Short course on Statistical Methods for the Value of Information Analysis
By Gianluca Baio We’re now ready to start the advertisement for our short course on Statistical Methods for the Value of Information Analysis (I’ve posted about this here). The course will be at UCL...
View ArticleComputing Classification Evaluation Metrics in R
By Joseph Rickert by Said Bleik, Shaheen Gauher, Data Scientists at Microsoft Evaluation metrics are the key to understanding how your classification model performs when applied to a test dataset. In...
View ArticleComputing Classification Evaluation Metrics in R
By Joseph Rickert by Said Bleik, Shaheen Gauher, Data Scientists at Microsoft Evaluation metrics are the key to understanding how your classification model performs when applied to a test dataset. In...
View ArticleR 3.2.4 released
By David Smith The R Core Group announced yesterday the release of R 3.2.4, the final update in the R 3.2.x series. (R 3.3.0 is scheduled for release on April 14.) This update, codenamed “Very Secure...
View ArticleR 3.2.4 released
By David Smith The R Core Group announced yesterday the release of R 3.2.4, the final update in the R 3.2.x series. (R 3.3.0 is scheduled for release on April 14.) This update, codenamed “Very Secure...
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R 3.2.4 is released
By Tal Galili R 3.2.4 (codename “Very Secure Dishes”) was released today. You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of new features and...
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R 3.2.4 is released
By Tal Galili R 3.2.4 (codename “Very Secure Dishes”) was released today. You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of new features and...
View ArticleNew R package: a dictionary with arbitrary keys and values
By Michael Kuhn (This article was first published on bioCS, and kindly contributed to R-bloggers) Coming from Python, the absence of a real dictionary in R has annoyed me for quite some time. Now, I...
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Start plotting data!
By Matteo Renzi In the exercises below we practice the basics of visualization in R. Firstly, we use the command: plot . Then we will see how to add information to our plot through command: lines . We...
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Rcpp now used by 600 CRAN packages
By Thinking inside the box Earlier this morning, Rcpp reached another milestone: 600 packages on CRAN now depend on it (as measured by Depends, Imports and LinkingTo declarations). The graph is on the...
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Who Has the Best Fantasy Football Projections? 2016 Update
By Isaac Petersen In prior posts, we demonstrated how to download projections from numerous sources, calculate custom projections for your league, and compare the accuracy of different sources of...
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ggplot2で字幕 [Subtitles in ggplot2]
By hrbrmstr Subtitles aren’t always necessary for plots, but I began to use them enough that I whipped up a function for ggplot2 that does a decent job adding a subtitle to a finished plot object. More...
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Hunspell: Spell Checker and Text Parser for R
By Jeroen Ooms Hunspell is the spell checker library used in LibreOffice, OpenOffice, Mozilla Firefox, Google Chrome, Mac OS X, InDesign, and a few more. Base R has some spell checking functionality...
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How to fit a copula model in R [heavily revised]. Part 1: basic tools
By Mic More than a year ago I wrote a short post on how to fit a copula model in R. The post showed how to make a very raw and basic fitting of a test dataset to a two dimensional normal copula (or a...
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Performing SQL selects on R data frames
By Fisseha Berhane For anyone who has SQL background and who wants to learn R, I guess the sqldf package is very useful because it enables us to use SQL commands in R. One who has basic SQL skills can...
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Revenue Forecast and the secret of the last observed value
By Thomas Huben I’ve tried a few forecasts with the Forecast Package but irrespective of the number of observations it appears that the last observed value has a dramatic impact on the results. Just a...
View ArticleHappy PI day
By Wingfeet I have never done a post for PI day. This year I want to do so. So, we all know the simple estimation of PI based on random numbers. The code used here is chosen for speed in R. pi2d...
View ArticleHappy PI day
By Wingfeet (This article was originally published at Wiekvoet, and syndicated at StatsBlogs.) I have never done a post for PI day. This year I want to do so. So, we all know the simple estimation of...
View ArticleInstall all required R packages on your Shiny server
By data prone – R Abstract I give a walkthrough of a bash script that installs all of the R packages required by an R program (e.g., Shiny app, R file, R markdown file). This is useful for speeding up...
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How to replace a pie chart
By David Robinson Yesterday a family member forwarded me a Wall Street Journal interview titled What Data Scientists Do All Day At Work. The title intrigued me immediately, partly because I find myself...
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