How to separate data into groups of how often they appear?

[msage]

Looking to create a chart that can separate results into groups of how often they appear in a time range. 

We're looking to figure out attendance in our office and find out which employees are showing up 1, 2, 3 times per week to get a better understanding. Is this something that can be done?

[ITWhisperer]

Do you mean something like this?

| bin _time span=1w
| stats count as attendance by _time employee
| stats count as frequency by _time attendance