source <- read.csv(file.choose(),stringsAsFactors = F,header = T,row.names = 1)
PRC <- source[,order(as.numeric(source[4,]))]
write.csv(PRC,"PRC.csv")
source <- read.csv(file.choose(),stringsAsFactors = F,header = T,row.names = 1)
PRC <- source[,order(as.numeric(source[4,]))]
write.csv(PRC,"PRC.csv")
本文标题：按表格中的第4行排序
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