Calculates the optimal span for a loess spline — fdk_optimal_span • FluxDataKit

The optimal span is calculated based upon the Bayesian information criterion (BIC). This is a copy of the routine used in the phenocamr package.

fdk_optimal_span(
  y,
  x = NULL,
  weights = NULL,
  step = 0.01,
  label = NULL,
  plot = FALSE
)

Arguments

y: a vector with measurement values to smooth
x: a vector with dates / time steps
weights: optional values to weigh the loess fit with
step: span increment size
label: title to be used when plotting function output
plot: plot visual output of the optimization routine

Value

Returns an optimal span to smooth a provided vector using the `loess()` smoother.