphics in R
This report discusses some problems that can arise when attempting to import PostScript images into R, when the PostScript image contains coordinate transformations that skew …continue reading.
Taking a Tour of the Pirate Ship ‘GitHub DMCA’ with R
Despite having sailed through the core components of this year’s Talk Like A Pirate Day R post time has been an enemy of late so this will be a short...continue reading.
Official release of shiny.router and its new features
In a web application, routing is the process of using URLs to drive the user interface. Routing adds more possibilities and flexibility while building a complex and advanced web application,...continue reading.
Let’s play together: Collaborative Data Science
Why is it so hard? From experience we’ve learned that most data science projects are not truly collaborative efforts but only driven by a few key players. Best (public) examples...continue reading.
Not Hotdog: A Shiny app using the Custom Vision API
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....continue reading.
Access the Internet Archive Advanced Search/Scrape API with wayback (+ a links to a new vignette & pkgdown site)
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...continue reading.
Principal Component Momentum?
This post will investigate using Principal Components as part of a momentum strategy. Recently, I ran across a post from … Continue reading →continue reading.
Data visualization with statistical reasoning: seeing uncertainty with the bootstrap
This blog post is one of a series highlighting specific images from my book Data Visualization: charts, maps and interactive … Morecontinue reading.
Why Vectorize?
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...continue reading.
