createOccPois: createOccPois

In NINAnor/SurveyPower: Functions for calculating power of survey design

Description

Creates a lambda of species counts (for use in a Poisson draw) based on explanatory factors. The levels are calculated additively with a fylke effect, a kommune effect, plus a random part (sigma) that determines the intra-kommune variation among grid cells. This is intended to fill a "map" with values of occurrences, and expects columns named fylke and kommune.

Usage

createOccPois(map, intercept = 22, formula = ~NULL, sigmaFylke = 0.1,
  sigmaKommune = 0.1, sigmaGrid = 0, sigmaFylkeTrend = 0,
  sigmaKommuneTrend = 0, artypeEff = c(Bebygd = 1, Samferdsel = 1,
  `Fulldyrka jord` = 1, `Overflatedyrka jord` = 1, Innmarksbeite = 1, Skog
  = 1, `Åpen fastmark` = 1, Myr = 1, Isbre = 1, Ferskvann = 1, Hav = 1,
  `Ikke kartlagt` = 1), artypeTrend = c(Bebygd = 1, Samferdsel = 1,
  `Fulldyrka jord` = 1, `Overflatedyrka jord` = 1, Innmarksbeite = 1, Skog
  = 1, `Åpen fastmark` = 1, Myr = 1, Isbre = 1, Ferskvann = 1, Hav = 1,
  `Ikke kartlagt` = 1), nYears = 5, interceptTrend = 0.95,
  sdInterceptTrend = 0, sortFylke = T, sortKommune = T,
  sortGrid = T)

Arguments

formula	Not yet implemented
sigmaFylke	Standard deviance of fylkes
artypeEff	Note that all parameters are input on the original scale (easier than using log scale)
sigmaFylke	Standard deviance of kommunes.
sigmaFylke	Standard deviance of grids.

NINAnor/SurveyPower documentation built on May 7, 2019, 10:43 p.m.