How to create a DAX measure for finding values in a previous month, not using a Date field?


How to create a DAX measure for finding values in a previous month, not using a Date field?



I am currently trying to create a report that shows how customers behave over time, but instead of doing this by date, I am doing it by customer age (number of months since they first became a customer). So using a date field isn't really an option, considering one customer may have started in Dec 2016 and another starts in Jun 2017.



What I'm trying to find is the month-over-month change in units purchased. If I was using a date field, I know that I could use



[Previous Month Total] = CALCULATE(SUM([Total Units]), PREVIOUSMONTH([FiscalDate]))



I also thought about using EARLIER() to find out but I don't think it would work in this case, as it requires row context that I'm not sure I could create. Below is a simplified version of the table that I'll be using.


ID Date Age Units
219 6/1/2017 0 10
219 7/1/2017 1 5
219 8/1/2017 2 4
219 9/1/2017 3 12
342 12/1/2016 0 500
342 1/1/2017 1 280
342 2/1/2017 2 325
342 3/1/2017 3 200
342 4/1/2017 4 250
342 5/1/2017 5 255




1 Answer
1



How about something like this?


PrevTotal =
VAR CurrAge = SELECTEDVALUE(Table3[Age])
RETURN CALCULATE(SUM(Table3[Units]), ALL(Table3[Date]), Table3[Age] = CurrAge - 1)



The CurrAge variable gives the Age evaluated in the current filter context. You then plug that into a filter in the CALCULATE line.


CurrAge


Age


CALCULATE





That did the trick, I was somehow unaware that I could even declare variables in a DAX measure. Thanks for your help!
– Andrew
Jun 29 at 17:02





They're very useful, especially when you want to use the same value several times.
– Alexis Olson
Jun 29 at 18:16






By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Comments

Post a Comment

Popular posts from this blog

paramiko-expect timeout is happening after executing the command

paramiko-expect timeout is happening after executing the command Can someone help me why timeout is happening after executing the command .I am trying to SSH to a machine and execute a command.I want to store the result of the executed command . I have referred paramiko-timeout but i didn't get my expected result. import traceback try: import paramiko except ImportError: raise Exception("Please install paramiko , pip install paramiko") import pexpect from paramiko_expect import SSHClientInteraction def main(): HOSTNAME = "minion5.net" USERNAME = "root" PASSWORD = "help@432" PROMPT = "root@*:~$s+" try: client = paramiko.SSHClient() client.load_system_host_keys() client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) client.connect(hostname=HOSTNAME, username=USERNAME, password=PASSWORD) with SSHClientInteraction(client, timeout=20, display=True) as interact: ...
Read more

Opening a url is failing in Swift

Opening a url is failing in Swift breakpointing inside the callback and logging success shows false. I added itms-apps to my plist: LSApplicationQueriesSchemes and put this in my app delegate: func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool { return true } func moreTapped() { let url = NSURL(string: "itms-apps://itunes.com/developer/quantum-productions/id979315877") if #available(iOS 10.0, *) { UIApplication.shared.open(url! as URL, options: [:], completionHandler: {(success: Bool) in }) } else { UIApplication.shared.openURL(url! as URL) } } Are you testing on a real device? – rmaddy Jun 21 at 23:57 I try on a device, get "Cannot Connect to App Store". Device is online ...
Read more

Export result set on Dbeaver to CSV

Export result set on Dbeaver to CSV Normally I use Dbeaver for windows and always export my result set like this: run my query --> select the result --> export the result set --> select export to clipboard --> done This step by step puts my result set in my clipboard and I can paste it wherever I want to work with it. The problem is that now I am using dbeaver for mac and this guide is not working. I can go on until the moment that I select my result set like in the image below: exporting data set But once I go further in the process, in the last step I get: no query Note that in "source" it was suppose to show the query that originated the result set, but instead it says just "select. As a result it does't select my result or anything (besides being "successful"). Normally my query would show up there automatically and I couldn't find any option that corrects this problem in the menus. Please help me! Thanks. Aft...
Read more