ef: Evaporative Fraction
In dpabon/ecofunr: Deriving Ecosystem Functional Properties

Description Usage Arguments Value References

Evaporative fraction (EF) is the ration between Latent heat and the sum of sensible heat and latent heat. EF is used to "characterize the energy partition over land surfaces" \insertCitenichols_evaluation_1993ecofunr.

uWUE = LE / (LE + H)

ef(
  LE,
  H,
  dates,
  aggregation.time = NULL,
  aggregation.metric = "median",
  overlapping = F,
  prob = 0.9
)

`LE`	Latent heat (units).
`H`	Sensible heat (units).
`dates`	Dates vector.
`aggregation.time`	Can be "NULL", "day", "month", "year", growing season "gs". if it's a number it's considered as a time window in number of days. If "optim" the optimum number of days will be estimate to reduce the sd of each chunck. See `aggreg`.
`aggregation.metric`	Can be "mean", "max", "min", "median", and "quant". if "quant" a number between 0 and 1 need to be provided for prob parameter.
`overlapping`	Can be "NULL" or a number. If it's a number equivale to the parameter by of the rollapply function.
`prob`	Only used if aggregation.metric is "quant", a number between 0 and 1. By default 0.9.