<< cumprod

Data analysis

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cumsum

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Cumulative sum of array elements.

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Syntax

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R = cumsum(M)

R = cumsum(M, d)

R = cumsum(M, d, direction)

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

Input argument

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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

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R

Cumulative Sum of array elements.

Description

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

Example

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

See also

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ndims, sum, cumprod.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET