DAX formula bar keyboard shortcuts in Power BI Desktop

There are several undocumented DAX formula bar keyboard shortcuts in Power BI Desktop. For instance, you can comment or uncomment portions of your code, go to a specific line of code, and do other things. Some of the keyboard shortcuts are more useful than others — this blog post lists all that I am aware of. Continue reading “DAX formula bar keyboard shortcuts in Power BI Desktop”

Switching from imported data to DirectQuery or Live Connection in Power BI

You can switch from Import to DirectQuery or Live Connection, and from DirectQuery to Live Connection

In some cases, it may be necessary to separate a Power BI report from its dataset. For example, you may want to have multiple reports based on a single dataset, or you may have upgraded to Analysis Services. Currently, Power BI Desktop does not provide a simple way of switching from imported data to Live Connection or DirectQuery, but there are some workarounds. Continue reading “Switching from imported data to DirectQuery or Live Connection in Power BI”

Combo charts with no lines in Power BI

At the moment, Power BI has two visuals that support two Y axes: the line and stacked column chart, and the line and clustered column chart. In the May 2018 release of Power BI Desktop, there is going to be an important enhancement to these charts (as well as the various line visuals): we will be able to set the line stroke width to zero (this can already be done in Power BI service). In this blog post, I am going to show two use cases for it. Continue reading “Combo charts with no lines in Power BI”

Configuring “all” access with dynamic row-level security

Row level security

Row-level security is an important part of many data models. In this article, I am showing a way to selectively grant “all” access with dynamic row-level security and only one role. For example, we can let a CEO see the whole data model, but a department head will be able to see their department’s data only. This article presents a more flexible approach in cases where using an organizational hierarchy and PATHCONTAINS would be inappropriate. Continue reading “Configuring “all” access with dynamic row-level security”

Simple linear regression in DAX

Random data points and a simple linear regression line

DAX, originating in Power Pivot, shares many functions with Excel. As of 2017, some of the functions, such as SLOPE and INTERCEPT, exist in the latter but not in the former. The two functions can be used for a simple linear regression analysis, and in this article I am sharing patterns to easily replicate them in DAX. But first, why would you want to do such analysis? Continue reading “Simple linear regression in DAX”

Extracting images and themes from Power BI Desktop files

Learn how to extract images and themes from your Power BI Desktop files (.pbix)

A colleague of mine has recently asked to provide him a background image from a Power BI Desktop file I have had shared with him previously. Because sometimes the original images are lost and only preserved in .pbix files, I figured a quick blog post about extracting the images would be useful. Custom themes too can be extracted in the same way. Continue reading “Extracting images and themes from Power BI Desktop files”