time_match_rigid: find matches on variables in a given time period

In renlund/ucR: Ucr Stat Functions

find matches on variables in a given time period

Description

this is essentially a helper function for time_match, see the documentation

Usage

time_match_rigid(
  pattern,
  x = NULL,
  data,
  ...,
  long = TRUE,
  verbose = TRUE,
  paste.alias = TRUE
)

Arguments

pattern	a search string to pass to grepl
x	names of variables to search in (in order of importance, if applicable), if NULL all variables except 'id' and 'date' (which must exist) and 'begin' and 'end' (which might exist) are used as search variables
data	a data set that must contain 'id' and 'date', and optionally 'begin' and 'end'. If the latter are missing, the earliest and latest dates will be used, respectively.
...	arguments (beyond 'pattern' and 'x') passed to grepl
long	output format, if TRUE all hits have separate row, else the emphasis is on the first hit for each 'id' (by 'date' and 'x'). N.B long = FALSE will be slow for large datasets!
verbose	if TRUE the function will give helpful and/or annoying messages sometimes
paste.alias	if long = FALSE and if 'x' has a names attribute, this will be pasted onto some output variable names, unless you set override this behavour by setting this argument to zero

Value

See time_match for details on output

Author(s)

Henrik Renlund

See Also

time_match, grepl

renlund/ucR documentation built on March 25, 2023, 10:10 a.m.