Tag: Git

Feed: R-bloggers. Author: The USGS OWI blog. Finding the Location Furthest from Water in the Conterminous United States The idea for this post came a few months back when I received an emailthat started, “I am a writer and teacher and am reaching out to you witha question related to a piece I would like to write about the place inthe United States that is furthest from a natural body of surface water.My question is, in short, might you know where this theoretical place islocated?” As someone who works on theNational Water CensusandNational hydrography data,this question piqued my interest. I ... Read More

Feed: R-bloggers. Author: Perceptive Analytics. The following document details how to create a treemap in R using the treemap package. What are they & when do we use them In the most basic terms a treemap is generally used when we want to visualize proportions. It can be thought of a pie map where the slices are replaced by rectangles.Using pie charts to visualize proportion is an excellent way, however if the categories keep on increasing the pie charts tends to become more and more unreadable. This issue of pie charts is overcomed in a Treemap which uses nested structure ... Read More

Feed: R-bloggers. Author: Iyar Lin. I’m pretty sure most readers of this blog are already familiar with Rmarkdown and Github. In this post I don’t pretend to invent the wheel but rather give a quick run-down of how I set-up and use these tools to produce high quality and scalable (in human time) reproducible data science development code. Github While data science processes usually don’t involve the exact same workflows like software development (for which Git was originally intended) I think Git is actually very well suited to the iterative nature of data-science tasks. When walking down different avenues in ... Read More

Feed: R-bloggers. Author: John Mount. I’ve ended up (almost accidentally) collecting a number of different solutions to the “use a column to choose values from other columns in R” problem. Please read on for a brief benchmark comparing these methods/solutions. What we did is: build a 1,000,000 row variation of the original example. In this variation we ensured that the selections are all valid column names, and removed any extra code that the methods had included to defend against mis-matches. We then timed 13 solution variations. We present the results in a graph here. For this plot: being more to ... Read More

Feed: R-bloggers. Author: Matt Steele. R is not just a tool for the data science elite. It is an immensely powerful tool that can be used by market researchers in everyday analysis. (Displayr helps make this possible by providing an easy to use interface that is integrated with your document and data). In this post, we’re going to focus on how you can use some simple R to manipulate tables. Specifically, we’ll look how R can be used to compute new rows and columns. We’ll look at how this is done through worked examples. The intention, of course, is for ... Read More

Feed: R-bloggers. Author: Fabian Müller. 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 for image recognition completely fully automated and from scratch". AutoML Vision is part of the current trend towards the automation of machine learning tasks. This trend started with automation of hyperparameter optimization for single models (Including services like SigOpt, Hyperopt, SMAC), went along with automated feature engineering and selection (see my colleague Lukas' blog post about our bounceR package) towards full automation of complete data ... Read More

Feed: R-bloggers. Author: Thinking inside the box. Following a teaser tweet two days ago, we are thrilled to announce that binb version 0.0.1 arrived on CRAN earlier this evening. binb extends a little running joke^Htradition I created a while back and joins three other CRAN packages offering RMarkdown integration: tint for tint is not Tufte : pdf or html papers with a fresher variant of the famed Tufte style; pinp for pinp is not PNAS : two-column pdf vignettes in the PNAS style (which we use for several of our packages); linl for linl is not Letter : pdf letters ... Read More

Feed: R-bloggers. Author: R Views. I wish this post existed when I was struggling to add interactive plots to my Shiny app. I was mainly focused on recreating functionality found in other “dashboarding” applications. When looking for options, I found that htmlwidgets were the closest to what companies usually expect. However, while they are great for client-side interactivity, I often hit walls with them when I try to add click-through interactivity because the functionality is either not there, is very limited, or is bloated. With r2d3 there is more work, but the gains in customization and interactivity make it by ... Read More

Feed: R-bloggers. Author: John Mount. We recently saw a great recurring R question: “how do you use one column to choose a different value for each row?” That is: how do you use a column as an index? Please read on for some idiomatic base R, data.table, and dplyr solutions. Let’s say we have some example data: df Suppose our goal is to build a new column called “derived” that for each row chooses from the column named by the names in the column called “choice”. In our case the result would be “[1, 6, 3, NA]” (the last value ... Read More

Feed: R-bloggers. Author: Michael Griebe. 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. Related R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more... If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook ... Read More