Dear All

please help with the following:

I have:

a <-seq(0,10,by=1)
b <-c(10:20)
d <-cbind(a,b)
f <-16

I would like to select the value in column a based on a value in column b, where the value in column b is the 1st value that is smaller then f. Thus I should end up with the number 5 because the 1st value that is below 16 would be 15, and in the same row column a has the number 5.... 

appreciate your insights,

andras
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