I'm trying to have my line chart show data for the past 3 months. GDS has a 'last quarter' date range, but this shows me Q1, Q2, Q3, or Q4. What I need is the data for the past 3 full months (not counting the current month). I tried creating a calculated field but the documentation isn't proving very useful for the matter at hand.
eg. If the current date is Feb-20, I want to show data from 'Nov 1 - Jan 31'. Also need to compare to same period from last year.
Can anyone help? Thanks in advance!
You can use the option "advanced" in the date dropdown and set the start date to today minus 3 months.
I don't think this is possible in the way you're describing. You can achieve the same by creating a metric in your data source and then applying a filter at the page / chart / report level to remove data which doesn't meet your criteria
来源：https://stackoverflow.com/questions/48930118/how-to-create-a-past-3-months-time-period-in-google-data-studio