pqn | R Documentation |
Perform Probabilistic Quotient Normalization
pqn(X, n = "median", QC = NULL)
X |
matrix to normalize samples * variables (rows * columns) |
n |
normalization reference: "mean" for using the overall average of variables as reference or "median" (default) for using the overall median of variables as reference |
QC |
vector of number(s) to specify samples which average to use as reference (e.g. QC samples) |
First a total area normalization should be done before PQN is applied.
Normalized table samples * variables (rows * columns)
E. Nevedomskaya
Rico Derks
Dieterle, F., Ross, A., Schlotterbeck, G. & Senn, H. Probabilistic Quotient Normalization as Robust Method to Account for Dilution of Complex Biological Mixtures. Application in H1 NMR Metabonomics. Anal. Chem. 78, 4281-4290 (2006).
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