Dax leap year

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Dax leap year

This is what I call same period last year to date. In the above screenshot, we have only sales up until July The same period last year calculation at the month level is correct for that period itself month level.

However, for the whole quarter is not, because if I am comparing Qtr 3 ofI just have one month of sales there July In Qtr 3 ofhowever, because we have sales of all months July, August, and Septemberthe two values are not comparable. The correct calculation would be finding the last date that we have sales on, then find the same date but last year, and then calculate the sales of the same period last year up until that day. Like anything else in DAX, there are multiple ways of doing this, here is one method explained below.

Having the ALL helps me to find the last date from the sales table regardless of the filter context in the visual. If there is a leap year in between this period, then the calculation above is wrong, so I added below part to check for that, and get the correct value regardless:. We have all the elements now.

Using the SamePeriodLastYear combined with Filter, we can get only part of the period that is before the date we calculated in the previous step. As you can see, the above calculation only calculates rows up until the same day but last year. The quarter calculation and yearly calculation is also aggregating that correctly.

Compared to values marked red above which is incorrectly calculating the entire period, this calculation works perfectly fine for comparison of this year vs last year. Note that, like anything else in DAX, this calculation can be done in many other ways too. Hi Reza: Your resuklts are correct, but the user may see strange results.

Calculating Sales Financial Year to Date in Power BI with DAX

In your Chart, the value for Dec will show sales up to Dec The calculated value will show results for December 01 to 05,which will probably differ. Hi Roberto The first scenario you mentioned is covered already. However, I agree about the leap year scenario.

Does the user want to do the analysis considering days? This is a sample showing how the calculation should be done. Cheers Reza. Iso week or normal week?

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Hi Reza, Thank you very much for this solution which I have used on a sales dataset, however another project requires use of a dataset that has a line in my fact table for each component of the BOM. Your email address will not be published. Reza Rad. Reza is also co-founder and co-organizer of Difinity conference in New Zealand.

He is the leader of the New Zealand Business Intelligence users group. And He is a Microsoft Certified Trainer. Leave a Reply Cancel reply Your email address will not be published.Today is February 29th, and that means, this year we have one more day to be awesome. So lets celebrate it in Excel style! Why 14 methods to just find the year in cell D4 is leap year or not?

Because, we all know that by learning different ways to solve a problem, we become smarter, more awesome and have more fun. So lets roll. All the names are self-explanatory, except the febDays. So lets take a look at it. For one of the methods, we need to have all the dates in February in a list.

dax leap year

But we want all dates in February. That means, we need to use a list array in third parameter of DATE like this:. But the problem is in many years Feb has only 28 days, and for rest, it has 29 days. So we modify the second part of row formula and use the last DAY of the Feb, like this:.

This is the obvious one. So a simple leap year check is to see if February 29 is March 1st or not!

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This is another obvious test. In a leap year, February has 29 days. In non leap years, Feb has 28 days a multiple of 7so both Feb and March start on same day of week. In real world there is no zeroth day for any month. But in Excel, since all dates are numbers, 0th day refers to last day of previous month.

In leap years, there are 91 days between January 1st and April 1st.You have followed the time intelligence golden rules to perfection and you think you can handle all time intelligence DAX functions. But unlike the contoso dataset you are working with actual live data from your own production environment and here you have data until the current month not the end of the year. Like this:. First we select the YTD of the current year by selecting the current year in the slicer and using the normal sum.

Now to get the YTD of previous year we do a:. What happens here? We do the sum of table1[sales] where we use the value of datum[Date] to calculate the sum of sales one year back. What is the result:. It is much more. Well one of the golden rules is that you need to have a complete contiguous time table, that means that in my seperate time table we have loaded dates until the end of the current year. So what can we do? Well we could make the formula ourself.

We want to get the range of datum[Date] values from the first day of the previous year:. To select the date we want the calculation to end we use:. Do these measures suffer from the same behaviour? If so, this is something you should fix in the next version This is a tough issue to explain to the average user. Both use the context to determine their range. I think this is a though one. This tip is HUGE to me, so thank you. I will attempt to describe what i am using it for and perhaps someone can tell me if there is yet a better way.

I need to get a MTD of the NEXT month which will not be a complete month and compare to the same range of dates in the prior years month. The thing is, i have two different places to get the DATE from. There might be a different way but is there a reason you want to have a different query? I have the same issue. So It look more or less like these.This is what I call same period last year to date.

In the above screenshot, we have only sales up until July The same period last year calculation at the month level is correct for that period itself month level. However, for the whole quarter is not, because if I am comparing Qtr 3 ofI just have one month of sales there July In Qtr 3 ofhowever, because we have sales of all months July, August, and Septemberthe two values are not comparable.

