1 What is reproducible research?
Reproducible research, in a nutshell, is the process of publishing
research in such a way that a person can pick up the materials and
reproduce the research exactly. This is an ideal in
science. Essentially, all data, programming code, and interpretation
is presented in such a way that it is easy to see what was done, how
it was done, and why.
A report written in reproducible research style is written in such a
way that any result that comes from analyzing data is written in some
programming language inside the report. The written report is then
processed by software that will interpret the programming code and
replace it with both the code and the output from the code. The reader
of the report then sees exactly what code is executed to produce the
results, and the results that are shown in the report are guaranteed
to be from the code that is shown. This is different from, for
example, writing the code in the document and running it separately to
generate results which are copied and pasted back into the report. In
essence, the report and the analysis are done together, at the same
time, as a unit. An demo of how this works using the LaTeX, Sweave,
and R packages can be found here, and another example using R and
LaTeX, but not Sweave, can be found at Frank Harrell's
Further information can be found at some of the links below (and the
links from those pages).