SetAreaPositionsBiotic: Set position Biotic

In StoXProject/RstoxFDA: Fisheries Dependent Analysis with RstoX

Set position Biotic

Description

Sets start position based on area codes. Appropriate when BioticData is read from NMDbiotic.

Usage

SetAreaPositionsBiotic(
  BioticData,
  AreaPosition,
  LocationVariable = c("None", "location"),
  System = character(),
  Overwrite = F
)

Arguments

BioticData	BioticData data for which positions should be set
AreaPosition	coordinates for Area and Location codes, see AreaPosition
LocationVariable	Specify which column in 'BioticData' should are represented by 'Location' in 'AreaPosition'. See details.
System	identifies the area coding system used. Corresonds to the column 'system' on 'fishstation' in 'BioticData'.
Overwrite	if True any existing values in 'latitudestart' and 'longitudestart' will be overwritten. If False postions with both latitude and longitude will be kept as they were.

Details

Positions are filled in the columns 'latitudestart' and 'longitudestart' on 'fishstation' whenever the value in the column 'system' on 'fishstation' is equal to the parameter 'System'.

When 'LocationVariable' is specified as 'None' area is looked up from 'AreaPosition', using the row where 'Location' is missing. When 'LocationVariable' is specified as 'location', 'area' and 'location' in 'BioticData' is looked up against 'Area' and 'Location' in 'AreaPosition'.

No modifications are done to rows that have missing values for 'system' or 'area' (or 'location', depending on the parameter 'LocationVariable'). Any rows with areas coded in another system than specified by the parameter 'System' will not be changed.

These columns are on the table 'fishstation' in data originating from NMDBiotic (http://www.imr.no/formats/nmdbiotic/). For bioticdata that does not conform to this, no modifications are done.

Value

BioticData

See Also

DefineAreaPosition for configuring definitions of positions for area codes.

StoXProject/RstoxFDA documentation built on Dec. 17, 2024, 10:58 a.m.