Defines a cohort group. For example:

"cohortGroup": {

"cohorts": [{
  "name": "cohort 1",
  "type": "FIRST_VISIT_DATE",
  "dateRange": { "startDate": "2015-08-01", "endDate": "2015-08-01" }
},{
  "name": "cohort 2"
   "type": "FIRST_VISIT_DATE"
   "dateRange": { "startDate": "2015-07-01", "endDate": "2015-07-01" }
}]

}

Attributes

• cohorts (list(GoogleApi.AnalyticsReporting.V4.Model.Cohort.t)): The definition for the cohort. Defaults to nil.

• lifetimeValue (boolean()): Enable Life Time Value (LTV). LTV measures lifetime value for users acquired through different channels. Please see: Cohort Analysis and Lifetime Value If the value of lifetimeValue is false:

• The metric values are similar to the values in the web interface cohort report.

• The cohort definition date ranges must be aligned to the calendar week and month. i.e. while requesting ga:cohortNthWeek the startDate in the cohort definition should be a Sunday and the endDate should be the following Saturday, and for ga:cohortNthMonth, the startDate should be the 1st of the month and endDate should be the last day of the month.

When the lifetimeValue is true:

• The metric values will correspond to the values in the web interface LifeTime value report.
• The Lifetime Value report shows you how user value (Revenue) and engagement (Appviews, Goal Completions, Sessions, and Session Duration) grow during the 90 days after a user is acquired.
• The metrics are calculated as a cumulative average per user per the time increment.
• The cohort definition date ranges need not be aligned to the calendar week and month boundaries.
• The viewId must be an app view ID Defaults to nil.