Specify a group of buckets into which you want to recategorize data.

1. Navigate to Breakdowns > Bucket Groups.
2. Click New.
3. Enter a Name that clearly identifies the bucket group, like Age Ranges in Days.
4. Double-click Insert a new row to add a new bucket.
5. Enter a Name for the first bucket, then press Enter or click the green check icon.
6. Double-click in the Start and End columns to enter the starting and ending values for the range.
   Records that match the end value are excluded from the bucket. Therefore, set the end value of one bucket and the start value of the next bucket to be the same. Records that exactly match that value are sorted into the bucket that has that value as the start value.
7. Click Submit after all the bucket ranges have been defined.

Example: Incident Age Ranges bucket group

Consider the case where you want to group incidents by age, as follows:

• Less than a day
• 1–5 days
• 6–30 days
• 30–90 days
• More than 90 days

In Performance Analytics > Scripts, you already have a script named Incident.Age.Days. This script derives the age in days of an incident from its opening date and the latest date on which a score was collected:

var diff=function(x,y){return y.dateNumericValue() - x.dateNumericValue();};
var days=function(x,y){return diff(x,y)/(24*60*60*1000);};
days(current.opened_at, score_end);

You create a new bucket group named Incident Age Ranges (Days). In this bucket group, you define a set of buckets that start at the desired date and end at the beginning of the next bucket. For example, the 06-30 Days bucket starts at 6 and ends at 31:

This bucket will contain incidents from the age of precisely 6 days to the age of 30 days, 23 hours, 59 minutes, and 59 seconds.

At the end, you have a bucket group with five buckets corresponding to the age ranges in which you want to divide incidents.