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11/16/2023, 3:09 PMexperiment_id
is a unique identifier, usually a string like 'my-cool-experiment', for an experiment within GrowthBook. It is used when filtering your experiment assignment source to query experiment exposure data. This ID is crucial for tracking and analyzing experiments, as it allows you to pinpoint the specific experiment you are interested in when looking at your data.variation_id
is an identifier used within GrowthBook to distinguish between different variations of an experiment. It is typically an integer that represents the position of a variation within an array of variations. For example, if you have an experiment with two variations, "control" and "treatment", they might be assigned variation_id
values of 0
and 1
, respectively.
This identifier is used in tracking and analyzing experiment data, as it allows you to determine which variation a user was exposed to during an experiment. The variation_id
is included in the payload of experiment assignment queries and is expected to be returned as part of the data structure for tracking experiment exposure.| user_id | timestamp | experiment_id | variation_id |
|---------|---------------------|-----------------|--------------|
| 123 | 2021-08-23-10:53:04 | my-button-test | 0 |
| 456 | 2021-08-23 10:53:06 | my-button-test | 1 |
In this example, user_id
123 saw variation 0
of the my-button-test
experiment at the given timestamp, and user_id
456 saw variation 1
at a different timestamp.
For more details, you can refer to the Experiment Assignment Queries section in the GrowthBook documentation.acceptable-sundown-14551
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