Check markdown code chunk

Checks if a code chunk was specified. If not, generates a feedback message. If yes, zooms in on the code chunk so you can use functions like check_function as for any regular R exercise.

check_chunk(state, index = 1, not_found_msg = NULL, append = TRUE)

Arguments

state	the state to start from. This state can be produced by check_rmd, but can also follow on check_header to look for a chunk in a specific header section.
index	number that specifies which code chunk to check in the student and solution code that is zoomed in on.
not_found_msg	If specified, this overrides the automatically generated message in case no index'th chunk was found.
append	Whether or not to append the feedback to feedback built in previous states.

Value

A state that zooms in on the code chunk.