I recently announced the rmote package for serving various graphics from an interactive remote R session to a local machine. I have made a few noteworthy upates to the package, so here’s a quick post about them. The most major update is an enhanced... [Read more...]

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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 [Read more...]

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 [Read more...]

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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 manipulate data frames in R using their SQL skills. You can read more ... [Read more...]

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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 projections (2013, 2014, 2015).  In[...] The post Who Has the Best Fantasy Football Projections? 2016 Update appeared first on Fantasy Football Analytics. [Read more...]

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Data Community DC and District Data Labs are hosting a Data Visualization with R workshop on Saturday April 2nd from 9am - 5pm. Register before March 19th for an early bird discount!    [Read more...]

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 from the 8th to the 9th of June, later this year. I think we have been lucky to secure ... [Read more...]

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 what follows, we present a tutorial on how to compute common metrics that are often used in evaluation, in addition to metrics ... [Read more...]

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 Dishes", makes a few minor improvements and bug fixes, including long vector support for the smooth function, some improvements in ... [Read more...]

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Coming from Python, the absence of a real dictionary in R has annoyed me for quite some time. Now, I actually needed to use vectors as keys in R:library(dict)d [Read more...]

Coming from Python, the absence of a real dictionary in R has annoyed me for quite some time. Now, I actually needed to use vectors as keys in R:__ library(dict)__ d -____ d[[1]] __ d[[c(2, 3)]] __ d[["foo"]] __ d[[1]][1] 42__ d[[c(2, 3)]][1] "Hello!"Under the hood, separate C++ dictionaries (unordered_map) ... [Read more...]

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 will use the mtcars dataset, provided by R Cran (we can upload dataset by type mtcars and ... [Read more...]

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