Get column value corresponding to another column value in Table.Group

[lecasuso]

Lets say that I have a table like this in M language:

A	B	C
1	25	X
2	18	Y
1	20	Z
1	23	W

I want to group the rows by A and get the min of B from each group, but I also need the corresponding C value of the resulting B. This would be the resulting table in this case:

A	MinB	CorrespondingC
1	20	Z
2	18	Y

As you can note, from the rows with value 1 in column A, 20 is the min value of B, and Z is the corresponding value of 20 in column C.

I have been looking for a while but I haven't found a solution for this in M language. I have to do find corresponding values for several aggregations so I want to know if there is any commun procedure, or some at least, to solve this.

Thanks in advance,

[v-yuta-msft · Accepted solution]

@lecasuso,

You may follow steps below:

1. Duplicate the table, then click Transform-> Group By to general table below:

  

2. Merge the two tables and remove some useless columns:

 

Community Support Team _ Jimmy Tao

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.