Weight mode
Weight mode can alter how weights are used.
for example
i1=inidcator1
i2=inidcator2
result=i1*weight1{*+/}i2*weight2
or
result=i1^weight1{*+/}i2^weight2
Note also if power "^" is used, x ^y, if y <1 then it becomes square root
Sign log is not recommend, but users are welcome to experiment.