Not sure if I understand your challenge.....but find below a thread concerning "missing values"
If you could post the workbook in version 9.0 or higher. Experts on this forum are willing to help you.
Hi Norbert ,
Thank you , I have attached sample TWBX ...
I am doing same in my real time , when I select two region or or three or 4
then you can see trend lines are broken , because
of data ..my user are saying , if I select 1 region then one trend line
will come of course one will come , if I select 2 regions that time also
single trend line
should come & trend line should have value of both the regions , if I
select 3 region together that time also single trend line should come
& trend line should have values of 3 regions like that ...do not how
On Thu, Jan 21, 2016 at 1:04 PM, Norbert Maijoor <
Trend Line Issue .twbx 1.1 MB
Tableau naturally filters trendlines by creating a single line on a chart UNLESS you are using 'Region' on any of options in the Marks card. Therefore, you only have to remove this field from Detail, Color, Size, Label or Path.
Let me know if this solved your problem.