Statistical Modelling and knitr | 18

When you have your data cleaned and organized you will begin to examine it
with statistical analyses. In this book we don’t look at how to do statistical
analysis in R (a subject that would and does take up many books). Instead
we focus on how to make your analyses really reproducible. To do this you
dynamically connect your data gathering and analysis source code to your
presentation documents. When you dynamically connect your data gathering
makefiles and analysis source code to your markup document you will be able
to completely rerun your data gathering and analysis and present the results
whenever you compile the presentation documents. Doing this makes it very
clear how you found the results that you are advertising. It also automatically
keeps the presentation of your results-including tables and figures-up-to-date
with any changes you make to your data and analyses source code files.