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zCompositions

Imputation of Zeros, Nondetects and Missing Data in Compositional Data Sets

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Install

install.packages('zCompositions')

Monthly Downloads

3,030

Version

1.5.0-4

License

GPL (>= 2)

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Repository

https://github.com/Japal/zCompositions

Maintainer

Javier Palarea-Albaladejo

Last Published

June 19th, 2024

Functions in zCompositions (1.5.0-4)

Find and display patterns of zeros/missing values in a data set

Multiplicative simple replacement (plus)

Variation array for grouped data

Log-ratio SVD algorithm (plus)

Multiplicative simple replacement

Water data set: matrix of limits of detection

Display Kaplan-Meier empirical cumulative distribution function and smoothing spline curve fit

Multiplicative Kaplan-Meier smoothing spline (KMSS) replacement

Multiplicative lognormal replacement

Variation array relative error

Variation array homogeneity test

Treatment of Zeros, Left-Censored and Missing Values in Compositional Data Sets

La Paloma data set

Log-ratio EM algorithm (plus)

La Paloma data set (incl. zeros and missing data)

Log-ratio SVD algorithm

Log-contrast homogeneity test

Log-ratio DA algorithm

Bayesian-Multiplicative replacement of count zeros

Log-ratio EM algorithm