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:
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')) |
- 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.
Last updated 8 months agofrom:16170bf162. Checks:OK: 2. Indexed: yes.
| Target | Result | Date |
|---|---|---|
| Doc / Vignettes | OK | Sep 14 2024 |
| R-4.5-linux-x86_64 | OK | Sep 14 2024 |
Exports:dw.fibersdw.fibers.microdw.mixturedx.fibersdx.fibers.microdx.mixturedy.fibersdy.fibers.micrody.mixturefledplot.fledprint.fledprint.summary.fledsummary.fled
Dependencies:BHcodetoolsdoParallelforeachiteratorslatticeMatrixRcppRcppArmadilloVGAM
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Fiber Length Determination | fiberLD-package |
| Density functions of the fiber lengths | dw.fibers dx.fibers dy.fibers |
| Density functions of the fiber length based on microscopy data | dw.fibers.micro dx.fibers.micro dy.fibers.micro |
| Mixture density functions of the cell lengths in the increment core | dw.mixture dx.mixture dy.mixture |
| Fiber length determination | fled |
| Data of uncut fiber lengths in the increment core | microscopy |
| Example of increment core data | ofa |
| FLED plotting | plot.fled |
| Print a fiber length determination object. | print.fled |
| Summary for a fled fit | print.summary.fled summary.fled |