R at Google


“…One interesting application is the Google Flu Trends project, which uses R to estimate current flu activity based on Google search results. Google Trends aggregates user search queries showing how often a particular word or phrase has been searched. Correlation tests are run on the search results to obtain a manageable data set of potentially relevant variables. Then using R, they massage the data and create models with optimized weights for each search term. From this, they are able to reasonably estimate current flu activity for different regions around the world. Google also announced an R client for the Google Prediction API (a service which accesses Google’s machine learning algorithms to analyze historic data and predict future outcomes). The R client is available here: http://code.google.com/p/google-prediction-api-r-client/ Final note, Google has published an R Style Guide which may be of interest for those seeking a set of standards for R coding: http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html" Read all the article here!

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