# mergeIntervals.numeric

0th

Percentile

##### Merges intervals

Merges intervals by returning an index vector specifying the (first) interval that each value maps to, if any.

Keywords
methods, utilities, programming
##### Usage
# S3 method for numeric
mergeIntervals(intervals, ...)
##### Arguments
intervals

The N intervals to be merged. If an Nx2 numeric matrix, the first column should be the lower bounds and the second column the upper bounds of each interval. If a numeric vector of length 2N, each consecutive pair should be the lower and upper bounds of an interval.

...

Not used.

##### Details

The upper and lower bounds are considered to be inclusive, that is, all intervals are interpreted to be of form [a,b]. There is currently no way to specify intervals with open bounds, e.g. (a,b].

Furthermore, the bounds are currently treated as real values. For instance, merging [0,1] and [2,3] will return the same intervals. Note, if integer intervals were treated specially, we would merge these intervals to integer interval [0,3] == {0,1,2,3}.

##### Value

Returns a matrix (or a vector) of M intervals, where M <= N. The intervals are ordered by their lower bounds. The @mode of the returned intervals is the same as the mode of the input intervals.

inAnyInterval(). match().