Example 13: Relative standard deviation of amount

  • Scope: Peak or group

  • Type: Double

  • Under Aggregate functions, Find the function for relative standard deviation (RelStdDev("Field or CC",DataSouce as a list).

  • Find a function to get a list of Matching peaks (AllMatchingPeaksOrGroups).

  • Choose the MatchOption. Since you want it for identified compounds, choose Compound. Delta is optional in that case.

  • Define the list of peaks where you want to search the matching peaks (CurrentSequence.AllPeaks).

Formula

RelStdDev("Compound_Amount", AllMatchingPeaksAndGroups(MatchOption.Compound,CurrentSequence.AllIdentifiedPeaks))