convertParameters: Parameter estimates from a nonlinear lest squares (NLS) fit.

In SCEM: Splitting-Coalescence-Estimation Method

Description

This function converts the estimated parameters from the non-linear least squares (NLS) model fit to the appropriate parameter space corresponding to the cosine model proposed by Balasse et al (2012).

Usage

convertParameters(curve)

Arguments

curve

A fitted model object from nls function. The fitted model should have the following parameter estimates - amplitude, intercept, frequency, phase.

Value

A list containing the following components:

amplitude	estimated amplitude
intercept	estimated intercept
x0	delay of the data
X	period of the data
birth	birth seasonality estimate

Examples

armenia_split = split(armenia,f = armenia$ID)
curve = sineFit(armenia_split[[1]],method = "OLS")
convertParameters(curve)

SCEM documentation built on Sept. 5, 2021, 5:50 p.m.