Summary Recently a user posted a question on Stackoverflow, asserting that caret::createFolds() behaves differently than createMultiFolds(). The questioner argued that while createFolds() samples without replacement, createMultiFolds() samples with r... [Read more...]

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Estimating the runtime of an R script Background Recently a person on StackOverflow asked a question about how to estimate the runtime of an R script. She was attempting to produce corelation tests for 60 questions in a survey, using the corr.test() ... [Read more...]

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Reading Excel Files: A comparison of R packages Background Recently a person posed a question on Stackoverflow about four of the packages that are used to read Microsoft Excel files, including: readxl, openxlsx, xlsx, and XLConnect. The p... [Read more...]