On 06/09/2012 6:48 AM, Michael Bach wrote:
Dear R Users and Developers,
I am trying to do the equivalent of
v <- c(1,2,3,3,2,1,)
vu <- unique(v)
for a vector such as
v2 <- c(1.02, 2.03, 1.00, 3.04, 3.06)
vut <- ...
As indicated in the subject, we need approximately unique values with a defined
tolerance, i.e. for the v2 vector the resulting vut vector using a tolerance of
.1 should return e.g.
[1] 1.02 2.03 3.06
Also, mean/min values instead of max could be returned.
My actual question: Is there a convenience function or other mechanism already
implemented that could do something similar?
It might be enough to round your values before checking. For the example,
dups <- duplicated( round(v2) )
v2[!dups]
(This gives 3.04 rather than 3.06; I don't know if you care.)
Duncan Murdoch
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