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Power Query: Riveting Results Part 2

22 December 2021

Welcome to our Power Query blog. This week, I create parameters for last week’s example.

My salespeople are still taking a break. We will keep looking at those exam results from last week:

I will be grading the results, and I will be using this example to explore parameters. Last time, I created a column to grade the results:

I am now ready to create some parameters to calculate the grades. To begin with, I will enter these parameters from the ‘Manage Parameter’ option on the Home tab:

I opt to create a ‘New Parameter’. This brings up a dialog:

I am going to enter a parameter for each grade. I call my first parameter P_Grade_9:

The ‘P_’ is to indicate it is a parameter. This will make it easy to spot in the list of queries. I also enter a description. When I choose the Type, there is no option for percentage, so I make it a ‘Decimal Number’ instead.

For now, I will allow ‘Any value’. I will be revisiting the ‘Suggested Values’ dropdown for this example later.

To complete this parameter, I enter a ‘Current Value’ of 90. If I were to click ‘OK’ at this point, the parameter would be created, and I would automatically exit the dialog:

I can see the parameter in the Queries panel. If the parameter is selected, then I can edit the ‘Current Value’ if I wish. The ‘Current Value’ also appears next to the parameter in brackets ‘(90)’ so that I can always see what it is set to in the Queries panel.

If I want to create multiple parameters, then I can stay in the ‘Manage Parameter’ dialog by clicking ‘New’ instead of ‘OK’ when I have finished each parameter:

Note that since my parameters are similar, I can also copy and paste or create Duplicates:

This is fine, as long as I remember to change the name, description and ‘Current Value’.

Do not create a ‘Reference’. This would return the ‘Current Value’ of the parameter:

The icon next to P_Grade_8 (2) indicates a number. Note also that the ‘(2)’ in this case is created because there is already a P_Grade_8 and is not the value!

I now have all my parameters ready for the next step:

Come back next time for more ways to use Power Query!