Provides high level count of insertions, deletions, and matches, as well as a “map” of where the differences are.
# S4 method for Diff
summary(object, scale.threshold = 0.1,
max.lines = 50L, width = getOption("width"), ...)at Diff object
numeric(1L) between 0 and 1, how much distortion to
allow when creating the summary map, where 0 is none and 1 is as much as
needed to fit under max.lines, defaults to 0.1
integer(1L) how many lines to allow for the summary map, defaults to 50
integer(1L) how many columns wide the output should be, defaults
to getOption("width")
unused, for compatibility with generic
a DiffSummary object
## `pager="off"` for CRAN compliance; you may omit in normal use
summary(diffChr(letters, letters[-c(5, 15)], format="raw", pager="off"))
Sequences of single operations (e.g. "DDDDD") are compressed provided that
compressing them does not distort the relative size of the sequence relative
to the longest such sequence in the map by more than scale.threshold.
Since length 1 sequences cannot be further compressed scale.threshold
does not apply to them.