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Download FinBIF occurrence records

Source: R/finbif_occurrence.R
finbif_occurrence.Rd

Download filtered occurrence data from FinBIF as a data.frame.

Usage

finbif_occurrence(
  ...,
  filter = NULL,
  select = NULL,
  order_by = NULL,
  aggregate = "none",
  sample = FALSE,
  n = 10,
  page = 1,
  count_only = FALSE,
  quiet = getOption("finbif_hide_progress"),
  cache = getOption("finbif_use_cache"),
  dwc = FALSE,
  date_time_method = NULL,
  check_taxa = TRUE,
  on_check_fail = c("warn", "error"),
  tzone = getOption("finbif_tz"),
  locale = getOption("finbif_locale"),
  seed = NULL,
  drop_na = FALSE,
  aggregate_counts = TRUE,
  exclude_na = FALSE,
  unlist = FALSE,
  facts = NULL,
  duplicates = FALSE,
  filter_col = NULL,
  restricted_api = NULL
)

Arguments

...

Character vectors or list of character vectors. Taxa of records to download.

filter

List of named character vectors. Filters to apply to records.

select

Character vector. Variables to return. If not specified, a default set of commonly used variables will be used. Use "default_vars" as a shortcut for this set. Variables can be deselected by prepending a - to the variable name. If only deselects are specified the default set of variables without the deselection will be returned.

order_by

Character vector. Variables to order records by before they are returned. Most, though not all, variables can be used to order records before they are returned. Ordering is ascending by default. To return in descending order append a - to the front of the variable (e.g., "-date_start"). Default order is "-date_start" > "-load_data" > "reported_name".

aggregate

Character. If "none" (default), returns full records. If one or more of "records", "species", "taxa", "individuals", "pairs", "events" or "documents"; aggregates combinations of the selected variables by counting records, species, taxa, individuals or events or documents. Aggregation by events or documents cannot be done in combination with any of the other aggregation types.

sample

Logical. If TRUE randomly sample the records from the FinBIF database.

n

Integer. How many records to download/import.

page

Integer. Which page of records to start downloading from.

count_only

Logical. Only return the number of records available.

quiet

Logical. Suppress the progress indicator for multipage downloads. Defaults to value of option finbif_hide_progress.

cache

Logical or Integer. If TRUE or a number greater than zero, then data-caching will be used. If not logical then cache will be invalidated after the number of hours indicated by the argument.

dwc

Logical. Use Darwin Core (or Darwin Core style) variable names.

date_time_method

Character. Passed to lutz::tz_lookup_coords() when date_time and/or duration variables have been selected. Default is "fast" when less than 100,000 records are requested and "none" when more. Using method "none" assumes all records are in timezone "Europe/Helsinki", Use date_time_method = "accurate" (requires package sf) for greater accuracy at the cost of slower computation.

check_taxa

Logical. Check first that taxa are in the FinBIF database. If true only records that match known taxa (have a valid taxon ID) are returned.

on_check_fail

Character. What to do if a taxon is found not valid. One of "warn" (default) or "error".

tzone

Character. If date_time has been selected the timezone of the outputted date-time. Defaults to system timezone.

locale

Character. One of the supported two-letter ISO 639-1 language codes. Current supported languages are English, Finnish and Swedish. For data where more than one language is available the language denoted by locale will be preferred while falling back to the other languages in the order indicated above.

seed

Integer. Set a seed for randomly sampling records.

drop_na

Logical. A vector indicating which columns to check for missing data. Values recycled to the number of columns. Defaults to all columns.

aggregate_counts

Logical. Should count variables be returned when using aggregation.

exclude_na

Logical. Should records where all selected variables have non-NA values only be returned.

unlist

Logical. Should variables that contain non atomic data be concatenated into a string separated by ";"?

facts

Character vector. Extra variables to be extracted from record, event and document "facts".

duplicates

Logical. If TRUE, allow duplicate records/aggregated records when making multi-filter set requests. If FALSE (default) duplicate records are removed.

filter_col

Character. The name of a column, with values derived from the names of the filter sets used when using multiple filters, to include when using multiple filter sets. If NULL (default), no column is included.

restricted_api

Character. If using a restricted data API token in addition to a personal access token, a string indicating the name of an environment variable storing the restricted data API token.

Value

A data.frame. If count_only = TRUE an integer.

Examples

if (FALSE) {

# Get recent occurrence data for taxon
finbif_occurrence("Cygnus cygnus")

# Specify the number of records
finbif_occurrence("Cygnus cygnus", n = 100)

# Get multiple taxa
finbif_occurrence("Cygnus cygnus", "Ursus arctos")

# Filter the records
finbif_occurrence(
  species = "Cygnus cygnus",
  filter = list(coordinate_accuracy_max = 100)
)

}