I have corrected a typo in my previous posting. In what follows the
line with the inequality is correct
Hi ,
I have two sorted vectors X and Xi, where the range of Xi lies within the
range of X.
For an element in Xi, I want to find the neigbouring data in X, e.g. find an
index ix
so that for element number k, then
X[ix[k]] < Xi[k] < X[ix[k] +1] # also OK with "<=" on either one, but not
both
This is easy to code by looping over the data in X,Xi, but I suspect there
may be a faster and more elegant way to do this in R.
In Python (Numeric) the same can be achieved with
ix=Numeric.searchsorted(X[1:-1],Xi),
which is quite compact.
So, does anyone know of a corresponding R call that can achive the same?
Sincerely,
Halldór
--
Halldór Björnsson
Deildarstj. Ranns. & Þróun
Veðursvið Veðurstofu Íslands
Halldór Bjornsson
Weatherservice R & D
Icelandic Met. Office
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