摘要：代码笔记 library(psych)library(pheatmap) #以上导入包S9 <- read.csv(file.choose())rownames(S9)=S9[,1] #将第一列转为列名S9 <- S9[,2:11] #删除第一列S9 <- data.matrix(S9) #将dat 阅读全文

摘要：plot type "p" for points, "l" for lines, 点图 "b" for both points and lines, 折线图 "c" for empty points joined by lines, 点线图(去点) "o" for overplotted point 阅读全文

摘要：添加与修改矩阵的名字> dimnames(vec) <- list(c("e","f"),c("a","b","c")) 先行后列 > vec a b c e 1 3 5 f 2 4 6 > a [1] 2 3 4 > names(a) <- ("a") 给向量加名字 > a a <NA> <NA> 阅读全文

摘要：> a <- c(1:20)给a赋值 > sum(a)求和 [1] 210 > max(a)最大值 [1] 20 > min(a)最小值 [1] 1 > mean(a)平均值 [1] 10.5 > var(a)方差 [1] 35 > sd(a)标准差 [1] 5.91608 > prod(a)连乘 阅读全文

摘要：getwd（）查找当前位置 setwd（dir=""）设置路径注意为/ 赋值： x<- c（5,6,7，8）赋值x为数组，内容为5,6,7,8 names(x) <- c("a","b","c","d")赋值名字 > a <- c(1:100) 给a赋值 > a[c(5:25)] 显示第五个数到第二 阅读全文