plot.nhat {mra}

Plot size estimates

Description

Plot the population size estimates for a Cormack-Jolly-Seber model estimated by F.cjs.estim

Usage

## S3 method for class 'nhat'
plot(x, ci = TRUE, smooth = TRUE, occasions = -1, 
	smubass = 5, ...)

Arguments

x

An object of class 'nhat', which inherits from 'cjs'. Objects of this class are estimated open population Cormack-Jolly-Seber models produced by F.cjs.estim.

ci

Plot confidence intervals? If ci=TRUE, confidence intervals around population size or survival estimates are plotted (depending on 'type='), otherwise, only confidence intervals are not plotted.

smooth

Smooth estimates of population size? If type="n", smooth=TRUE will produce a smoothed (supsmu) line through plotted size estimates. Ignored for type="s".

occasions

Vector of occasion numbers to use in plot. If any(occasions <= 0), all occasions are plotted. Otherwise, plot the occasions specified. For example, if occasions = c(1,3,5), only estimates from the 1st, 3rd, and 5th capture occasion are plotted. If type = "n", occasion = 1 (1st occasion) cannot be plotted because it can't be estimated. If type = "s", occasion = ncol(y) (last occasion) cannot be plotted because no survival interval exist beyond the end of the study.

smubass

Bass parameter for super-smoothed line, if called for by smooth=TRUE. Must be between 0 and 10. Larger numbers produce smoother lines.

...

Additional arguments to plot (for size estimates) or matplot (for survival estimates). Options such as ylim=, col=, cex.axis=, etc. may be useful.

Value

The smooth fit is invisibly returned if called for by smooth = TRUE, otherwise NA is invisibly returned.

Author(s)

Trent McDonald, WEST-INC, [e-mail]

See Also

F.cjs.estim, matplot, lines, plot, plot.cjs

Examples

 

data(dipper.histories)
dipper.cjs <- F.cjs.estim( ~1, ~1, dipper.histories )
plot(dipper.cjs,type="n")

# See examples for F.cr.model.avg for a way to plot model averaged population size estimates.