Convert vector of 0 and 1 to binary vector in R

Question

It is quite surprise to me that I could not find a ready answer for this question on stackoverflow.

In R, I have a vector of 0 and 1 , and I want to convert it to binary vector, with 0 becomes F and 1 becomes T .

How could I do that?

Thanks

Answer 1

My comment should have been an answer. You can just do:

as.logical(c(0,1,1,0))

Answer 2

We can use !! :

rep(0:1, 5)
[1] 0 1 0 1 0 1 0 1 0 1

!!rep(0:1, 5)
[1] FALSE  TRUE FALSE  TRUE FALSE  TRUE FALSE  TRUE FALSE  TRUE

All 0s will be converted to FALSE , any other numeric to TRUE .

Answer 3

We can use !=

c(0,1,1,0)!=0
#[1] FALSE  TRUE  TRUE FALSE

Answer 4

如果内存中的对象大小很重要（TRUE或FALSE为56位大小），则位封装是一个不错的选择，它可以将向量中的TRUE或FALSE值转换为1位值向量。