View source: R/utils.R View source: R/impAll.R

impAll | R Documentation |

Parametric replacement of rounded zeros and missing values for compositional data using classical and robust methods based on ilr coordinates with special choice of balances. Values under detection limit should be saved with the negative value of the detection limit (per variable). Missing values should be coded as NA.

```
impAll(x)
```

`x` |
data frame |

This is a wrapper function that calls *impRZilr()* for the replacement
of zeros and *impCoda* for the imputation of missing values
sequentially. The detection limit is automatically derived form negative
numbers in the data set.

The imputed data set.

This function is mainly used by the compositionsGUI.

Hron, K., Templ, M., Filzmoser, P. (2010) Imputation of
missing values for compositional data using classical and robust methods,
*Computational Statistics and Data Analysis*, 54 (12),
3095-3107.

Martin-Fernandez, J.A., Hron, K., Templ, M., Filzmoser, P.,
Palarea-Albaladejo, J. (2012) Model-based replacement of rounded zeros in
compositional data: Classical and robust approaches, *Computational
Statistics*, 56 (2012), 2688 - 2704.

`impCoda`

, `impRZilr`

```
## see the compositionsGUI
```

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