[R] Which hist cell each value falls in?

[Doug Hill]

Hi, all. I'm using hist() to obtain a vector of break values in an interval.
I then want to be able to identify which cell any value from another vector
falls in.

E.g. applying

> breaks
 [1] -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5  0.0  0.5  1.0  1.5  2.0

to

> x
 [1] -3.74519666 -0.38183630 -1.22884247 -0.20971824 -0.30533939 -0.36271207
[7] -2.27513499 -2.23688653 -1.98827155 -1.48666274 -1.26155084 -0.15234555
[13] -0.09497287  0.34488440

would give

> xcells
 [1] 1  8  6  8  8  8  4  4  5  6  6  8  8  9

where:
                  x <= breaks[1] -> cell 1
breaks[1] < x <= breaks[2] -> cell 2
breaks[2] < x <= breaks[3] -> cell 3, etc.

I'm sure there's either a built-in function or a concise way to do this, but
I've not figured it out.

Thanks,

Doug
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