Introduction In this post (The making of cricket package yorkr-Part 2),  I continue to add new functionality to my package cricket package yorkr in R. In my earlier post The making of cricket package yorkr-Part 1 I had included functionality that will plot batsman partnerships, bowlers performances with wicket-kind, wicket-runs in specified ...

This was a neat graphic that someone made. It shows the population at a given latitude or longitude as a bar chart, overlayed on a map of the world itself. It shows where people live; the bigger the bar, the...Continue Reading →

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An interesting question came up on X validated a few days ago: given a probability vector p=(p¹,…,p⁷), is there a way to pick 5 values in {1,…,7} without replacement and still preserve the probability repartition in the resulting sample? In other words, is there a sampling without replacement strategy that ...

Introduction XGBoost is a library designed and optimized for boosting trees algorithms. Gradient boosting trees model is originally proposed by Friedman et al. The underlying algorithm of XGBoost is similar, specifically it is an extension of the classic gbm algorithm. By employing multi-threads and imposing regularization, XGBoost is able to ...

A very nice new update to the gtrendsR package by Philippe and myself is now avilable via CRAN. I had only blogged about the initial 1.3.0 release, and we have added a whole slew of new features and fixes. Philippe rewrote a lot of the parsing to make it more robust ...