You can find a lot of useful tutorials here on the site, i recommend that you take a look around.
1) use a count function to return the number of the desired dimension or use "number of Records" which is a default measure in tableau to return the number of records. I'd say count(DOB)
2) you can take the date field and place it in the filters panel which will promote many different options on how to use the desired filter, for your case i'd recommend:
Here is a link to available topics covered by tableau.
Best of luck!
First and foremost, you need to know your data structure. Then be able to use filters appropriately with calculated fields to determine the result.
Attached is packaged tableau workbook where I have put together one of the ways to handle your request. It involves 3 records. You can use BIRTHDAYS filter to assign the range of start and end dates so that distinct count is retrieved.
Have fun learning data visualization techniques and feel free to ping back!
Birthdays.twbx 16.0 KB
Thank you Dhanashree for your reply , but I don't see any workbook attached to the msg . can you pls forward it again ...please
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I believe that is because I am on latest version of Tableau 10.0.0. Looks like it is not backward compatible. If you can figure out a way to save it and open in your version, then you can get lucky.
Meanwhile, here is how it looks:
1) Retrieving 2 birthdays:
2) Retrieving 3 birthdays:
I am loading CountBirthdates with this logic COUNTD([Birthdate])
StartDate is based on Enter Start Date parameter which is based on minimum birthdate
EndDate is based on Enter End Date parameter which is based on maximum birthdate
Hope that helps!
If you can post a sample of your data, or a packaged workbook, then we can give you a better idea of a solution to your problem.