I have written multiple blog posts so far about creating a date dimension. However, I still get the question about how to create a date dimension. In this series of blog posts I am going to explain in details how you can create a date dimension easily in Power BI (based on Power Query). this Read more about Create a Date Dimension in Power BI in 4 Steps – Step 1: Calendar Columns[…]
Power BI is a cloud service, and that means Power BI files are hosted somewhere. Some DAX functions such as Date/Time functions work on system date/time on the server their file is hosted on. So If you use DAX functions such as TODAY() or NOW() you will not get your local date/time, You will fetch Read more about Solving DAX Time Zone Issue in Power BI[…]
Using Merge in Power Query gives you the ability to join on a EQUAL join with one or more fields between two tables. However, in some situations you need to do the Merge Join not based on equality of values, based on other comparison options. One of the very common use cases is to Merge Read more about Dates Between Merge Join in Power Query[…]
One of the recent features in Power BI Desktop is the ability to create your own custom connector and use it when connecting to the data source. This feature looks just one feature, but it opens doors to many possibilities. With this feature you can write your own custom connector to any types of data Read more about Power BI Custom Connector: Connect to Any Data Sources. Hello World![…]
Previously I have written a blog post explaining two ways of combining data sets with each other; Append vs Merge. In this post I want to explain in details what is the difference between all types of Merge Type and explaining how to choose the right merge (or Join) type. These Merge types are very Read more about Choose the Right Merge Join Type in Power BI[…]
There are some traditional problems in most of industries like how we can reach maximum profit, sales, production or how we can minimize our cost and loos. These types of problems can be seen in different areas such as microeconomic and company management, such as planning, production, transportation, technology . Although the modern management issues Read more about Optimization Problem in Power BI using R scripts: Part1[…]
M is the powerful language behind the scene of Power Query. Any transformation you apply will be written in M language. For many, M looks like a scary language. In this post I like to explain a bit of basics of M. Not mentioning any functions. Mainly I want to explain to you how the Read more about Basics of M: Power Query Formula Language[…]
Power BI Desktop file stores many metadata information in it, one of the most important piece of information stored there is Power Query M scripts. It is always easy to open a PBIX file and realize the queries in Query Editor Window. However, if you have many queries and you want a way to get Read more about Exposing M Code and Query Metadata of Power BI (PBIX) File[…]
K Nearest Neighbour (KNN ) is one of those algorithms that are very easy to understand and it has a good level of accuracy in practice. In Part One of this series, I have explained the KNN concepts. In Part 2 I have explained the R code for KNN, how to write R code and how Read more about Prediction via KNN (K Nearest Neighbours) KNN Power BI: Part 3[…]
What is the main difference between M and DAX? Why we can do a calculated column in two different places? What are pros and cons of each? Which one should I use for creating a profit column? Why I cannot do all of it in only one; DAX or M! Why two different languages?! Why Read more about M or DAX? That is the Question![…]