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Template:Longitudinal data intro: Difference between revisions
Template:Longitudinal data intro (view source)
Revision as of 00:54, 1 September 2016
, 1 September 2016Add big neon sign suggesting users focus on the l10l set
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The longitudinal dataset is a summary of main pings | The longitudinal dataset is a summary of main pings. If you're not sure which dataset to use for your query, this is probably what you want. It differs from the main_summary table in two important ways: | ||
* The longitudinal dataset groups all data for a client-id in the same row. This makes it easy to report profile level metrics. Without this deduping, metrics would be weighted by the number of submissions instead of by clients. | * The longitudinal dataset groups all data for a client-id in the same row. This makes it easy to report profile level metrics. Without this deduping, metrics would be weighted by the number of submissions instead of by clients. | ||
* The dataset uses a 1% of all recent profiles, which will reduce query computation time and save resources. The sample of clients will be stable over time. | * The dataset uses a 1% of all recent profiles, which will reduce query computation time and save resources. The sample of clients will be stable over time. | ||