# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #块1号:# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #库(pcaMethods) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #块2号:# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #数据(metaboliteData) mD <——metaboliteData总和(is.na (mD)) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #块3号:# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #估算< - pca(医学博士,npc = 3,方法=“车牌提取”)@completeObs # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #块数量4:# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #数据(metaboliteDataComplete) mdComp <——metaboliteDataComplete总和((mdComp [is.na (mD)]——估算[is.na (mD))) ^ 2) /笔(mdComp [is.na (mD)) ^ 2) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #块5号:# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #库(Biobase)数据(sample.ExpressionSet) exSet < -样本。ExpressionSet exSetNa < - exSet exprs (exSetNa)[样本(13000、200)]< - NA失去< - is.na (exprs (exSetNa)) impExSet < - asExprSet (pca (exSetNa, npc = 2,方法=“车牌提取”),exSetNa)和((exprs (exSet)(失去)- exprs (impExSet)(失去))^ 2)/笔(exprs (exSet)(失去)^ 2)