MPDiR (version 0.1-15)

panel.psyfun: Panel Function for Adding Psychometric Function Fit to Each Panel

Description

Provides a panel function for use with xyplot from the lattice package so that a psychometric function will be fitted and plotted in each panel of a lattice plot similar to panel.lmline for fitting a linear regression line.

Usage

panel.psyfun(x, y, n, lnk = "logit", ...)

Arguments

x

vector of covariate values

y

vector of responses, usually proportion of correct responses

n

vector of integers specifying number of trial for each proportion in y

lnk

link function to use in fitting glm with binomial family (default is logit).

...

Other parameters passed from the formal arguments of the panel function.

Value

• Nothing returned. Function just used for its side-effects of producing a graph within a panel function.

See Also

See also as lattice

Examples

lattice::xyplot(Pc ~ Phaseshift | WaveForm + TempFreq + 
	Direction, Vernier, layout = c(4, 2),
	panel = function(x, y, n = 20, ...) {
		lattice::panel.xyplot(x, y)
		panel.psyfun(x, y, 20, lnk = "probit")
	}
)