renorm {PROcess} | R Documentation |
Renormalize spectra for m/z values greater than `cutoff'.
renorm(Ma, cutoff)
Ma |
a matrix, with rows the m/z values and the columns the samples. |
cutoff |
a real value, before which the portion of a spectrum will be ignored. |
A sample of spectra will be normalized to have the same AUC, the median of the AUCs of spectra. Each AUC is calculated as the sum of the intensities whose m/z values are greater than `cutoff'.
A matrix, with rows the m/z values and the columns the samples. Only rows with m/z values greater than `cutoff' are kept.
example(rmBaseline) rtM <- renorm(testM, cutoff=1500)