.bincode
Bin a Numeric Vector
Bin a numeric vector and return integer codes for the binning.
 Keywords
 category
Usage
.bincode(x, breaks, right = TRUE, include.lowest = FALSE)
Arguments
 x
 a numeric vector which is to be converted to integer codes by binning.
 breaks
 a numeric vector of two or more cut points, sorted in increasing order.
 right
 logical, indicating if the intervals should be closed on the right (and open on the left) or vice versa.
 include.lowest
 logical, indicating if an ‘x[i]’ equal to
the lowest (or highest, for
right = FALSE
) ‘breaks’ value should be included in the first (or last) bin.
Details
This is a ‘barebones’ version of cut.default(labels =
FALSE)
intended for use in other functions which have checked the
arguments passed. (Note the different order of the arguments they have
in common.)
Unlike cut
, the breaks
do not need to be unique.
An input can only fall into a zerolength interval if it is closed
at both ends, so only if include.lowest = TRUE
and it is the
first (or last for right = FALSE
) interval.
Value

An integer vector of the same length as
x
indicating which bin
each element falls into (the leftmost bin being bin 1
).
NaN
and NA
elements of x
are mapped to
NA
codes, as are values outside range of breaks
.
See Also
Examples
library(base)
## An example with nonunique breaks:
x < c(0, 0.01, 0.5, 0.99, 1)
b < c(0, 0, 1, 1)
.bincode(x, b, TRUE)
.bincode(x, b, FALSE)
.bincode(x, b, TRUE, TRUE)
.bincode(x, b, FALSE, TRUE)
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