Tableau: Dynamically Display The Last n Months From Today

Subscribe: bit.ly/3i3WN4p Step 1:
Build a bar chart using Month([Date]) and sum([Sales])
Step 2:
Create a new parameter as an integer. Set the default value to 12
Step 3:
Write a calculation to test if the month is greater than or equal to today’s date minus n months. Pass the parameter into the n value.
Step 4:
Drag the field to the filter shelf, and only keep true values. Test with your parameter value.