[R] How can we compare two vectors?

[Jessica Streicher]

> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> x==y

[1]  TRUE  TRUE  TRUE  TRUE FALSE

> which(x==y)

[1] 1 2 3 4

> which(x!=y)
 [1] 5

> x[x!=y]

[1] 30

> y[x!=y]

[1] 31

RTFM! - just kidding ;)

also, this might not work for floating point numbers, theres a section in the documentation/faq somewhere about it.

On 08.08.2012, at 14:00, Sri krishna Devarayalu Balanagu wrote:

> x=c(5, 8, 28, 29, 30)
> y=c(5, 8, 28, 29, 31)
> How can we compare these two vectors, whether each element is exactly matched with the elements in the other vector ?
> How can we get the non matched elements from both the vectors?
> Can anyone help?
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