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

Version	📄 Description
1.0.0	initial version