SUM

Summary

Rolling sum of the input over a fixed period. Each output is the sum of the most recent optInTimePeriod input values.

Formula

$out_i = \sum_{j=i-(N-1)}^{i} inReal_j$, N = optInTimePeriod

Inputs

• inReal — Values to sum

Outputs

• outReal — Windowed sum over the period

Parameters

Parameter	Type	Default	Accepted values	Description
optInTimePeriod	integer	30	2–100000	Window length summed

Properties

Numerical Stability: Start-Independent

Display Flags
☐ Overlap Input
✅ Independent Y-Axis i
☐ Candlestick

Implementation

TA-Lib Definition: sum.c · sum.yaml

Native	File
C	ta_SUM.c
Rust	sum.rs
Java	Core_SUM.java

TA-Lib is also available for Python, R and more using a wrapper.

Aliases

Summation, Rolling Sum, Moving Sum

See Also

SMA