LR.VAR {easyCODA} | R Documentation |
Computation of total (weighted)logratio variance.
LR.VAR(LRdata, row.wt = NA, weight=TRUE, vars=FALSE)
LRdata |
Matrix of logratios, either a vector or preferably the output from one of the functions ALR, CLR, ILR, SLR, PLR or LR |
row.wt |
Optional set of row weights (default: equal weights) |
weight |
Logical indicating if varying weights are returned(default: |
vars |
Output individual variances as well (default: no output of individual variances) |
The function LR
computes the comoplete set of pairwise logratios, in order ([1,2], [1,3], [2,3], [1,4], [2,4], [3,4], etc).
LRtotvar |
The total logratio variance |
LRvars |
(optional, if vars=TRUE, the individual logratio variances composing the total) |
Michael Greenacre
Aitchison, J. (1986), The Statistical Analysis of Compositional Data, Chapman & Hall. Greenacre, M. (2018), Compositional Data Analysis in Practice, Chapman & Hall / CRC Press.
data(veg) LR(veg)