I share an interesting and simple guide with many links on Power BI issued in recent days by Microsoft , not much goes in detail, but the links are very interesting:
Giorno: 26 febbraio 2016
Power BI Soccer Example
A simple example of how to use Power BI to create an interesting and attractive reports .
It is a simple linked to football reporting where you can see for the football team and the player throws as its shot position and if it’s a Goal or not.
Q&A Power BI and Cortana
A very interesting feature that was present from the first version of Power BI is the Q & A . In practice, the Power bi used imported data inside the model to answer questions about the data.
Today the same function exists yet on Power bi, and I refer you to the following video you tube if you want to see how it works: Power BI Q&A
Dax Tips and Tricks: Divide vs Divide
An interesting function on DAX si DiVIDE.
Un interessante funzione che pochi conoscono e sfruttano in DAX è DIVIDE. It often happens that when you create a measure in dax , especially if you take advantage of the time intelligence you want to create delta and Delta % Measure.
Normally a person would write , to make a Delta % vs PY CY , the following formula :
Delta % CY vs PY := ([AMount CY] -[Amount PY]) / [Amount PY]
What usually happens is the abscence of py data, dax not handle in automatic a value divide by zero and this is what happen:
A simple solution can be use the if statement:
if(isblank([amount py]);0;formula).
This Formula is very inefficient for you and for the model, you have to use this:
Delta % CY vs PY:=divide([AMount CY] -[Amount PY];[Amount PY];0)
In automatic way Dax control if it’s possible to do the division, if isn’t possible then:
- insert blank value if i don’t insert nothing in the formula
- Insert specific value ( in our example the zero value)
