Can I calculate standard deviation for a series of velocity results?

[Alex Eldridge]

Hello -

I am looking for a way to show the consistency of team velocity over time.  I am thinking one way to do this would be to graph a series of velocity results from sprints, along with the standard deviation, similar to the control chart view.   A low deviation would indicate consistency and predictability for velocity.

Does anyone know of a tool or available report to achieve this goal?  I could manually pull results and graph them but was hoping for a quicker off the shelf solution.

[Alexey Matveev · Accepted solution]

Hello,

You can use either the Power Scripts or ScriptRunner plugin to develop such a validator.

[Jeremy Price]

Ok, only writing a script would allow me to do this it seems. I do have JWME that allows me to write in Groovy (which I'm not proficient at) , so I'm assuming that would work if I have the right code written? 

[Alexey Matveev]

Yes, JWME also would work