Implements NLS filtering

An NLS fit provides the best relation by relation fit. For each provided relationship, an NLS fit is computed and used to estimate the predicted V,TW,Y for a given Q. If the actual value is outside the specified allowance it is removed.

Usage

nls_filter(df, allowance = 0.5)

Arguments

df

a data.frame with at least a Q and one other AHG field (Y. TW, V).

allowance

how much deviation from observed should be allowed (default = .5)

Value

data.frame

See also

Other filters: date_filter(), mad_filter(), qva_filter(), significance_check()