On 13-01-17 4:50 PM, C W wrote:
Dear list,
How do you delete repeated samples? In MCMC, when your candidate value has
been reject, so you remain on the same point, so you keep that value.
Say I have this toy example,
c(1,6,6,6,3,5,4,4,2,3,5)
The 6 and 4 are repeated, I only want the index of the non-repeated values.
I thought of using which() and unique(), but that does not give you the
index of the unique values.
You could use x[!duplicated(x)] or rle(x)$values, depending on your
definition of "repeated". I hope you're aware that you can't use either
for things like quantiles and moments of the limiting distribution.
> x <- c(1,6,6,6,3,5,4,4,2,3,5)
> x[!duplicated(x)]
[1] 1 6 3 5 4 2
> rle(x)$values
[1] 1 6 3 5 4 2 3 5
Duncan Murdoch
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