R.utils: mergeIntervals.numeric – R documentation

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R.utils

mergeIntervals.numeric

Merges intervals

Description

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

Usage

## S3 method for class '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.

Author(s)

Henrik Bengtsson