Find the ‘bounds’ (i.e. start, end and length) of consecutive numbers within a larger set of numbers in a given vector.
bounds(nums, dup.inds=FALSE, pre.sort=TRUE)
a numeric vector.
logical, if TRUE the bounds of consecutive duplicated elements are returned.
logical, if TRUE the input vector is ordered prior to bounds determination.
This is a simple utility function useful for summarizing the contents of a numeric vector. For example: find the start position, end position and lengths of secondary structure elements given a vector of residue numbers obtained from a DSSP secondary structure prediction.
By setting ‘dup.inds’ to TRUE then the indices of the first (start) and last (end) duplicated elements of the vector are returned. For example: find the indices of atoms belonging to a particular residue given a vector of residue numbers (see below).
Returns a three column matrix listing starts, ends and lengths.
Grant, B.J. et al. (2006) Bioinformatics 22, 2695--2696.
#> start end length #> 1 1 5 5 #> 2 8 8 1 #> 3 10 15 6#> start end length #> [1,] 1 1 2 2 #> [2,] 2 3 5 3 #> [3,] 3 6 9 4