show.detfn: Plotting a detection function.

Description Usage Arguments Examples

View source: R/detfns.r

Description

Plots an estimated detection function from a model fit generated by admbsecr.

Usage

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show.detfn(fit, xlim = NULL, ylim = c(0, 1), main = NULL,
  xlab = "Distance (m)", ylab = "Detection probability", add = FALSE, ...)

Arguments

xlim

A vector with two elements, giving the x-axis limits. If NULL, this is set to the buffer of the mask.

ylim

A vector with two elements, giving the y-axis limits.

add

Logical, if TRUE, the estimated detection function is added to an existing plot.

...

Further arguments to be passed to lines.

fit

A fitted model from admbsecr.

main

The main title (on top) using font and size (character expansion) par("font.main") and color par("col.main").

xlab

X axis label using font and character expansion par("font.lab") and color par("col.lab").

ylab

Y axis label, same font attributes as xlab.

Examples

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## Comparison of two detection functions fitted to the same data
show.detfn(example$fits$simple.hn, main = "Detection function comparison")
show.detfn(example$fits$simple.hr, add = TRUE, col = "blue")
legend("topright", legend = c("Half normal", "Hazard rate"), lty = 1, col = c("black", "blue"), bg = "white")

admbsecr documentation built on May 31, 2017, 3:18 a.m.