Package: TapeR
Type: Package
Title: Flexible Tree Taper Curves Based on Semiparametric Mixed Models
Version: 0.5.3
Date: 2023-08-09
Authors@R: c(person(given = "Edgar", family = "Kublin", role = "aut"),
              person(given = "Johannes", family = "Breidenbach", role = c("ctb"),	
              email = "job@nibio.no"),
              person(given = "Christian", family = "Vonderach", role = c("ctb","cre"), 
              email = "christian.vonderach@forst.bwl.de")
					)
Description: Implementation of functions for fitting taper curves (a semiparametric 
  linear mixed effects taper model) to diameter measurements along stems. Further 
  functions are provided to estimate the uncertainty around the predicted curves, 
  to calculate timber volume (also by sections) and marginal (e.g., upper) diameters. 
  For cases where tree heights are not measured, methods for estimating
  additional variance in volume predictions resulting from uncertainties in
  tree height models (tariffs) are provided.  The example data include the taper 
  curve parameters for Norway spruce used in the 3rd German NFI fitted to 380 trees 
  and a subset of section-wise diameter measurements of these trees. The functions 
  implemented here are detailed in Kublin, E., Breidenbach, J., Kaendler, G. (2013)
  <doi:10.1007/s10342-013-0715-0>.
License: GPL (>= 2)
LazyLoad: yes
Depends: nlme, splines, pracma
Suggests: testthat
RoxygenNote: 7.2.3
NeedsCompilation: no
Packaged: 2023-08-09 14:03:49 UTC; Christian.Vonderach
Author: Edgar Kublin [aut],
  Johannes Breidenbach [ctb],
  Christian Vonderach [ctb, cre]
Maintainer: Christian Vonderach <christian.vonderach@forst.bwl.de>
Repository: CRAN
Date/Publication: 2023-08-16 07:22:33 UTC
Built: R 4.6.0; ; 2026-04-27 13:06:46 UTC; unix
