signature <- read.delim("D:/project/gaea/signature", header=FALSE)%讀取數(shù)據(jù)
關(guān)于read.delim()函數(shù)：delim的含義：A delimited text file is one in which each line of text is a record, and the fields are separated by a known character.也就是說一個(gè)delimited text file 就是每行為一個(gè)記錄泣棋，每個(gè)fields由某字符分割兜看。詳細(xì)含義詳見：read.delim & write.table
查看signature的數(shù)據(jù)類型
mode(signature)
-[1] "list"
按照signature的某一列排序
t = signature[order(signature$V3),]
輸出排序結(jié)果
write.table(t,'D:/project/gaea/signature.out',quote = FALSE, sep = '\t', row.names = FALSE)
