Power Query - Append Grouped Rows based on specific columns AND row values

lzcrss2

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Joined
Aug 3, 2016
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11
Hi! My data set has 117,000 rows and 14 columns. It is at an item and week level. There is a week column, an item description column, 11 columns of characteristics that describe/classify the item, and finally the value column (cost).

Is it possible, via M code or otherwise, for me to group by certain columns, and only for certain row values, and then append those groupings onto the existing data set?

Here is a fake example data set. In this example, I don't want to append rows for ALL combinations of "Type"+"Size"+"Source", I just want to see all weeks of data for the 2 specific combos at the bottom: Large apple from supermarket and Small orange from farmer's market. This example is just in an Excel spreadsheet where I used SumIfs just to illustrate what I want my query to do.

1613182459954.png
 

Excel Facts

How to fill five years of quarters?
Type 1Q-2023 in a cell. Grab the fill handle and drag down or right. After 4Q-2023, Excel will jump to 1Q-2024. Dash can be any character.
Filter your data twice for both criteria, then append data again.

You can do this in 1 query, where you refer to an earlier step when needed (m-code knowledge required), or in different queries, referring to another query if you need a UI-based solution.
 
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