Description Usage Arguments Value References Examples
A fast procedure for computing logratio analysis.
1 |
dat |
Input data: can be a table or a data frame (but the data frame must have only two columns). |
base |
Numeric specification of the base with respect to which logarithms are computed. |
A list with components:
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The eigenvalues (i.e. squared singular values), indicating how much each latent axis explains. |
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The coordinates of the first set of levels (viz. the row levels of a frequency table). |
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The coordinates of the second set of levels (viz. the column levels of a frequency table). |
Greenacre, M. (2019) Compositional data analysis in practice. Boca Raton: Chapman and Hall/CRC.
Van den Boogaart, K. G. and R. Tolosana-Delgado (2013) Analyzing compositional data with R. Berlin: Springer.
1 2 3 4 5 | SndT_Fra <- read.table(system.file("extdata", "SndT_Fra.txt", package = "svs"),
header = TRUE, sep = "\t", quote = "\"", encoding = "UTF-8",
stringsAsFactors = FALSE)
lra.SndT_Fra <- fast_lra(SndT_Fra)
lra.SndT_Fra
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