Author Archive for Matt Allington

Conditional Formatting in Power BI - Level: Beginners I blogged on conditional formatting in Power BI Table visual here when it was released in the May 2016 Power BI Desktop update. At the time of first release, the conditional formatting was pretty basic with only 1 formatting option available. Over time, Microsoft has improved this feature, and now, it is available in both Table and […] Read More
Using Variables in DAX - Level: Intermediate The variable feature in DAX has been around for more than a year and I have simply never got around to writing an article about it – I am changing that today.  Let me start off with some version information and syntax and then I will show you are real life example where I […] Read More
Power BI Accounting Format of Dollars - Level: Beginners As I often say, sometimes it is the little things that can make a big different for some people – in this case Accountants. I was teaching a Power BI class a few weeks ago and I was discussing how the number formatting options work in Power BI.  One of my students (Sheldon) […] Read More
How To Solve a Complex DAX Problem - Level: Advanced I was helping someone on Power Pivot Forum last week with a tricky calculated column question.  As an aside, you may know that I always advise beginners to keep away from calculated columns.  You mostly don’t need calculated columns because in most circumstances a measure is a better option to use (read more […] Read More
New Functions – GENERATESERIES, SELECTEDVALUE - Level: Beginners/Intermediate In the August 2017 update of Power BI Desktop Microsoft released the new What If feature (first demonstrated at MDIS in July).  This new What If capability uses two new DAX functions to complete a task that you have always been able to do manually.  You still can of course still do it […] Read More
What is DAX - I have written a series of articles over the last few years including: What is Power Pivot What is Power Query What is Power BI But I have never written an article about the DAX language, so I thought I would cover this off today. What is DAX? DAX is an acronym for Data Analysis […] Read More
Measure Dependencies in Power BI - Update:  Unfortunately after I released the latest version of my workbook in this article, something changed with Excel to stop the file working as designed.  At this stage I do not know what the issue is, but it seems to only affect the current channel versions of Excel.  I have just reinstalled the deferred channel […] Read More
DMV to Extract Measures from Power Pivot - I have written articles before about how you can extract measures from a data model using DAX Studio and also using Power Pivot Utilities.  These are both excellent tools in their own right and I encourage you to read up on those previous articles to learn more about these tools. Today however I am going […] Read More
Happy Second Birthday Power BI - The 24th of July, 2017 is the second birthday for Power BI.  I thought I would take the occasion of its second birthday to reflect on all the great work that the crack Power BI team at Microsoft has done over the last year.   I think it would be a tough job working in […] Read More
When to Use SUM() vs SUMX() - Level: Beginners/Intermediate It has been 2 years since I first wrote an article about SUM() vs SUMX().  I decided to write a new article to refresh this topic and add in the things I have learnt over the last 2 years. SUM() vs SUMX() First let me start with an overview of both of these […] Read More
The ALL() Function in DAX - Level: Intermediate In this article I am going to write about the ALL() function, show how it works and explain a common use case.  I will also cover the unexpected behaviour that occurs when using the ALL() function in Power BI Desktop – more on that later. For this article I will use my simplified copy […] Read More
Understanding Power Query Combine - Level: Intermediate Sometime late in 2016 Microsoft deployed a new “Combine” feature in both Power Query for Excel (Get and Transform) and also in Power BI Desktop (Get Data).  The new capability makes it easier to combine multiple copies of similar workbooks into a single table without hand coding M Functions, but unfortunately it is now […] Read More
Power Pivot Crashes–Another Update from Seattle - When I was at the Microsoft Data Insights Summit last week I took the opportunity to catch up with Howie Dickerman to get an update on how the bug fixing with Power Pivot for Excel is coming along.  I talked about this in my original blog here and then my previous update here.   And the […] Read More
My MDIS Presentations - Level: Beginners/Intermediate As those that read my blog regularly would know, I have been at the Microsoft Data Insights Summit in Seattle Washington for the last 2 days. I had the privilege and pleasure of presenting two sessions at the event. For those that were not able to attend, here are the videos of my […] Read More
Secret Insider Update on New Power BI Features From MDIS - Today I sat through the Keynote session at the Microsoft Data Insights Summit.  As expected, James Phillips confirmed that MS has been holding back a few killer features to announce at the Summit.  Here is the list of new things that are coming that I wanted to share with you – I am truly excited. […] Read More
My MDIS Data Analytics Challenge Entry - I was reading a blog by David Eldersveld last week where he was talking about his entry in the Microsoft Data Insights Summit Data Analytics Challenge.  I originally was too busy to enter however I was inspired by his article and thought I should prepare an entry albeit with only a few days to go.  […] Read More
Microsoft Announces the Return of Export to Excel - At the start of May 2017, Microsoft announced that Export to Excel/CSV would no longer be available to Power B Free users, and would not be part of the new Power BI Premium offering either. Today Microsoft announced that it has listened to community feedback and has agreed to include this feature for all users again. […] Read More
Power BI Free is the Main Problem Here - I am an enthusiastic sponsor of Microsoft BI. I have been fortunate enough to build a new career off the back of the great products Microsoft has developed, specifically Power BI, Power Pivot and Power Query.  Having said that, I am definitely disappointed with the new licensing agreement changes have been released in the last […] Read More
Power BI Licences Changes–The Good, The Bad and The Why - Microsoft today announced that it is changing the way it licences its Power BI service product.  I want to provide my personal view on why it is doing this, what is good and also what is bad about this change. The Problem MS is Trying to Address Let me start by explaining the problem that […] Read More
How and Where to Get Help for Power BI - Level: Beginners/Intermediate Regardless of what stage you are at in your Power BI/Power Pivot/Power Query journey, at some stage you are going to need some help.  Believe me I am no different to you – we are all learning and we all need help sometime or another.  There are basically 3 options that I want […] Read More