DataProcessing {LinkHD} | R Documentation

## DataProcessing

### Description

function to Perform external datas' pre-processing. This function allows an external pre-processing of the datasets including on the analysis in three ways: Standard, Compositional (centered log ratio) and frequencies.

### Usage

    DataProcessing(Data = NULL, Method = "Standard")

### Arguments

`Data` | a numeric data.frame.
`Method` | character indicating the method used to Data preprocessing. If data are continous, use 'Standard'. If Data are compositional, please use 'Compositional' and clr (centered log-ratios functions) transformations are performed. To compositional data, you also could use the option 'TSS' Total Sum Scaling follow up bray (Bray-Curtis) in distance option. The function also allows to processing frequencies- like data through 'FreqNorm' option. Note that when you use Compositional, we first sum 1 to all the counts (in order to performs the log transformation before).

### Value

a data.frame with normalized data.

### Author(s)

Laura M Zingatetti

### Examples

    {
    data(Taraoceans)
    Data<-Taraoceans$phychem
    Data<-DataProcessing(Data,Method='Standard')
    }

[Package LinkHD version 1.4.0 Index]