ggbgetAgesFit: determine the age range that minimizes the mean squared error

In albinomatheus/toolbox: Matheus' personal functions and palettes

determine the age range that minimizes the mean squared error

Description

Called by ggbcoverageFromYear() whenever exact.ages are not given. This automates what one typically does visually.

Usage

ggbgetAgesFit(
  codi,
  minA = 5,
  maxA = 75,
  minAges = 8,
  lm.method = "tukey",
  opt.method = "r2",
  scale = 1
)

Arguments

codi	data.frame as returbed by ggbMakeColumns()
minA	the lowest age to be included in search
maxA	the highest age to be included in search (the lower bound thereof)
minAges	the minimum number of adjacent ages to be used in estimating
lm.method	character, one of: "oldschool" default sd ratio operation of still unknown origin "lm" or "ols" for a simple linear model "tls", "orthogonal", or "deming" for total least squares "tukey", "resistant", or ""median" for Tukey's resistant line method
opt.method	what kind of residual do we minimize? choices "RMS","logRMS", "ORSS", "logORSS" (experimental)
scale	multiplicative scale factor for the minimized residual

Value

a vector of ages that minimizes the RMSE

See Also

codeggbChooseAges

albinomatheus/toolbox documentation built on June 13, 2024, 5:42 a.m.