# Interval dimensions

**Interval dimensions** contain members that are intervals of some numeric attribute. For example, Jira Issues cube has **Age interval** dimension which contains time intervals of unresolved issue age (time between creation time and current time) and **Resolution interval** which contains time intervals of resolved issue resolution time.

You can edit intervals from the dimension **All hierarchy level members** section by clicking on the **edit** link.

## Intervals

In **Edit Intervals** dialog you can enter comma separated list of intervals.

The simplest list of intervals is a list of interval end-points. For example `0,7,14,28`

will create intervals:

`(none)`

for values which were empty. These would be issues that are no longer due and do not fall into any of age intervals.`... - 00`

for values less than 0`00 - 06`

for values from 0 (including) to 7 (not including)`07 - 13`

for values from 7 (including) to 14 (not including)`14 - 27`

for values from 14 (including) to 7 (not including)`28 - ...`

for values greater than 28

You can also specify an interval with **from**-**to** range and with an optional **/step**. For example, `0-30/10`

will create intervals:

`(none)`

`... - 00`

`00 - 09`

`10 - 19`

`20 - 29`

`30 - ...`

You can combine together a list of single end-points and a range with a step. For example, `0,7,14,30-100/10`

will create intervals:

`(none)`

`... - 000`

`000 - 006`

`007 - 013`

`014 - 029`

`030 - 039`

- ...
`090 - 099`

`100 - ...`

As you can see the number of leading zeros in the interval names will be calculated dynamically based on the largest interval end-point (to ensure that intervals are sorted correctly in the ascending order).

By default `/10`

is used for interval generation which will group all values in the ranges using a step value 10.

## Interval unit

If the interval dimension is based on a time duration (or age) then you can specify a time unit for interval values - **days**, **hours**, **minutes** or **seconds**. By default **days** interval unit is used.