maximum_subarray function

Fast computation of maximum sum subarray

Fast computation of the maximum subarray sum of a vector using Kadane's algorithm. The implementation handles purely negative numbers.

maximum_subarray(x)

Arguments

• x: A vector

Returns

A list with three elements: sum (the maximum subarray sum), start (the starting index of the subarray) and end (the ending index of the subarray)

Examples

maximum_subarray(1:4)

maximum_subarray(c(-2, 1, -3, 4, -1, 2, 1, -5, 4))
 
maximum_subarray(rnorm(100000))

Author(s)

Claus Ekstrom claus@rprimer.dk