The Histogram visualization is similar to a Bar visualization, but it groups numbers into ranges (buckets). Analytics automates the “bucketing” of numbers into ranges, but you can change the settings in Advanced Settings.
To create a histogram:
Histograms support only standard metrics, not calculated metrics.
In the example below, a histogram is used to bucket sessions for the number of persons. The histogram shows that most persons do have between 16-21 sessions for the selected date range.
As part of the visualization, specific histogram settings are available.
Histogram settings | Description |
---|---|
Starting bucket | Determines which bucket the histogram starts with. “1” is the default. You can set starting numbers from 0 to infinity (no negative numbers). |
Metric buckets | Lets you increase/decrease the number of data ranges (buckets.) The maximum number of buckets is 50. |
Metric bucket size | Lets you set the size of each bucket. For example, you can change the bucket size from 1 page view to 2 page views. |
Counting method | Select from Person, Session, or Event. For example, page views per session, or page views per person, or page views per event. |
Examples:
Starting bucket | Metric buckets | Metric bucket size | Result |
---|---|---|---|
1 | 5 | 2 | |
0 | 3 | 5 |
Refer to this blog post about information on using histograms to identify unexpected data values.