An optimization result object ('optimizationResult')Algorithm: xcms3Parameter set 1/1 (BEST):    Experimental designs tested: 2    Starting params:    - groupMethod: density    - retAlignMethod: obiwarp    - bw: c(22, 28)    Optimized params:    - groupParam: new("PeakDensityParam", sampleGroups = c("solvent-pos", "solvent-pos"), bw = 20.5, minFraction = 0.5, minSamples = 1, binSize = 0.25, maxFeatures = 50)    - retAlignParam: new("ObiwarpParam", binSize = 1, centerSample = integer(0), response = 1, distFun = "cor_opt", gapInit = numeric(0), gapExtend = numeric(0), factorDiag = 2, factorGap = 1, localAlignment = FALSE, initPenalty = 0, subset = integer(0), subsetAdjust = "average")    Best results: exp_index: 1; good_groups: 125; bad_groups: 30; GS: 520.833333333333; RCS: 99.3871043470511; retcor_done: 1Best parameter set: 1