If staments

[Anonymous]

Hi

I am trying to create a custom column that calculates the unit savings if plant A were to use plant B pricing. How would I write an if statement that would only return the savings and return a value of 0 if it would cost more money. I want it to look something like the table below.

Plant A	Plant B	Savings
1	0.50	0
3.75	1.90	1.85
0.70	1.15	0
2	1.25	0.75

[edhans · Accepted solution]

Add this custom column in Power Query @Anonymous 

if [Plant A] > [Plant B] then [Plant A] - [Plant B] else 0

It will return this data for you:

Then simply change the data type to a number. Here is the full M code:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUTLQMzVQitWJVjLWMzcF8g31LCF8Az1zAzDf0BTMNwJzjICcWAA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Plant A" = _t, #"Plant B" = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Plant A", type number}, {"Plant B", type number}}),
    #"Added Savings" = Table.AddColumn(#"Changed Type", "Savings", each if [Plant A] > [Plant B] then [Plant A] - [Plant B] else 0),
    #"Changed Type1" = Table.TransformColumnTypes(#"Added Savings",{{"Savings", type number}})
in
    #"Changed Type1"

How to use M code provided in a blank query:
1) In Power Query, select New Source, then Blank Query
2) On the Home ribbon, select "Advanced Editor" button
3) Remove everything you see, then paste the M code I've given you in that box.
4) Press Done
5) See this article if you need help using this M code in your model.

[smpa01]

@Anonymous 

column = if ([plant a]>[plant b], [plant a]-[plant b],0)

[Anonymous]

I get an error when this try this is there a differnent method.

[smpa01]

@Anonymouslooks like you are trying this pqwry while I gave you the dax soluion.

in pqwry do the following

if [plant a]>[plant b] then [plant a] else [plant a]-[plant b]

[parry2k]

@Anonymous try following columns

New Col = 
MAX ( Table[Plant A] - Table[Plant B], 0 )

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