您正在寻找这样的东西吗?
df1 = data.frame(Yes=c(0.38, 0.34), No=c(0.62, 0.66))
rownames(df1) = c("Man", "Woman")
df1
## Yes No
## Man 0.38 0.62
## Woman 0.34 0.66
df2 = t(df1)
df2
## Man Woman
## Yes 0.38 0.34
## No 0.62 0.66
df2[1,]
## Man Woman
## 0.38 0.34