The correct calculation would be finding the last date that we have sales on, then find the same date but last year, and then calculate the sales of the same period last year up until that day.

dax leap year

Like anything else in DAX, there are multiple ways of doing this, here is one method explained below. Having the ALL helps me to find the last date from the sales table regardless of the filter context in the visual.

If there is a leap year in between this period, then the calculation above is wrong, so I added below part to check for that, and get the correct value regardless:. We have all the elements now. Using the SamePeriodLastYear combined with Filter, we can get only part of the period that is before the date we calculated in the previous step. As you can see, the above calculation only calculates rows up until the same day but last year.

The quarter calculation and yearly calculation is also aggregating that correctly. Compared to values marked red above which is incorrectly calculating the entire period, this calculation works perfectly fine for comparison of this year vs last year.

Note that, like anything else in DAX, this calculation can be done in many other ways too. Hi Reza: Your resuklts are correct, but the user may see strange results. In your Chart, the value for Dec will show sales up to Dec The calculated value will show results for December 01 to 05,which will probably differ. Hi Roberto The first scenario you mentioned is covered already.

However, I agree about the leap year scenario.

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Does the user want to do the analysis considering days? This is a sample showing how the calculation should be done. Cheers Reza. Iso week or normal week? Hi Reza, Thank you very much for this solution which I have used on a sales dataset, however another project requires use of a dataset that has a line in my fact table for each component of the BOM.

Reza Rad. Reza is also co-founder and co-organizer of Difinity conference in New Zealand. He is the leader of the New Zealand Business Intelligence users group.

And He is a Microsoft Certified Trainer.It is a leap year. Please see the attached screenshot for reference. Go to Solution. View solution in original post. Lets try this first - as SPLY may have logic built in for leap year. The time has come: We are finally able to share more details on the brand-new ranks coming to the Power BI Community!

Click for the top entries. Missed the Arun 'Triple A' event or want to revisit it? We've got you covered! Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for.

Search instead for. Did you mean:. All forum topics Previous Topic Next Topic. Sal Advocate II. Sameperiodlastyear - Leap Year.

Age in Years Calculation that works for Leap Year in Power BI using Power Query

Can you please help me? Message 1 of 6. Accepted Solutions. Re: Sameperiodlastyear - Leap Year. This is the correct behaviour. This is how it should be. The last day of the month is compared to the last day of the month of the prior year. This is what time-intel means. If you want to override this, you'll need to write your own piece of logic that'll deal with Feb Rather easy to do. Message 4 of 6. AlexAlberga Resolver I. Message 2 of 6. Hi Alex, Thanks for the quick response.

Message 3 of 6. Message 5 of 6.

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By the way You should never rely on the automatic Date table that PBI creates for you. You should always create your own Date table according to the rules for such tables. Message 6 of 6. Helpful resources.

New Ranks Launched March 24th!The parameter only accepts a constant string value and does not seem to deal with the issue where comparative years are leap years - e. Go to Solution. If you add a Fiscal Year column to your 'Date' table, this measure would work:. View solution in original post.

DAX Leap Year In Power BI

The time has come: We are finally able to share more details on the brand-new ranks coming to the Power BI Community! Click for the top entries.

Missed the Arun 'Triple A' event or want to revisit it? We've got you covered! Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

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dax leap year

Did you mean:. All forum topics Previous Topic Next Topic. JamesHinton Frequent Visitor. Is it possible to use these patterns in this case? Thanks in advance. James Hinton. Labels: Need Help.

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Message 1 of 3. Accepted Solutions. OwenAuger Community Champion.

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Mark my post as a solution! Proud to be a Datanaut! Message 2 of 3. Thank you Owen. Your detailed reply is most helpful and much appreciated. Message 3 of 3. Helpful resources. New Ranks Launched March 24th! Learn more. View now.Interesting Interview QuestionsInterview Qs.

There are two types of Years — Leap year and Non Leap year. Lets first understand what are they. Lee Hill said:. July 12, at PM. Like Liked by 1 person. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account.

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You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. This site uses Akismet to reduce spam. Learn how your comment data is processed. A normal year has days. A Leap Year has days the extra day is the 29th of February. Lee Hill said: July 12, at PM. Leave a comment Cancel reply Enter your comment here Please log in using one of these methods to post your comment:.

Email required Address never made public. Name required. Post was not sent - check your email addresses! Sorry, your blog cannot share posts by email. Leap Years are any year that can be evenly divided by 4 such as, etc. The maximum recursion has been exhausted before statement completion.


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