Creating a calculated boolean field based on thresholds - powerbi

Question

I'm analysing some data using Power BI, and I have a field in the data called deflection. Normally the value in the field is 0, but a small number of results will have other values ranging from -360 to +360.
Within the dataset, any value > 2 or < -2 might be significant.
I would like to create a new boolean value to indicate if the deflection value is significant or not.
Any value between -2 and + 2 is NOT significant - bSigDeflection = False
Any other value - bSigDeflection = true
How do I approach this?
I have started by using an abs(deflection) value in the sql query, just to keep everything positive. I could write a sql CASE statement that would probably work but I feel that there must be a simpler way to achieve this in Power BI that I am missing.
Any suggestions, clever people?
Thanks

Answer 1

You may use TransformColumns to replace the value with the bool. Or you can use the same code with Table.AddColumn if you want to keep the original value.
let
Source = ...,
coerceDefelectBool = (input) as logical =>
if input < 2 or input > 2 then true else false,
Final = Table.TransformColumns(
Source,
{"Deflection", coerceDefelectBool},
null, MissingField.Ignore
)
in
Final
If you wanted a measure, not a DAX calculated column, you can try something like this.
[ bSigDeflection ] = SWITCH (
TRUE,
SELECTEDVALUE( [Table].[Deflection] ) > 2, TRUE(),
SELECTEDVALUE( [Table].[Deflection] ) < 2, TRUE(),
FALSE()
)