On Fri, May 04, 2012 at 12:53:12AM -0700, aaurouss wrote:
Hello,
I'm writing a piece of code where I need to compare multiple same length
vectors.
I've gone through the basic functions like identical() or all(), but they
only work for comparing 2 vectors. From 3 vectors on, it doesn't work .
Example: Assuming
vec1 <- c (1,2,3,4,5)
vec2 <- c(1,2,3,4,5)
vec3 <- c(1,2,3,4,4)
identical (vec1,vec2,vec3) returns TRUE, since the 2 first vectors are
equal. I need a function that returns FALSE if one of the vectors is
different.
Hi.
Try the following.
length(unique(list(vec1, vec2, vec3))) == 1
[1] FALSE
length(unique(list(vec1, vec2, vec1))) == 1
[1] TRUE
Hope this helps.
Petr Savicky.