zCompositions—R package for multivariate imputation of left-censored data under a compositional approach
J Palarea-Albaladejo, JA Mart�n-Fern�ndez�- Chemometrics and Intelligent�…, 2015 - Elsevier
Abstract zCompositions is an R package for the imputation of left-censored data under a
compositional approach. It is pertinent when the analyst assumes that the relevant
information is contained on the relative variation structure of the data. For instance, in cases
where the experimental data are simultaneously measured in amounts related to a same
total weight or volume. The approach is used in fields like geochemistry of waters or
sedimentary rocks, environmental studies related to air pollution, physicochemical analysis�…
compositional approach. It is pertinent when the analyst assumes that the relevant
information is contained on the relative variation structure of the data. For instance, in cases
where the experimental data are simultaneously measured in amounts related to a same
total weight or volume. The approach is used in fields like geochemistry of waters or
sedimentary rocks, environmental studies related to air pollution, physicochemical analysis�…