R语言简单小技巧

分组求均值

exprSet_symbol1 <- aggregate(x = exprSet[,3:ncol(exprSet)],
                            by = list(exprSet$GENE),
                            FUN = mean)

data%>%
  group_by(group)%>%
  summarise(A=mean(A),B=mean(B))

分割字符串

colsplit