topic Search a String for 4 different variables then do a calculation based upon results in DAX Commands and Tips

Search a String for 4 different variables then do a calculation based upon results

Anonymous — Fri, 23 Aug 2019 14:18:33 GMT

I am trying to search a column of product with multiple values for the first two letters of that column then do a calculation:

Product Code Column has values:

AR BLK

AR BLKMB

AR UHP

OX UHP

OX USP

NI NLK

NI FGBLK

etc.

Then if the Product Code = "AR" multiply that by a value

If the Product Code = "NI" multiply that by a different value

If the Product Code = OX" multiply that by a different value (Quantity / # Trips)

Here's where I'm failing, I believe I need to use the LEFT function; but it failed as well:

TPT = if(HASONEVALUE('DeliveryPoint'[ProductCode]), SWITCH(VALUES('DeliveryPoint'[ProductCode]),"NI", DIVIDE(SUM('Shifts and Events'[DeliveredQuantity(DU)])*0.0000362318840580, [Trips(#)]), "AR", DIVIDE(SUM('Shifts and Events'[DeliveredQuantity(DU)])*0.0000517063081696, [Trips(#)]), "OX", DIVIDE(SUM('Shifts and Events'[DeliveredQuantity(DU)])*0.0000413907284768, [Trips(#)]), "CO", DIVIDE(SUM('Shifts and Events'[DeliveredQuantity(DU)])/2000, [Trips(#)])))

Re: Search a String for 4 different variables then do a calculation based upon results

Stachu — Fri, 23 Aug 2019 14:32:36 GMT

you want to create a measure, correct?

TPT =
IF (
    HASONEVALUE ( 'DeliveryPoint'[ProductCode] ),
    SWITCH (
        LEFT ( FIRSTNONBLANK ( 'DeliveryPoint'[ProductCode], TRUE () ), 2 ),
        "NI", DIVIDE (
            SUM ( 'Shifts and Events'[DeliveredQuantity(DU)] ) * 0.0000362318840580, [Trips(#)] ),
        "AR", DIVIDE (
            SUM ( 'Shifts and Events'[DeliveredQuantity(DU)] ) * 0.0000517063081696, [Trips(#)] ),
        "OX", DIVIDE (
            SUM ( 'Shifts and Events'[DeliveredQuantity(DU)] ) * 0.0000413907284768, [Trips(#)] ),
        "CO", DIVIDE (
            SUM ( 'Shifts and Events'[DeliveredQuantity(DU)] ) / 2000, [Trips(#)] )
    )
)

For a calculated column this code could be simplified

Re: Search a String for 4 different variables then do a calculation based upon results

Anonymous — Sat, 24 Aug 2019 12:57:54 GMT

// Please do yourself a favour and
// first create a measure (can be hidden):

[DU Total Code-Agnostic] = SUM ( 'Shifts and Events'[DeliveredQuantity(DU)] )

// Then create a table that will map
// the 2-letter codes into factors
// (the numbers 0.0000362318840580...).
// This could be best done in Power Query.
// You can call the table CodeToFactorMapping.

// Then create measures (as many of them
// as the number of 2-letter codes, where
// xx stands for such a code, NI, OX...):

[DU Total xx] =
var __factor = <get the factor from the mapping table for code xx using lookupvalue>
return
	[DU Total Code-Agnostic] * __factor

// Your final measure would be something
// like this:

TPT =
var __productCode = SELECTEDVALUE ( 'DeliveryPoint'[ProductCode] )
var __2letterCode = LEFT ( __productCode, 2 )
var __total = 
	SWITCH ( __2letterCode,
	
        "NI", [DU Total NI],
        "AR", [DU Total AR],
        "OX", [DU Total OX],
        "CO", [DU Total CO]
    )
var __trips = [Trips(#)]
var __tpt =
	divide ( __total, __trips )
return
	__tpt

Please always try to keep your code clean. If there's something that repeats itself, make it into a unit on its own. You'll save yourself time and frustration and when a time comes to change, you'll need to make the change in one place only.

Best

Darek