Find Interval Indices
Find indices i in vector xs such that either x=xs[i]
or such that xs[i]<x<xs[i+1] or xs[i]>x>xs[i+1].
findintervals(x, xs)
x |
single number. |
xs |
numeric vector, not necessarily sorted. |
Contrary to findInterval, the vector xs in
findintervals need not be sorted.
Vector of indices in 1..length(xs).
If none is found, returns integer(0).
If x is equal to the last element in xs, the index
length(xs) will also be returned.
xs <- zapsmall(sin(seq(0, 10*pi, len=100))) findintervals(0, xs) # 1 10 20 30 40 50 60 70 80 90 100
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