I want to create a trend that is based on the previous 25, 50, 100, 200 etc. data entries. So far I've only been able to create trends with the independent variable being time. Ultimately I want to be able to specify a certain number (25, 50, 100, 200 etc.) and a trend will appear with the most recent data values, counting backwards from time ' * '
Is there a pie calc for this? Can i do it using PI AF?
I'm using the latest version of Pi ProcessBook.
Any help will be greatly appreciated. Thanks in advance.