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Flag fossil records

Source: R/flag_fossil.R
flag_fossil.Rd

This function identifies occurrence records that correspond to fossils, based on specific search terms found in selected columns.

Usage

flag_fossil(
  occ,
  columns = c("basisOfRecord", "occurrenceRemarks"),
  fossil_terms = NULL
)

Arguments

occ

(data.frame) a data frame containing the occurrence records to be examined, preferably standardized using format_columns(). Must contain the columns specified in columns.

columns

(character) vector of column names in occ where the function will search for the term "fossil" or other fossil-related expressions. Default is c("basisOfRecord", "occurrenceRemarks").

fossil_terms

(character) optional vector of additional terms that indicate a fossil record (e.g., "paleontological", "subfossil"). Default is NULL.

Value

A data.frame that is the original occ data frame augmented with a new column named fossil_flag. Records identified as fossils receive FALSE, while all other records receive TRUE.

Examples

# Load example data
data("occurrences", package = "RuHere")
# Flag fossil records
occ_fossil <- flag_fossil(occ = occurrences)