all_labels() returns all chunk labels as a character
vector. Optionally, you can specify a series of conditions to filter the
labels. The function 'all_rcpp_labels()' is a wrapper function for
all_labels(engine == 'Rcpp').
A vector of R expressions, each of which should return
For example, suppose the condition expression is
engine == 'Rcpp', the
engine is the local chunk option
engine. If an
expression fails to be evaluated (e.g. when a certain object does not exist),
FALSE is returned and the label for this chunk will be filtered out.
A character vector.
Empty code chunks are always ignored, including those chunks that are
empty in the original document but filled with code using chunk options
# the examples below are meaningless unless you put them in a knitr document all_labels() all_labels(engine == "Rcpp") all_labels(echo == FALSE && results != "hide") # or separate the two conditions all_labels(echo == FALSE, results != "hide")
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