vectorsurvR (version 1.6.1)

getAbundanceAnomaly: Get Abundance Anomaly

Description

`getAbundanceAnomaly(...) `requires at least five years prior to the target_year of arthro collections data to calculate for the specified parameters. The function uses the methods of the Gateway Abundance Anomaly calculator, and will not work if there is fewer than five years of data present.

Usage

getAbundanceAnomaly(
  collections,
  interval,
  target_year,
  agency = NULL,
  species = NULL,
  trap = NULL,
  sex = "female",
  trapnight_min = 1,
  trapnight_max = NULL,
  separate_by = NULL
)

Value

Abundance anomaly calculation

Arguments

collections

Collections data retrieved from `getArthroCollections()`

interval

Calculation interval for abundance, accepts “CollectionDate”,“Biweek”,“Week”, and “Month

target_year

Year to calculate analysis on. Collections data must have a year range of at least (target_year - 5, target_year)

agency

An optional vector for filtering agency by character code

species

Character vector for filtering species. View species in your data `unique(data$species_display_name)`. Defaults to all species if no selection

trap

Character vector for filtering trap type by acronym. View trap types in your data`unique(data$trap_acronym`. Defaults to all trap types

sex

Character vector for filtering sex type. View sex options `unique(data$sex_type`). Defaults to "female".

trapnight_min

Minimum trap night restriction for calculation. Default is 1.

trapnight_max

Maximum trap night restriction for calculation. Default is no restriction.

separate_by

Separate/group the calculation by 'trap','species', 'agency','county', or 'spatial'. Default NULL does not separate.

Examples

getAbundanceAnomaly(sample_collections,"Biweek",target_year=2020, species="Cx pipiens")