3366 search results for "Map"

Scraping Web Pages With R

April 15, 2015
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Scraping Web Pages With R

One of the things I tend to avoid doing in R, partly because there are better tools elsewhere, is screenscraping. With the release of the new rvest package, I thought I’d have a go at what amounts to one of the simplest webscraping activites – grabbing HTML tables out of webpages. The tables I had

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The Problem with Propensity Scores

April 14, 2015
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The Problem with Propensity Scores

Are Propensity Scores Useful? Effect estimation for treatments using observation data isn't always straight forward. For example, it is very common that patients who are treated with a certain medication or procedure are healthier than those who are not treated. Those who aren't treated may not be...

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The Problem with Propensity Scores

April 14, 2015
By
The Problem with Propensity Scores

Are Propensity Scores Useful? Effect estimation for treatments using observation data isn't always straight forward. For example, it is very common that patients who are treated with a certain medication or procedure are healthier than those who are not treated. Those who aren't treated may not be...

Read more »

Animated paths in R: toy example

April 14, 2015
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Animated paths in R: toy example

Recently I have shared examples of animations made using R which feature traversal of pathways, specifically grid cell borders and great circle arcs. Here I provide the basic code required to generate a path sequence from a path. The fundamental ideas are as follows: Pathways are represented by lines. Lines are represented by a series

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Project Tycho, ggplot2 and the shameless stealing of blog ideas

April 14, 2015
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Project Tycho, ggplot2 and the shameless stealing of blog ideas

Last week, Mick Watson posted a terrific article on using R to recreate the visualizations in this WSJ article on the impact of vaccination. Someone beat me to the obvious joke. @BioMickWatson @pathogenomenick Nice quilt plot. — Ed Yong (@edyong209) April 9, 2015 Someone also beat me to the standard response whenever base R graphics

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Project Tycho, ggplot2 and the shameless stealing of blog ideas

April 14, 2015
By
Project Tycho, ggplot2 and the shameless stealing of blog ideas

Last week, Mick Watson posted a terrific article on using R to recreate the visualizations in this WSJ article on the impact of vaccination. Someone beat me to the obvious joke. @BioMickWatson @pathogenomenick Nice quilt plot. — Ed Yong (@edyong209) April 9, 2015 Someone also beat me to the standard response whenever base R graphics

Read more »

Analysing Dracula

April 14, 2015
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Analysing Dracula

I recently read Bram Stoker’s Dracula, mostly because I wanted to rewatch the 1990s movie of the same name and see how badly they’d mutilated the story.  [Update 26/04/2015: I rewatched the 1992 movie and while it’s the most faithful version to the book, it has some weird additions and is utterly appalling.  People have been … Continue reading...

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Scale back or transform back multiple linear regression coefficients: Arbitrary case with ridge regression

April 10, 2015
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SummaryThe common case in data science or machine learning applications, different features or predictors manifest them in different scales. This could bring difficulty in interpreting the resulting coefficients of linear regression, such as one featur...

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Where are the R users?

April 9, 2015
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Where are the R users?

by Joseph Rickert A recent post by David Smith included a map that shows the locations of R user groups around the world. While is exhilarating to see how R user groups span the globe, the map does not give any idea about the size of the community at each location. The following plot, constructed from information on the...

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Six Ways You Can Make Beautiful Graphs (Like Your Favorite Journalists)

April 8, 2015
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Six Ways You Can Make Beautiful Graphs (Like Your Favorite Journalists)

This post shows how to make graphs like The Economist, New York Times, Vox, 538, Pew, and Quartz. And you can share–embed your beautiful, interactive graphs in apps, blog posts, and web sites. Read on to learn how. If you like interactive graphs and need to securely collaborate with your team, contact us about Plotly Enterprise.

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