Hi to all,
    we have a dashboard on a dimensional model, and a crosstable visualization that show in row the City and in columns the years and use a misure as a value.
What we want to do is to introduce another column that calculate the difference between two years (as show in picture belowe)



------------------------------
Vincenzo gonino
------------------------------

#CognosAnalyticswithWatson

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------

Hi Robert, 
   a light in the dark of the dashboard :)

Question: How can I do if a want to show in a viz only the difference?  

What do you think about "running-difference" ? Can I use to get the same result ( if I use the correct "at" and "for" clause)?
If I want to calculate for example the average between the two date, need I to write the formula or can I use the average function? 

Thanks for all. 


------------------------------
Vincenzo Gonino
------------------------------

Original Message:
Sent: Fri October 22, 2021 02:12 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------

Hi Vincenzo,

just use the calculation as value - that's all. Maybe you have to adjust the aggregation rule of the calculation. Just open the properties via right-click on the calculation in the source pane on the left.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------

Original Message:
Sent: Fri October 22, 2021 04:23 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi Robert, 
   a light in the dark of the dashboard :)

Question: How can I do if a want to show in a viz only the difference?  

Thanks for all. 


------------------------------
Vincenzo gonino
------------------------------


Original Message:
Sent: Fri October 22, 2021 02:12 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen

Hi (guru) Robert
thanks, I tried but I get some errors that I try to solve. 

In the same scenario, what do you think about "running-difference" ? Can I use to get the same result ( if I use the correct "at" and "for" clause)?
If I want to calculate for example the average of a misure between the two date, need I to write the formula or can I use the average function? 

Thank's in advance. 

------------------------------
Vincenzo gonino
------------------------------

Original Message:
Sent: Fri October 22, 2021 04:30 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

just use the calculation as value - that's all. Maybe you have to adjust the aggregation rule of the calculation. Just open the properties via right-click on the calculation in the source pane on the left.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------


Original Message:
Sent: Fri October 22, 2021 04:23 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi Robert, 
   a light in the dark of the dashboard :)

Question: How can I do if a want to show in a viz only the difference?  

Thanks for all. 


------------------------------
Vincenzo gonino


Original Message:
Sent: Fri October 22, 2021 02:12 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen

Hi Vincenzo,

those functions are best used with a relational data module (tables), not OLAP. If you'd like to achieve a running total/difference I suggest to use the PeriodsToDate function together with CurrentMember to iterate over your time dimension. I'm using this approach for running-totals in reports based on cubes.
Everything else I cannot say as I don't know your data and your cube structure.

Regarding average: you can also adjust the aggregation rule of your calculation when you uncheck the "Calculate after aggregation" property:

Depending on what average you exactly want to compute this might be an option.

I'd also suggest to have a look at the IBM Accelerator Catalog where some videos are linked which describe how to build dashboards.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------

Original Message:
Sent: Fri October 22, 2021 06:45 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi (guru) Robert
thanks, I tried but I get some errors that I try to solve. 

In the same scenario, what do you think about "running-difference" ? Can I use to get the same result ( if I use the correct "at" and "for" clause)?
If I want to calculate for example the average of a misure between the two date, need I to write the formula or can I use the average function? 

Thank's in advance. 

------------------------------
Vincenzo gonino
------------------------------


Original Message:
Sent: Fri October 22, 2021 04:30 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

just use the calculation as value - that's all. Maybe you have to adjust the aggregation rule of the calculation. Just open the properties via right-click on the calculation in the source pane on the left.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen


Original Message:
Sent: Fri October 22, 2021 04:23 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi Robert, 
   a light in the dark of the dashboard :)

Question: How can I do if a want to show in a viz only the difference?  

Thanks for all. 


------------------------------
Vincenzo gonino


Original Message:
Sent: Fri October 22, 2021 02:12 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen

Thank you very much Robert!

------------------------------
Vincenzo gonino
------------------------------

Original Message:
Sent: Fri October 22, 2021 07:49 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

those functions are best used with a relational data module (tables), not OLAP. If you'd like to achieve a running total/difference I suggest to use the PeriodsToDate function together with CurrentMember to iterate over your time dimension. I'm using this approach for running-totals in reports based on cubes.
Everything else I cannot say as I don't know your data and your cube structure.

Regarding average: you can also adjust the aggregation rule of your calculation when you uncheck the "Calculate after aggregation" property:

Depending on what average you exactly want to compute this might be an option.

I'd also suggest to have a look at the IBM Accelerator Catalog where some videos are linked which describe how to build dashboards.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen
------------------------------


Original Message:
Sent: Fri October 22, 2021 06:45 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi (guru) Robert
thanks, I tried but I get some errors that I try to solve. 

In the same scenario, what do you think about "running-difference" ? Can I use to get the same result ( if I use the correct "at" and "for" clause)?
If I want to calculate for example the average of a misure between the two date, need I to write the formula or can I use the average function? 

Thank's in advance. 

------------------------------
Vincenzo gonino


Original Message:
Sent: Fri October 22, 2021 04:30 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

just use the calculation as value - that's all. Maybe you have to adjust the aggregation rule of the calculation. Just open the properties via right-click on the calculation in the source pane on the left.

------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen


Original Message:
Sent: Fri October 22, 2021 04:23 AM
From: Vincenzo gonino
Subject: adding calculation on dashboard

Hi Robert, 
   a light in the dark of the dashboard :)

Question: How can I do if a want to show in a viz only the difference?  

Thanks for all. 


------------------------------
Vincenzo gonino


Original Message:
Sent: Fri October 22, 2021 02:12 AM
From: Robert Dostal
Subject: adding calculation on dashboard

Hi Vincenzo,

well I came to the conclusion that in most cases Dashboards are here to show data "as is". It's not as flexible as Report Studio but you can try a few things.
Of course you can create a calculation based on your time dimension:
Open the context menu with a right-click and choose "Calculation".

Drag the members on your calculation editor with the right formula like "2012-2011":

Now you can use the calculation in a viz. Unfortunately you can not add it as another coulmn or row - as far as I know this is only possible in Report Studio. We also use those calculations and tweka the dashboard canvas a bit with overlapping visualizations.
You can add this calculation as another measure but then you'll get the value below every year:


Another way would to change the model of your cube so that the time dimension already contains the needed calculations as members.
You can also create a calculated set in your Dashboard but keep in mind that you have to convert the calculation into a member:

Then show the created set in columns:

Hope this helps.



------------------------------
Robert Dostal
Team Leader BI
GEMÜ
Ingelfingen