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MassSpecWavelet (version 1.38.0)

Mass spectrum processing by wavelet-based algorithms

Description

Processing Mass Spectrometry spectrum by using wavelet based algorithm

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Version

Version

1.38.0

License

LGPL (>= 2)

Maintainer

Pan Du

Last Published

February 15th, 2017

Functions in MassSpecWavelet (1.38.0)

sav.gol

Estimate the baseline by using Savitzky-Golay Algorithm
localMaximum

Identify local maximum within a slide window.
plotLocalMax

Plot the local maximum matrix
smoothDWT

smooth (denoise) the spectrum by DWT (Discrete Wavelet Transform)
mzInd2vRange

Match m/z index to m/z value with a certain error range
peakDetectionCWT

The main function of peak detection by CWT based pattern matching
getRidge

Identify ridges based on the local maximum matrix
getLocalMaximumCWT

Identify the local maximum of each column in 2-D CWT coefficients matrix
getRidgeValue

Get the CWT coefficient values corresponding to the peak ridge
extendLength

Extend the length of a signal or matrix
getRidgeLength

Estimate the length of the ridge
mzV2indRange

Match m/z value to m/z index with a certain error range
cwt

Continuous Wavelet Transform (CWT)
tuneInPeakInfo

Tune in the peak information: peak position and peak scale
plotRidgeList

Plot the ridge list
identifyMajorPeaks

Identify peaks based on the ridges in 2-D CWT coefficient matrix
MassSpecWavelet-package

Peak detection of mass spectrum by Wavelet transform based methods
exampleMS

An example mass spectrum
extendNBase

Extend the row number of a matrix as the exponential of base N
plotPeak

Plot the identified peaks over the spectrum