This should get you started.
... | mvexpand Field1 | stats count by Field1
This should get you started.
... | mvexpand Field1 | stats count by Field1
wow. it worked perfect. at first didn't work. then figured out I needed to convert my field to mv before applying any mv functions on it.
final query : ....| makemv delim="," Field1| mvexpand Field1| stats count by Field1