One approach is the following:
x <- rnorm(5)
y <- matrix(rnorm(5*2), 5, 2)
check <- y - x
check[, 1] * check[, 2] < 0
I hope it helps.
Best,
Dimitris
On 6/24/2011 10:57 AM, Salih Tuna wrote:
Hi All,
What is the fastest way of finding if any members of vector x fall in the
range of the rows of matrix y?
I do not want to use two for loops as this will take forever.
Any help will be appreciated,
best,
salih
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Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
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