manip: Work with Open Population data

In secr: Spatially Explicit Capture-Recapture

Work with Open Population data

Description

Functions for data manipulation

Usage

intervals(object, ...)
intervals(object) <- value
sessionlabels(object, ...)
sessionlabels(object) <- value

Arguments

object	capthist object
value	vector of intervals or primary session labels
...	other arguments (not used)

Details

intervals extracts the ‘interval’ attribute if it exists.

The attribute ‘intervals’ is set automatically by the secr function join.

sessionlabels provides session names for the primary sessions encoded in a “single-session” capthist object (e.g., the result of join) that has an intervals attribute. The names are used by some summary functions in the package openCR (M. Efford unpubl.) (m.array, JS.counts).

The function session has a different purpose: labelling sessions in a multi-session capthist object. However, session names of multi-session input are used automatically by join to construct the sessionlabels attribute of the resulting single-session object.

Value

For intervals, a numeric vector of time intervals, one less than the number of occasions (secondary sessions).

For sessionlabels, a character vector of primary session names.

Note

There is a naming conflict with the intervals function in nlme.

Examples

singlesessionCH <- join(ovenCH)
intervals(singlesessionCH)
sessionlabels(singlesessionCH)

secr documentation built on April 4, 2025, 2:06 a.m.