overdispersion: Estimating overdispersion

In ef: Modelling Framework for the Estimation of Salmonid Abundance

Description

Complete function for returning overdispersion estimates

Usage

overdispersion(
  data,
  siteID,
  visitID,
  count = "count",
  pass = "pass",
  lifestage = "lifestage",
  pass12 = "pass12",
  id,
  largemodel
)

Arguments

data	dataframe containing EF data
siteID	site name or unique ID
visitID	a number identifying each unique visit
count	count of fish (defaults to "count")
pass	the EF pass number (defaults to "pass")
lifestage	the lifestage (defaults to "lifestage")
pass12	categorical variable with 2 levels where the 1st pass and subsequent passes are treated separately (defaults to "pass12")
id	sample ID
largemodel	the large model that captures most of the systematic variation in the data - this is specified before running the overdispersion function

Value

a data.frame summarising overdispersion

Note

ensure column names in function call are in inverted commas

ef documentation built on Nov. 8, 2020, 4:36 p.m.