A frequent question for people first learning statistical procedures is how to normalize data. Other terms for normalizing may include standardizing, scaling and centering (though the last two terms may mean something other than the first two terms). In my … Continue reading →
This Post Will Explain the Basics of Wide to Long With base reshape (part I) Often your data set is in wide format and some sort of analysis or visualization requires putting the data set into long format. Hadely Wickham … Continue reading →
Often I find myself needing data sets to try functions and code out on or for teaching purposes. I have a few stand-bys such as the mtcars and CO2 data sets in the base packages of R but sometimes I … Continue reading →
Andrew Gelman may have nominated himself the graphics advisor for the World Happiness Report (link). That would be a very good thing. To kick this off, I re-made the Figures 2.1-2.2.8 in the report, which summarized the findings of the...
So I was hunting around for some data on disproportional electoral outcomes (when the proportion of voters cast for political parties is not close to the proportion of legislative seats that they win).Michael Gallagher keeps an updated version of his L...
The companion web site for Serious stats is now live: http://www.palgrave.com/psychology/Baguley/ It includes a sample chapter (Chapter 15: Contrasts), data sets, R scripts for all the examples and supplementary material. Filed under: news, R code, ser...
Here is a list of the contents by chapter with quick notes on chapter content … 0. Preface (About the book; notes on software, mathematics and types of boxed sections) 1. Data, Samples and Statistics (A gentle review of measures … Continue reading →
