Initialize the phase parameter

Compute the empirical phase from a PfPR time series, \(t,x\), and adjust the model phase to match it.

Usage

preset_phase(xds_obj)

Arguments

xds_obj

an xds xds_obj

Value

a list with the mean peak and the values

Note

This algorithm makes a crude guess at the seasonal phase for the forcing function. close to the value that will get fitted later.