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yingyinr
Community Support
Community Support

Calculate Row Total and Column Total in Power Query

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Vijay_A_Verma
Super User
Super User

Power Query doesn't provide List.RandomBetween function. This article provides a way for this.

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v-jingzhang
Community Support
Community Support

Make column numbering not consecutive over the whole dataset but just for equal column names

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Vijay_A_Verma
Super User
Super User

This article compares 3 techniques to refer to previous row on the basis of time taken by them. This shows that Merge method is the superior method.

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RicoZhou
Community Support
Community Support

This is an article about how to do cumulative counting by group in Power Query.

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Vijay_A_Verma
Super User
Super User

This article gives the formula to test whether a given data is Date or not.

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Vijay_A_Verma
Super User
Super User

This article offers formulas to simulate STARTOFWEEK and ENDOFWEEK functions like Date.StartOfWeek and Date.EndOfWeek functions of Power Query language M

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TedPattison
Microsoft
Microsoft

Join us for the May session of Power BI Dev Camp with Alex Powers of the Power BI CAT team. Alex will teach you how to get started with creating custom functions to aid in the reusability of transformation patterns and how to add robust documentation to your Power Query queries.

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Vijay_A_Verma
Super User
Super User

This article provides formulas for Text.ContainsAny and Text.ContainsAll functions as these are not provided by Power Query Language M.

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Vijay_A_Verma
Super User
Super User

This article gives a formula to generate integer random numbers in Power Query Language M.

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Vijay_A_Verma
Super User
Super User

This gives you two formulas to test whether a value contained is number or not. 

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Vijay_A_Verma
Super User
Super User

Use Case - Excel offers many number conversion functions and BIN2DEC (Binary to Decimal) is one of them. But Power Query's M language doesn't offer this conversion function. Below are some examples when a binary number is given and Excel's BIN2DEC function is applied on that. 

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Vijay_A_Verma
Super User
Super User

Use Case - Sometimes there will be a need to extract domain names from given URLs. Hence http://www.microsoft.com should give microsoft. Below are some sample cases and the results expected.

domain.png

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amitchandak
Super User
Super User

How to perform a ‘split and merge’ on columns to change (a) into (b)?

 

Power BI(67).png

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Vijay_A_Verma
Super User
Super User

Use Case - There are scenarios where you will be required to find the first/last non null value in a row. For example, to answer the questions:

1. What was the first sales amount done by a sales person? - This means that you will have to find first non-null from 2017 to 2022. For example, for Greg this is 688.

2. What was the last sales amount done by a sales person - This means that you will have to find last non-null from 2017 to 2022. Hence for Laura, this is 753.

Of course, if more years are added in the beginning or end, the formula should support the flexibility of Power Query i.e. if more columns are added, the result should include those columns as well.

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