[R] Returning Non-Unique Index with Which (alternatives?)

[andrew]

Hi Gundala,

The following should work.

x <- numeric(length(qr))
for(k in 1:3) x[k] <- which(repo %in% qr[k])

also, be careful about overwriting qr - it is an base package
function.

regards,

Andrew

On Jan 13, 1:41 pm, "Gundala Viswanath" <gunda... at gmail.com> wrote:
> Dear all,
>
> I tried to find index in repo given  a query with this:
>
> > repo <- c("AAA", "AAT", "AAC", "AAG", "ATA", "ATT")
> > qr <- c("AAC", "ATT", "ATT")
> > which(repo%in%qr)
>
> [1] 3 6
>
> Note that the query contain repeating elements, yet
> the output of which only returns unique.
>
> How can I make it returning
>
> [1] 3 6 6
>
> instead?
>
> - Gundala Viswanath
> Jakarta - Indonesia
>
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