====Data Sets====

In the [[KPICapture|KPICapture]] library, you can record data into a 'data set'. 

While data sets can be very specific - such as focusing on a particular area of a facility or part of a machine - they're usually used to record different //time resolutions// of data.

Since a KPICapture data set only records **daily** information (ie. you can't have more than one point with a given name in a single day), you might choose to split some analytic values up into distinct sets.

For example, a **daily** set (with your 24 hour totals), a **morning** set (with the shift totals from the morning shift), a **evening** set (with totals from evening/night shifts) or a **weekly** set with coarser-grain data.

===Using===

You choose a data set every time to create a [[capturing_data|KPICapture]] or [[retrieving_data|KPIAccess]] object.

===Data Storage===

As mentioned, this system is **very** basic, allowing it to be used on ARDI servers regardless of what infrastructure (ie. databases) might be available.

By default, a folder is created //one folder below the report folder//, called **_capture**. This can be overridden with an optional 2nd parameter to the constructors for **KPICapture** and **KPIAccess**.

This '_capture' folder itself contains a folder for every [[data set|data set]] you create.

Inside each of these data-set folders, you'll find a JSON file for each day.

===Backgeneration===

The [[report_list:back_generate|Back-Generating]] function was added to the ReportList addon to help fill-in values when you've added new logic to your reports or new values you're capturing with KPIAccess.