How can I get the average spectra of full LC-MS data ?

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Ricardo Borges 2016-2-23

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https://ww2.mathworks.cn/matlabcentral/answers/269528-how-can-i-get-the-average-spectra-of-full-lc-ms-data

评论： Ricardo Borges 2016-2-25

I need to be able to get the average spectra of full LC-MS data to use the full MS spectra without ion suppression effect. For that I need to transform know which is the LC-MS matrix and get the average of all retention time axis into a vector with m/z range as axis.

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Ricardo Borges 2016-2-25

I don't really know how come MathWorks did not updated the mzxmlread function to read the last version of *.mzXML files.

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Answer 1

Ricardo Borges 2016-2-23

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https://ww2.mathworks.cn/matlabcentral/answers/269528-how-can-i-get-the-average-spectra-of-full-lc-ms-data#answer_210880

I have been using the workflow proposed at http://www.mathworks.com/help/bioinfo/examples/visualizing-and- %preprocessing-hyphenated-mass-spectrometry-data-sets-for-metabolite-and-protein-peptide-profiling.html and aside from the fact that matlab's mzxmlread function does not read *.mzxml 3.2 format the workflow works nicely.