group_peaks: Group peaks
In specmine: Metabolomics and Spectral Data Analysis and Mining

Description Usage Arguments Value Examples

Group peaks with peak alignment.

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group_peaks(sample.list, type, method = "own", metadata = NULL, 
samp.classes = 1, description = "", label.x = NULL, 
label.values = NULL, step = 0.03)

`sample.list`	list containing the sample's data.
`type`	type of the data.
`method`	method of peak alignment. Can be "own" or "metaboanalyst", which the later is for using the peak alignment used in MetaboAnalyst software.
`metadata`	data frame containing the metadata.
`samp.classes`	the metadata's variable to be used in the MetaboAnalyst method.
`description`	short description of the data.
`label.x`	the label for the x values.
`label.values`	the label for the y values.
`step`	step value for the peak alignment process.

Returns a dataset with the peaks of the data aligned.

   ## Example of grouping peaks (computationally heavy)
   library(specmine.datasets)
   data(propolisSampleList)
   peaks.ds = group_peaks(propolisSampleList, "nmr-peaks", method = "own", 
	   	metadata = NULL, description = "short description", 
		label.x = "ppm", label.values = "intensity", step = 0.03)