miss:{+/j=!#j@:<j:?j@:&x=j:_ x@:&~0>x}

/ work with all
\t a:*|8{x,,?,//x{x y/:'|x}/:(+;*;%)}/,-9 9.0

/ work with positives
\t b:*|8{x,,?,//x{x y/:'|x}/:(+;*;%;_abs-)}/,,9.0

miss a
miss b