proteomicsExprsData {clippda} | R Documentation

## A generic fuction to extract duplicate SELDI data from an object of aclinicalProteomicsData class in the same format as the data from Biomarkers wizard

### Description

This generic function extracts a matrix of duplicate SELDI data from an object of aclinicalProteomicsData class. It then converts it into a dataframe which is in the same format as the data from Biomarkers wizard. In this dataframe, the intensities and the subject mass-to-charge ratio are represented as numeric variables, while the sample-tag is represented as a character variable.

### Usage

    proteomicsExprsData(Data, ...)

### Arguments

`Data` | is an object of a `aclinicalProteomicsData` class.
`...` | means other defined arguments. Currently, we have not defined additional arguments.

### Value

A dataframe of expression values, the substance mass, patient labels, and any other defined sample information.

### Author(s)

S Nyangoma

### Examples

    data(liverdata)

    data(liver_pheno)

    OBJECT=new("aclinicalProteomicsData")

    OBJECT@rawSELDIdata=as.matrix(liverdata)
    OBJECT@covariates=c("tumor" ,    "sex")
    OBJECT@phenotypicData=as.matrix(liver_pheno)
    OBJECT@variableClass=c('numeric','factor','factor')
    OBJECT@no.peaks=53

    head(proteomicsExprsData(OBJECT))

[Package clippda version 1.42.0 Index]