data_imputation

This function imputes zero concentration values
with a percentage of the minimal positive value. If all values
are zero or NA, they are set to NA. The imputed values are added
to plotting_data in an extra column imputed_Conc.

internal

The 'MetAlyzer' S4 object provides methods to read and reformat metabolomics data for convenient data handling, statistics and downstream analysis. The resulting format corresponds to input data of the Shiny app 'MetaboExtract' (<https://www.metaboextract.shiny.dkfz.de/MetaboExtract/>).

Nils Mechtel

MetAlyzer

Read and Analyze 'MetIDQ&trade;' Software Output Files

Luis Herfurth

Carolin Andresen

Daniel Huebschmann

data_imputation function

<dl><dt>metalyzer_se</dt>
<dd>A MetAlyzer object</dd>
<dt>impute_perc_of_min</dt>
<dd>A numeric value between 0 and 1. Percentage
of the minimal positive value, that is taken for imputation</dd>
<dt>impute_NA</dt>
<dd>Logical value whether to impute NA values</dd></dl>

Arguments

Impute aggregated data — data_imputation

<dl>

<dt>metalyzer_se</dt>
<dd>A MetAlyzer object</dd>


<dt>impute_perc_of_min</dt>
<dd>A numeric value between 0 and 1. Percentage
of the minimal positive value, that is taken for imputation</dd>


<dt>impute_NA</dt>
<dd>Logical value whether to impute NA values</dd>

</dl>

data_imputation: Impute aggregated data

Description

Usage

Arguments