match_partition: Match rows per group

In radbrt/rowpatternmatcher: Select rows based on pattern

Description

This function accepts a dataframe, regex-pattern and column name for definitions, and return matching rows The function is meant to be called from match_rows, due to quosures it wont work standalone. It is, however, fairly simple to call this from another wrapper function as long as it takes care of quoting.

Usage

match_partition(df, definitions, rx, all_nicks, match_name = NULL,
  keep_all_rows = FALSE)

Arguments

df	Sorted dataframe to filter (this will often be a partition from a group_by statement)
definitions	Column containing the definition of rows
rx	Simple regex-like statement to filter for - quoted.
all_nicks	All unique elements in 'definitions' column
match_name	Optional column name for match-number, defaults to NULL.
keep_all_rows	Boolean allows you to return all rows, uncluding nonmatching rows. Meaninless if not match_name is set. Default FALSE.

radbrt/rowpatternmatcher documentation built on Nov. 5, 2019, 2:07 a.m.