Scenario custom trigger with a projet variable

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Grixis
Grixis PartnerApplicant, Dataiku DSS Core Designer, Dataiku DSS ML Practitioner, Dataiku DSS Adv Designer, Registered Posts: 48 ✭✭✭✭✭

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I have some scenarios building some train models and generating a metric with the RMSE and i would like to launch a second scenario to builde the prediction if RMSE generate by the last scenario is good. (to launch the predictions) I don't find anything corresponding to my problem on the helpers, the only part that comes close is the png part. I thought it would be a trigger like this:

from dataiku.scenario import Trigger

t = Trigger()

if True: ${RMSE}>4 # your condition here

t.fire()

With ${RMSE} the project variable that would change based on the last RMSE obtained from the train's output table?
Is this kind of thing possible on Dataiku in a simple way?

Thanks.

Answers

  • Jediv
    Jediv Dataiker Posts: 17 Dataiker
    edited July 17
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    Hi,

    If we assume that we have a project-level variable called rmse, then we could create a trigger like this to fire off a scenario when that variable is above a number (in this case 4):

    import dataiku
    from dataiku.scenario import Trigger
    
    c_vars = dataiku.get_custom_variables()
    t = Trigger()
    
    if float(c_vars['rmse']) > 4: 
        t.fire()

  • Grixis
    Grixis PartnerApplicant, Dataiku DSS Core Designer, Dataiku DSS ML Practitioner, Dataiku DSS Adv Designer, Registered Posts: 48 ✭✭✭✭✭
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    Thanks for you response.

    What I'm looking for is for my project variable RMSE to be equal to the last calculated metric by the first scenario.

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