Counting Unique values in a series

[ljm]

I am trying to get a count of all the unique names in a list - I can get a count of all the names in the list, but am stumped on how to get the count to be just the unique values.

For instance

Linda

Linda

Linda

James

would return 2

Thanks,

Linda

[Raybaudi]

Hi

where is stored this list of names ?

[ljm]

It is a group name field that I sort on so the example should be like this

Rec 1 Group Name = Linda

Rec 2 Group Name = Linda

Rec 3 Group Name = Linda

Rec 4 Group Name = James

When I sort by group name I can count the members of the groups, but would like a count of groups as well, hence the unique.

[comment]

See if this helps.

[ljm]

That's done it!

Thank you!