Thank you Jim!

@CTrahon0526 If you're new to JMP, here's a bit more elaboration on what Jim shared.

You can put the Col Number() function in a column formula and compute it directly in the data table.

I'm attaching a mock example jmp data table.

First, I created a "Year Week" column by using an Instant Column Formula in JMP. Right Click on the time column, New Formula Column > Date Time > Year Week.

Then I created a "Count by Year Week" column with the following column formula in it:

`Col Number(:time, :Year Week)`