Anatomy of a Metric

class InitialPaymentMetric(FieldMetric):
    model = Quote
    identifier = 'initial_payment'
    field = 'inipmt'

Metric types

• FieldMetric
• DependencyMetric
• ConcatenationMetric

• ListAggregationMetric

• CountMetric

• SeriesMetric

Math metrics

                   + - * / 

How do I

• make a new metric
• do custom logic (beyond fieldmetric)
• add metrics to a new app

Make a new metric

• make a new class in any app's metrics.py
• metrics are autodiscovered

Custom Metric Logic

• Implement `calculate`

class QuoteCount10X(DependencyMetric):

    identifier = '10x'

    dependencies = [QuoteCountMetric]

    def calculate(self, df):

        return df[QuoteCountMetric.identifier] * 10

Add metrics to a new app

settings.py

METRICS_APPS = (
    'webapp.apps.energy',
    'webapp.apps.ops',
    'webapp.apps.solar',
    'webapp.apps.solar.product',
    'webapp.apps.solar.system',
    'webapp.apps.user'
)