analyse.subs: Summarize number of errors and hints by looking at the...
In skranz/RTutorSAGI: Submission Analysis for Grading and Improvement

See README.md for usage

1 2	analyse.subs(sub.li, rps.dir = "org_ps", just.summary = FALSE, no.summary = FALSE, protracted.minutes = 30)

`sub.li`	A list of loaded submission files. See `load.subs`
`rps.dir`	The directory in which you have all rps files of the problem sets (original versions)
`just.summary`	if TRUE just return the chunk summary data frame. If FALSE (default) return a list that also contains several intermediate data frames.
`no.summary`	if TRUE just return list without summary data frame (used by write.chunk.logs)
`protracted.minutes`	Used to classify whether it took a long time, possible due to a break when gotten stuck for a student to solve the chunk. We measure the duration between the first failed attempt and the time the chunk is first solved. If this is longer (in minutes) than `protracted.minutes` (default = 30), we classify that it was protracted for the student to solve the chunk. The summary in sum.df counts for how many students it was protracted to solve the chunk.