Day5-数据结构
脚本保存
脚本使用
R操作过程
#向量写法
x<- c(1,2,3)
x
x<- 1:10
x
x<- seq(1,10,by = 0.5)
x
x<- rep(1:3,times=2)
x
#提取向量
x[4]
x[-4]
x[2:4]
x[-(2:4)]
x[c(1,5)]
x[x==10]
x[x<0]
x[x %in% c(1,2,5)]
#读取数据
X<-read.csv('doudou.txt')
X
read.table(file ="huahua.txt",sep = "\t",header = T )
a <- read.table(file = "huahua.txt",sep = "\t",header = T)
X
X<-read.csv('doudou.txt')
#行名列名
colnames(X)
rownames(X)
colnames(X)[1]<-"bioplanet"
X<-read.csv(file = "huahua.txt",sep = " ",header =T,row.names=1)
X
#导出
write.table(X,file = "yu.txt",sep = ",",quote=F)
#保存R.data
save.image(file="bioinfoplanet.RData")
save(X,file="test.RData")
