| covariates {secr} | R Documentation |
Extract or replace covariates
covariates(object, ...) covariates(object) <- value
object |
an object of class traps, popn, capthist, or mask |
value |
a dataframe of covariates |
... |
other arguments (not used) |
For replacement, the number of rows of value must match exactly the number of rows in object.
covariates(object) returns the dataframe of covariates associated with object. covariates(object) may be NULL.
Murray Efford murray.efford@otago.ac.nz
temptrap <- make.grid(nx = 6, ny = 8)
covariates (temptrap) <- data.frame(halfnhalf =
factor(rep(c('left','right'),c(24,24))) )
summary(covariates(temptrap))