On Jul 21, 2009, at 11:11 AM, MarcioRibeiro wrote:
Hi listers,
I have a problem in identifying a value between two vectors...
Suppose vector A is...
0.0000 0.0909 0.0909 0.1818 0.2727 0.3636 0.4545 0.6363 0.0000
0.0000 0.0000
0.0000
And vector B is...
3 5 7 18 43 85 91 98 100 130 230 487
I would like to identify the value of vector B that vector A is
bigger than
0.5, this means that I want to identify the 9-th value of vector B,
that is
98.
I know how to do that if I had the both vectors as a matrix, but I
want to
do this procedure with two vectors...
Any suggestions...
Thanks in advance,
Marcio
> B <- scan(textConnection("3 5 7 18 43 85 91 98 100 130 230
487"))
Read 12 items
> A <- scan(textConnection("0.0000 0.0909 0.0909 0.1818 0.2727 0.3636
0.4545 0.6363 0.0000 0.0000 0.0000 0.0000"))
Read 12 items
> B[ which(A > 0.5) ]
[1] 98
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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