MeltDBWiki/RoundingMZ: Difference between revisions

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imported>HeikoNeuweger
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* To round m/z to integer values as robust robust as possible, 0.75 instead of 0.5 can be used.
* To round m/z to integer values as robust robust as possible, 0.75 instead of 0.5 can be used.


[[Image:MeltDBWiki$$RoundingMZ$hist.png]]
[[Image:MeltDBWiki$$RoundingMZ$histmz.png]]

Revision as of 18:42, 10 April 2008


Round m/z values of mass spectra to nominal values

  • Several Mass Spectral databases contain mass spectra in nominal m/z notation.
  • KEGG compounds database contains more than 10000 compounds with annotated masses
  • Most of the masses are around 1000 Dalton.

MeltDBWiki$$RoundingMZ$histweight.png

  • The possible decimal values of the compounds are dependent on the actual compounds mass.

MeltDBWiki$$RoundingMZ$scatter.png

  • To round m/z to integer values as robust robust as possible, 0.75 instead of 0.5 can be used.

MeltDBWiki$$RoundingMZ$histmz.png