Average metrics doctest

[wanjuntham]

Fixes part of #2265

Description:

• Add doctest for Average metric

Check list:

• New tests are added (if a new feature is added)
• New doc strings: description and/or example code are in RST format
• Documentation is updated (if required)

[wanjuntham]

Hi @ydcjeff , may I have a little guidance on how you achieve #2241 ? I am really new to this repo/package, and I am not sure what are the objects/variables required to execute Average.

[ydcjeff]

Hi @wanjuntham I have updated the contributing guide in #2278 and you can read the rendered docs here.

Basically, you need to

1. define some dummy engine and data
2. attach the metrics to the engine and run the engine
3. get the computed metrics and test with the result in .. testoutput::.

[sdesrozis]

@wanjuntham Thank you for your interest. Are you still working on this PR ?

[wanjuntham]

@wanjuntham Thank you for your interest. Are you still working on this PR ?

Hey, I am sorry that I didnt have time to work on this. Please unassign me from the issue.