cumsum

Cumulative sum of array elements.

Syntax

  • R = cumsum(M)

  • R = cumsum(M, d)

  • R = cumsum(M, d, direction)

  • R = cumsum(M, d, direction, nanflag)

Input argument

  • M - an array of double, single, integers, ...

  • d - dimension to operate along: positive integer scalar.

  • direction - a string: 'reverse', 'forward' (default).

  • nanflag - a string: 'includenan' (default) or 'omitnan'.

Output argument

  • R - Cumulative Sum of array elements.

Description

R = cumsum(M) returns the cumulative sum of the array elements of M.

Example

M = uint8([10:30:70;20:30:80;30:30:90]);
R = cumsum(M)
R = cumsum(M, 'reverse')

See also

ndims, sum, cumprod.

History

VersionDescription

1.0.0

initial version

Author

Allan CORNET

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