Qlik Sense: How to aggregate variable values

[g23]

Hello all, 

I'm a beginner of Qlik Sense and I need to aggregate the values of a variable. 

My variable goes from 0 to 365 , and I need to create a variable that aggregates the values into 30, 90 and 365 days.  

It would be appreciated if anyone can give me some suggestions.

Thanks!

[OmarBenSalem]

Go to the script where u have this field:

if(YourField<=30,'30', if(YourField<=60,'60','365')) as NewField

[g23]

Thank you!! 😀