wrapper.normalizeD {DAPAR} | R Documentation |
Provides several methods to normalize quantitative data from
a MSnSet
object.
They are organized in four main families : Global Alignment,
Median Centering, Mean Centering, Mean Centering Scaling.
For the first family, two sub-categories are available : the sum by columns
and the quantiles method.
For the three other families, two categories are available :
"Overall" which means that the value for each protein
(ie line in the expression data tab) is computed over all the samples ;
"within conditions" which means that the value for each protein
(ie line in the exprs()
data tab) is computed condition
by condition.
wrapper.normalizeD(obj, family, method)
obj |
An object of class |
family |
One of the following : Global Alignment, Median Centering, Mean Centering, Mean Centering Scaling. |
method |
"overall" or "within conditions". |
An instance of class MSnSet
where the quantitative data in the exprs()
tab
has been normalized.
Alexia Dorffer
require(DAPARdata) data(Exp1_R25_pept) wrapper.normalizeD(Exp1_R25_pept[1:1000], "Median Centering", "within conditions")