This is a collection of R functions and some knitr documents that allow one to make basic reports on class exam performance. At the moment, this includes things like reporting mean, median, and standard deviation, making box plots of per-question performance, and looking at correlations between questions and exams.
The basis for this is a grading "scheme" wherein exam grades are recorded using strings: each character represents the score on a single question. (This is only viable -- barring the use of large character sets! -- if any given question is worth at most 35 points, which will only be violated when a complete idiot has written the test.)
Barebones! Please feel free to make this better.