A drop-in replacement for %>% that logs row counts, column counts,
added/dropped column names, and step timing at each stage of a dplyr / tidyr pipeline.
Inspired by the SAS DATA step log and mostly for educational context in R.
Nested pipelines (e.g. inside a semi_join() or filter() argument) are
automatically detected and displayed with increasing indentation, so the
main pipeline and its sub-pipelines are visually distinct.
lhs %>=% rhsThe result of applying rhs to lhs, invisibly from the logging
perspective — the value is returned normally so pipelines compose as
expected.
Depth tracking uses options(.LPipe_depth) which is incremented around the
evaluation of rhs only, ensuring that the steps of the main pipeline
always log at depth 0 and nested %>=% calls at depth 1, 2, etc.
Display options (wrap_width, big_mark, lang) are controlled via
logrittr_options().
if (FALSE) { # \dontrun{
library(dplyr)
logrittr_options(lang = "en", big_mark = ",", wrap_width = 30)
iris %>=%
as_tibble() %>=%
filter(Sepal.Length < 5) %>=%
mutate(rn = row_number()) %>=%
group_by(Species) %>=%
summarise(n = n_distinct(rn))
} # }