calc_PPR_scaled: Scale PPR index by total primary production

In andybeet/indexPPR: Utilities to create ecosystem overfishing indices for the NEFSC State of the Ecosystem report

Description

Total primary production (PP) should be in units mtC year^-1, since PPR has units mtC year^-1. The ratio of PPR:PP is then returned

Usage

calc_ppr_scaled(
  PPR,
  PP,
  pprField = "INDEX",
  yearFieldPPR = "YEAR",
  ppField = "ANNUAL_MTON",
  yearFieldPP = "YEAR"
)

Arguments

PPR	Data frame (n x 2). Primary production required index over time. Two columns YEAR and INDEX
PP	List. First element labeled PP is a Data frame of size (n x 2). Columns YEAR, ANNUAL_MEAN. Second element labeled EPUarea is the area of the region
pprField	Character string. The name of the field in PPR which contains the PPR index data.
yearFieldPPR	Character string. The name of the field in PPR which contains the Year.
ppField	Character string. The name of the field in PP which contains the PP data.
yearFieldPP	Character string. The name of the field in PP which contains the Year.

Details

Units: Percentage

Value

Data frame (n x 7)

YEAR	Year of scaled index
SCALEDINDEX	Ratio of PPR:PP

andybeet/indexPPR documentation built on March 18, 2021, 12:33 p.m.