unmarkedMultFrame: Create an unmarkedMultFrame.

In ianfiske/unmarked: Models for Data from Unmarked Animals

Description

This function constructs an unmarkedMultFrame object.

Usage

unmarkedMultFrame(y, siteCovs, obsCovs, numPrimary, yearlySiteCovs)

Arguments

y	A matrix of the observed data.
siteCovs	Data frame of covariates that vary at the site level.
obsCovs	Data frame of covariates that vary within site-year-observation level.
numPrimary	Number of primary time periods (seasons in the multiseason model).
yearlySiteCovs	Data frame containing covariates at the site-year level.

Details

unmarkedMultFrame objects are used by colext.

For a study with M sites, T years, and a maximum of J observations per site-year, the data are shaped as follows. y is an M by TJ matrix, with each row corresponding to a site. siteCovs is a data frame with M rows. yearlySiteCovs is a data frame with MT rows which are in site-major, year-minor order. obsCovs is a data frame with MTJ rows, which are ordered by site-year-observation, so that a column of obsCovs corresponds to as.vector(t(y)), element-by-element. The number of years must be specified in numPrimary.

If the data are in long format, the convenience function formatMult is useful for creating the unmarkedMultFrame.

Value

an unmarkedFrame object

ianfiske/unmarked documentation built on May 18, 2019, 1:28 a.m.