The qda() function from package 'MASS' is extended to calculate a weighted linear (LDA) and quadratic discriminant analysis (QDA) by changing the group variances and group means based on cell-wise uncertainties. The uncertainties can be derived e.g. through relative errors for each individual measurement (cell), not only row-wise or column-wise uncertainties. The method can be applied compositional data (e.g. portions of substances, concentrations) and non-compositional data.
| Version: | 0.1.3 |
| Depends: | R (≥ 3.6.0) |
| Imports: | compositions |
| Suggests: | ggplot2, ggthemes, ggtern |
| Published: | 2020-07-17 |
| Author: | Solveig Pospiech [aut, cre], K. Gerald van den Boogaart [ctb] |
| Maintainer: | Solveig Pospiech <s.pospiech at hzdr.de> |
| License: | GPL-3 |
| NeedsCompilation: | no |
| CRAN checks: | vdar results |
| Reference manual: | vdar.pdf |
| Package source: | vdar_0.1.3.tar.gz |
| Windows binaries: | r-devel: vdar_0.1.3.zip, r-release: vdar_0.1.3.zip, r-oldrel: vdar_0.1.3.zip |
| macOS binaries: | r-release: vdar_0.1.3.tgz, r-oldrel: vdar_0.1.3.tgz |
| Old sources: | vdar archive |
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