测试列名称是否位于R中的行名称中
我想测试一个矩阵的列名是否包含在矩阵的行名中,即在下面的示例中,如果colnames(abun)和rownames(x)中测试列名称是否位于R中的行名称中,r,match,R,Match,我想测试一个矩阵的列名是否包含在矩阵的行名中,即在下面的示例中,如果colnames(abun)和rownames(x)中 abun <- matrix(c(0.4,0,0.6,0.1,0.4,0.5), nrow = 2, ncol = 3, byrow = TRUE, dimnames = list(c("x", "y"), c("A","B","C"))) abun A B C x 0.4 0.0 0.6 y 0.1 0.4 0.5 x<
abun <- matrix(c(0.4,0,0.6,0.1,0.4,0.5),
nrow = 2, ncol = 3, byrow = TRUE, dimnames = list(c("x", "y"),
c("A","B","C")))
abun
A B C
x 0.4 0.0 0.6
y 0.1 0.4 0.5
x<-data.frame("Trait1" =c(1,1,0,1),
"Trait2"=c(1,1,1,1),
"Trait3" =c(1,1,0,1),
"Trait4" =c(1,0,1,1))
rownames(x)<-c("A","B","C","D")
x
Trait1 Trait2 Trait3 Trait4
A 1 1 1 1
B 1 1 1 0
C 0 1 0 1
D 1 1 1 1
%rownames(x)中的
colnames(abun)%in
返回一个真/假向量,指示colnames(abun)
中的哪个元素出现在rownames(x)
中,您只是要求两个集合的交集吗
intersect(c("A","B","C","D") ,
c("A","B","C"))
[1] "A" "B" "C"
要获得差异,请使用setdiff
:
setdiff(c("A","B","C","D") ,
c("A","B","C"))
[1] "D"
不,我只想测试colnames(一个bun(包含在行名称(x)中),如果它不是,我想在函数中抛出一条错误消息如果a包含在B中,a inter B=a……那么您可以使用if
(intersect(rownames(x),colnames(B))!=rownames(x))stop(…
intersect(c("A","B","C","D") ,
c("A","B","C"))
[1] "A" "B" "C"
setdiff(c("A","B","C","D") ,
c("A","B","C"))
[1] "D"