shiftCor {statTarget} | R Documentation |
shiftCor provides the QC-RLS correction for large scale metabolomics.
shiftCor(samPeno, samFile, Frule = 0.8, QCspan = 0.75, degree = 2, imputeM = "KNN")
samPeno |
The file with the meta information including the sample name, batches, class and order. |
samFile |
The file with the expression information. |
Frule |
The cut-off value for missing value filter function. |
QCspan |
The smoothing parameter which controls the bias-variance tradeoff. if the QCspan is set at '0', the generalised cross-validation will be performed to avoid overfitting the observed data. |
degree |
Lets you specify local constant regression (i.e., the Nadaraya-Watson estimator, degree=0), local linear regression (degree=1), or local polynomial fits (degree=2, the default). |
imputeM |
The parameter for imputation method.(i.e., nearest neighbor averaging, "KNN"; minimum values for imputed variables, "min", median values for imputed variables (Group dependent) "median"). |
An object of shiftCor
datpath <- system.file("extdata",package = "statTarget") samPeno <- paste(datpath,"MTBLS79_sampleList.csv", sep="/") samFile <- paste(datpath,"MTBLS79.csv", sep="/") shiftCor(samPeno,samFile)