Package: fiberLD 0.1-8

Natalya Pya Arnqvist

fiberLD: Fiber Length Determination

Routines for estimating tree fiber (tracheid) length distributions in the standing tree based on increment core samples. Two types of data can be used with the package, increment core data measured by means of an optical fiber analyzer (OFA), e.g. such as the Kajaani Fiber Lab, or measured by microscopy. Increment core data analyzed by OFAs consist of the cell lengths of both cut and uncut fibres (tracheids) and fines (such as ray parenchyma cells) without being able to identify which cells are cut or if they are fines or fibres. The microscopy measured data consist of the observed lengths of the uncut fibres in the increment core. A censored version of a mixture of the fine and fiber length distributions is proposed to fit the OFA data, under distributional assumptions (Svensson et al., 2006) <doi:10.1111/j.1467-9469.2006.00501.x>. The package offers two choices for the assumptions of the underlying density functions of the true fiber (fine) lenghts of those fibers (fines) that at least partially appear in the increment core, being the generalized gamma and the log normal densities.

Authors:Natalya Pya Arnqvist[aut, cre], Sara Sjöstedt de Luna [aut], Konrad Abramowicz [aut]

fiberLD_0.1-8.tar.gz
fiberLD_0.1-8.tar.gz(r-4.5-noble)fiberLD_0.1-8.tar.gz(r-4.4-noble)
fiberLD_0.1-8.tgz(r-4.4-emscripten)fiberLD_0.1-8.tgz(r-4.3-emscripten)
fiberLD.pdf |fiberLD.html
fiberLD/json (API)

# Install 'fiberLD' in R:
install.packages('fiberLD', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org'))

Peer review:

Uses libs:
  • c++– GNU Standard C++ Library v3
Datasets:
  • microscopy - Data of uncut fiber lengths in the increment core
  • ofa - Example of increment core data

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

cpp

1.00 score 11 scripts 149 downloads 14 exports 10 dependencies

Last updated 11 months agofrom:16170bf162. Checks:OK: 2. Indexed: yes.

TargetResultDate
Doc / VignettesOKDec 13 2024
R-4.5-linux-x86_64OKDec 13 2024

Exports:dw.fibersdw.fibers.microdw.mixturedx.fibersdx.fibers.microdx.mixturedy.fibersdy.fibers.micrody.mixturefledplot.fledprint.fledprint.summary.fledsummary.fled

Dependencies:BHcodetoolsdoParallelforeachiteratorslatticeMatrixRcppRcppArmadilloVGAM