negativeIntensitiesCorrection: A function to correct the data for the negative intensities...
In clippda: A package for the clinical proteomic profiling data analysis

Description Usage Arguments Value Author(s) Examples

This function corrects the mass spectra data, which has been pre-processed using tools tools from the Biomarkers Wizard PROcess softwares, for the negative intensities caused by their normalization and background correction procedures.

1	negativeIntensitiesCorrection(Data)

Data

is a dataframe , or a matrix, or a vector, of numerical values.

A dataframe , or a matrix, or a vector (whichever is the input quantity), of nonnegative numerical values.

Stephen Nyangoma

data(liverdata)

no.peaks <- 53

JUNK_DATA <- sampleClusteredData(liverdata,no.peaks)

Data=JUNK_DATA

Data=JUNK_DATA
Data=Data+1
temp=negativeIntensitiesCorrection(Data)
temp[,1]
Data[,1]