X NEWThe Chainlink Fall 2021 Hackathon kicks off October 22. Sign up today.
X The Chainlink Fall 2021 Hackathon is happening now. Check it out.
NODE OPERATORS Overview Running a Chainlink Node Fulfilling Requests Run an Ethereum Client Performing System Maintenance Connecting to a Remote Database Configuration Variables Enabling HTTPS Connections Best Security and Operating Practices Best Practices for Nodes on AWS Miscellaneous
ORACLE JOBS Migrating to v2 Jobs Cron Direct Request Flux Monitor Keeper Off-chain Reporting Webhook HTTP Bridge JSON Parse CBOR Parse ETH ABI Decode ETH ABI Decode Log ETH ABI Encode ETH Call ETH Tx Multiply Divide Any Mean Median Mode Sum
v1 JSON JOBS [DEPRECATED] Job Specifications Core Adapters Initiators
EXTERNAL ADAPTERS Introduction External Adapters in Solidity Building External Adapters Bridges: Adding External Adapters to Nodes
EXTERNAL INITIATORS Introduction Building External Initiators Adding External Initiators to Nodes

Mean Task

Suggest Edits

Accepts multiple numerical inputs and returns the mean (average) of them.

Parameters

  • values: an array of values to be averaged.
  • allowedFaults (optional): the maximum number of input tasks that can error without the Mean task erroring. If not specified, this value defaults to N - 1, where N is the number of inputs.
  • precision: the number of decimal places in the result.

Outputs

The average of the values in the values array.

Example

my_mean_task [type="mean"
              values=<[ $(fetch1), $(fetch2), $(fetch3) ]>
              precision=2
              allowedFaults=1]

Given the inputs 2, 5, and 20, the task will return 9.