How can I use COUNTD function in Tableau?

Question

Sample Data:

Col1 Col2

A   x

A   x

A   y

B   x

C   z

What I want?

I just want to represent the (Col1) on a graph in the X-axis to the unique references of the data(Col2) on the Y axis

I need something similar like, A (2) ; B (1) ; C (1).

Can someone tell me how can I use COUNTD function in this case?

Answer 1

First, add Col1 to the Columns shelf.

Then place COUNTD(Col2) in the Rows shelf & then right-click it and select Measure / Count (Distinct).)

This will give you a bar chart by default.

For a table, place COUNTD(Col2) into the Text shelf instead.

Hope this answer helps you!