Hello all,
I am trying to set a filter by boolean mask with values greater/less or equal to…
Not sure how to do this with design script???
Here is what the node to code comes up with.

Great John,
Thank you very muuuuuuch!!!
@BIMadmin Your original solution was fine, too, at least in Dynamo 2.0, except you had < instead of <= and hadn’t connected the code block to the mask input 
Additionally, you could do it all in a CBN:
List.FilterByBoolMask(a1,a1>b1 && a1<=c1);
As of Dynamo 2.0, this produces a dictionary output, though, so keep that in mind. You can address the desired list by d1["in"]or d1["out"] respectively.
Many thanks Avz,
We are still on 1.3.3
but this is good to know though!
Technically, it’s always returned a Dictionary output
It’s just been hidden under the hood. You can also pull the ‘dictionary’ output in 1.X versions.
DSCore.List.FilterByBoolMask(list, mask)[“in”]
DSCore.List.FilterByBoolMask(list, mask)[“out”]
The caveat to this was it didn’t play well with multiple nested lists and you had to use a different method.