Dynamic Parameters for What if analysis
[Will Thompson] I've just merged a couple of very close scenarios, which all have similar great ideas! Something we're considering for the future, so I'm keen to hear your feedback on this. I like this core scenario of a numeric value that is bound to a slider control, and can then be used as part of some expression.
- In a sales report, I can adjust a '% increase' slider to see what impact a small change in revenue might have had on my sales.
- In a mortgage calculator, I can change the % rate, borrowed amount and term to see projected repayments
- In a quota report I might change a 'Opportunity confidence' control to see the likely bonus I could earn at the end of the year.
Please, keep voting and help us prioritize this!
Original suggestions follow:
So this scenario brings what-if-analysis to the visualization without changing the underlying data source. Let's say I have a table that has numeric values (integers, floating values, etc.). I created a chart (column, line, etc.) visual of that table data. Then instead of using SUM, AVG, COUNT, DISTINCT COUNT, I now can use a math expression applied to the numeric value (say I want to see what my chart looks like if I increase sales by 10%). Then I would see the new column in my table (calculated column with new values). I can now add that new column to the chart and graph that, labeling that as 'if sales increased by 10%' to show how that would compared to the actual numbers I see.
SUBHOLINA DEB commented
WHAT IF ANALYSIS IS VERY MUCH WANTED FEATURE IN POWER BI??
Tien Dung Thoi commented
I like the "% increase" slider idea, please do that.
For many more "conservative" users, a "data entry" box where they can type in 1.123456% would be even better, but that will possibly require the notion of a global variable, a separate thread.
we would like to have this possibility. To change one or some parameters to look the impact of some changes.
What will be my charge if some taxe goes for 1 to 1.2 ?
Thank you to add this !
This describes what we need also; thanks to whomever shared. A slider for different scenarios would be a great enhancement.
This is a much needed feature for a true BI application. I view this feature similar to how you could have a linked table in a PowerPivot model, and each user with a copy of the model can have their own set of "what-if" values/parameters that affect the measure calcuations. This doesn't seem to be an option for SSAS Tabular, unless the model only has 1 user that determines the "ad-hoc" sources.
Here's an article that describes this scenario in PowerPivot and what would be nice from a Power BI and SSAS Tabular perspective.
Rajnish Sinha commented
For the existing parameter feature, you have to set the parameter value before hand and it remains constant until you change and refresh your model again. The request here is to create dynamic parameters that you can adjust without the need to refresh the model. Also, the ability to use this parameter value in creating custom columns (calculations), or measures. And the ability to expose this parameter in form of a text box or a range slider so that you can use this on your report and make changes to the value affecting the calculated fields/measures. Please let me know if additional information is required.
Can you please explain how the current parameter implementation doesn't solve this?
Mark Walter commented
I think this is already possible in a Dax measure that references a disconnected table that holds your parameters. Write your IF statement to look to the 'max' number option selected in your parameter table. If max=1, then ..., if max=2, then ... that way, when you slice to 1, you get a different variable calculated in your result. Choose 2 and your measure changes again.
Ivan Tamburic commented
It would be also great if we had ability to bind user file (excel, txt, csv) to parameter, directly on reports.
Filter report using file that contains customer IDs.
Alan Walnoha commented
We also would like to have a slider for these What If analysis.
We have the same need. We need a mechanism that avoids users going to the data model and tweaking parameter tables.
Rajnish Sinha commented
Thanks Jan, but in this case you're pre-defining the value set, it would be great to have ability to either pre-define, or just specify a value on the fly in a text box in the report.
You can already do this with disconnected tables. See the following two posts:
Tony Kriston commented
Great idea... the more interactive, the better!
Binh Cao commented
would be great if we can integrate DAX Studio into this request to allow editing and drag/drop of formulas for what-if-analysis data exploration
Binh Cao commented
I also want to add that Power BI team should think about helping the users create calculations faster and more accurately.....like allowing formulas to be dragged into an editor and columns from field list to be dragged into the arguments for the formulas instead of letting users type in without any hints or help to complete the formula.
Please seriously consider adding this feature.
Tableau took advantage of this feature to laugh at Power BI already.
Tableau has this feature. our users are asking it for very long time
Iman Eftekhari commented
There is a workaround for this: http://www.agilebi.com.au/perform-what-if-analysis-power-bi/
Agree that it should be added as a built-in feature.