Hello,
The problem is because its data sets not datasets.
Data sets as in series, see help below.
Mike.
help difference
USAGE:
DIFFERENCE set1 set2 /case /only
DESCRIPTION:
Return the difference of two data sets.
DIFFERENCE is a native value.
ARGUMENTS:
set1 -- First data set (Type: series bitset)
set2 -- Second data set (Type: series bitset)
REFINEMENTS:
/case -- Uses case-sensitive comparison.
/only -- Only elements of the first that are not in the second.
>> a: [1 2 3]
== [1 2 3]
>> b: [2]
== [2]
>> difference a b
== [1 3]
>>
