The green line looks at a cohort of users post-feature change. The blue line targets a cohort of users pre-feature change. It hasn’t been 16 days yet, but the retention chart is populating with data that shouldn’t exist yet. Why?
And how can I make this a cumulative view -- e.g., see retention by day 7, 14, 30 instead of day 0-7, day 7-14, day 14-30?
Hey
One of the common reasons for this is that the selected timeframe could have incomplete data points, owing to the uneven user counts within each day.
Here are some posts which explain this in detail and retention calculation in general -
Also, it looks like you are using custom brackets in your retention chart above.
You can change this to either N-day Retention or Unbounded Retention as per your analysis by changing the measured by dropdown as follows :
Hope this helps!
If you don't have an Amplitude account, you can create an Amplitude Starter account for free and enjoy direct access to the Community via SSO. Create an Amplitude account. You can also create a Guest account below!
If you don't have an Amplitude account, you can create an Amplitude Starter account for free and enjoy direct access to the Community via SSO. Create an Amplitude account. Want to sign up as a guest? Create a Community account.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.