Home
Function References
Reference for all built-in functions
Functions
W
wavg

About DolphinDB
Getting Started
Deployment
Deploy and upgrade DolphinDB on premise or in the cloud
Programming Guide
DolphinDB scripting language and SQL reference
Database
Core features of DolphinDB's distributed architecture, basic database operations, and configuration setup.
Streaming
Publish, subscribe to, and process streaming data
Orca
Migration
Import and migrate data from various data sources to DolphinDB databases
Maintenance
Database maintenance and system management
Troubleshooting
Common errors and corresponding solutions
Function References
Reference for all built-in functions
API & Connector
API in different languages for users to call DolphinDB from their programs
Plugins
Guidance on the use of plugins and plugin development for multiple application scenarios
MCP Introduction
Introduction on using DolphinDB MCP
Tutorials
Tutorials on database concepts and application scenarios
Release Notes
Release notes and compatibility changes for DolphinDB server, plugins and APIs

wavg

Syntax

wavg(value, weight)

Details

Calculate the weighted average of X with the weight vector Y. Please note that the weight vector Y is automatically scaled such that the sum of the weights is 1.

Parameters

value is the value vector.

weight is the weight vector.

Returns

A numeric scalar.

Examples

wavg(2.2 1.1 3.3, 4 5 6);
// output: 2.273333
//  (2.2*4+1.1*5+3.3*6)/(4+5+6)

wavg(1 NULL 1, 1 1 1);
// output: 1

Related functions: wsum, twavg