Self-Starting nls area of gaussian model

Area version of gaussian function.

SSgaussAre(input,y0,A,xc,w)

Arguments

input

a numeric vector of values at which to evaluate the model.
y0

offset
A

area
xc

center
w

width

Value

a numeric vector of the same length as input. It is the value of the expression y0+(A/(w*sqrt(pi/2)))*exp(-2*(x-xc)^2/(w^2)).

Note

This is primarily intended for use in formulae given to the nls function or similar functions for example mle2.

References

Origin: http://www.originlab.com/doc/Origin-Help/Gauss-FitFunc.

See also

selfStart, getInitial

Examples

data(smoking)
model <- nlsLM(Germany ~ SSgaussAre(year,y0,A,xc,w),data=smoking)