Month: November 2016

Visualization Tip: Change to Filter instead of highlight Control the Interaction in Power BI Report

Posted on by Reza Rad

Power BI reports are highly interactive, If you select a column in a column chart other charts will be highlighted. Selecting a slicer value will filter all other visuals in the report. This interactivity can be controlled easily. Despite the fact that this feature has been released in early phases of Power BI, there are Read more about Visualization Tip: Change to Filter instead of highlight Control the Interaction in Power BI Report[…]

Lost Customers DAX Calculation for Power BI

Posted on by Reza Rad

One of the sample scenarios that DAX can be used as a calculation engine is customer retention. In the area of customer retention businesses might be interested to see who there lost customers or new customers are in the specific period. Obviously this can be calculated in the Power Query or in the data source Read more about Lost Customers DAX Calculation for Power BI[…]

Not Folding; the Black Hole of Power Query Performance

Posted on by Reza Rad

Have you ever thought does your Power Query Transformations happens in the data source side (server side), or on the local memory (client side)? When you use a relational data source, query can be run on the data source, but it depends on transformations. Some transformations can be translated to query language of the data Read more about Not Folding; the Black Hole of Power Query Performance[…]

Performance Tip for Power BI; Enable Load Sucks Memory Up

Posted on by Reza Rad

In the area of performance tuning a Power BI model many things has to be considered, most of them around consumption of the CPU and RAM. One of the most basic but important consideration is minimizing the usage of memory. By default all queries from Query Editor will be loaded into the memory of Power Read more about Performance Tip for Power BI; Enable Load Sucks Memory Up[…]

Grouping and Binning; Step Towards Better Data Visualization

Posted on by Reza Rad

The latest update of Power BI Desktop (October 2016) has many features. Two of these features are grouping and binning. These features used to create groups of items and visualize them better in the report. Previously you could do that by Power Query or DAX calculated columns, now it is all possible simply through the Read more about Grouping and Binning; Step Towards Better Data Visualization[…]

Slides of my sessions at PASS Summit 2016

Posted on by Reza Rad

Thanks to everyone who attended at my sessions in PASS Summit 2016 this year. I have uploaded session slides here in this post with links to references inside it. Please contact me if you have any questions. It was my pleasure to speak this year for the 4th time in this conference which I believe Read more about Slides of my sessions at PASS Summit 2016[…]