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Messages - betagammacat

metaXCMS / How to track the common feature metabolic product name?
When I finished the 5 groups meta XCMS analysis and got about 40 common feature products. However, I read the protocol, and found the common feature products did not have the name even the raw xcms data set with information.  My first question is which feature I could use to track the common feature products name? the "mzmed" or "rtmed".
I have tried to filter  the common feature product with the different group raw xcms data, and found the overlap rate pretty low, just about 70% percentage.  So my second question is the common features is really come from the each group raw data?
anyone could help me? thanks